Water Temperature of the Intracoastal Waterway in Port St. Joe, FL
Current Water Temperature
Measurement Time: Saturday, April 18, 2026, 11:45 AM EDT
Temperature Locations
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Local Points of Interest
Gulf County CanalStation Name: IWW EAST OF GULF CO CANAL NEAR PORT ST JOE, FL
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 46 feet
Nearest Address:
Port St. Joe, FL 32456
Gulf County
GPS Coordinates: 29.88555556, -85.2436111
Nearby Water Temperatures
Intracoastal Waterway, White City, FL (0.7 mi)Jackson River, Apalachicola, FL (12.5 mi)
Apalachicola River , Sumatra, FL (14.4 mi)
Apalachicola River, Apalachicola, FL (19.3 mi)
Saint Andrew Bay, Panama City, FL (31.3 mi)
Gulf of Mexico, Panama City Beach, FL (44.2 mi)
Sopchoppy River, Sopchoppy, FL (47.9 mi)
Spring Creek, Spring Creek, FL (56.3 mi)
Apalachicola River , Chattahoochee, FL (60.8 mi)
Wakulla Springs, Crawfordville, FL (61.3 mi)
Jackson Blue Spring, Marianna, FL (62.8 mi)
Aucilla River, Lamont, FL (77.2 mi)
Wacissa River, Wacissa, FL (80.8 mi)
Wacissa River, Wacissa, FL (81.1 mi)
Econfina River, Perry, FL (81.5 mi)
Weather for Port St. Joe, Florida
Current Weather

Five Day Weather Forecast

Sat
H: 82°F
L: 58°F

Sun
H: 77°F
L: 64°F

Mon
H: 80°F
L: 56°F

Tue
H: 77°F
L: 62°F

Wed
H: 77°F
L: 66°F
Air Quality
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 101 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:10 PM
Daylight: 12 hrs 59 mins
Moon Transit: 2:43 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
2:24 AM - 4:54 AM2:13 PM - 4:43 PM
Minor Periods
9:26 PM - 10:56 PM7:10 AM - 8:40 AM
Action Rating: 4 out of 5
Fire Weather Watch issued April 18 at 2:27AM EDT until April 20 at 8:00PM EDT by NWS Tallahassee FL
Effective: Sat April 18, 2026, 2:27 AM
Expires: Sat April 18, 2026, 4:00 PM
...Critical Fire Weather Today through Monday... Today, the Fire Weather Watch has been upgraded to a Red Flag Warning and is in effect for portions of the Florida Big Bend and east of the Flint River in Georgia, where RH will tank to near or below 30 percent, where wind will exceed 12 mph, where dispersion will exceed 90, where temperatures will reach 88-92 degrees (within a few degrees of record highs), and where the Hot Dry Windy Index exceeds the 90th percentile at a time of year when its climatology is already nearing its annual peak in early May. A dry cold front on Sunday will bring northerly afternoon wind gusts of 20-25 mph, and RH will be dropping in the afternoon as a drier air mass arrives. Lingering cloud cover and shading of fuels will be the main inhibitor to active fire behavior on Sunday, but critical conditions remain possible Sunday afternoon. On Monday, a very dry air mass will overspread the region, with minimum relative humidities commonly in the 15-20 percent range. Sustained northeast winds will be near 10 to 15 mph and support extremely high dispersion. Full sunshine, seasonably warm late April temperatures, and ongoing drought will all contribute to a critical fire environment. A Fire Weather Watch remains in effect for Monday where winds are currently forecast to exceed 15 mph, and the watch could be expanded in later forecast updates. * AFFECTED AREA...Florida fire weather zones 010, 011, 012, 014, 015, 028, 029, 034, 112, 114, 115, 118, 127, 128, and 134. Georgia fire weather zones 143, 144, and 155. * WIND...Northeast near 15 mph, with gusts near 20 mph. * HUMIDITY...15-20 percent, followed by poor humidity recovery on Monday night. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Fire Weather Watch issued April 18 at 2:06PM EDT until April 20 at 8:00PM EDT by NWS Tallahassee FL
Effective: Sat April 18, 2026, 2:06 PM
Expires: Sun April 19, 2026, 3:30 AM
...Critical Fire Weather through Monday... A cold frontal passage on Sunday morning will be followed on Sunday afternoon by northerly winds gusting around 25 mph, and RH will be dropping in the afternoon as a drier air mass arrives. Lingering cloud cover will be the main inhibitor to active fire behavior on Sunday, but critical conditions remain possible Sunday afternoon. With dry air continuing to filter in on Sunday night, there will be poor nighttime humidity recovery. On Monday, the heart of the dry air mass will be in place, with minimum relative humidities commonly in the 15-20 percent range. Sustained northeast winds will be near 10 to 15 mph and support extremely high dispersion. Full sunshine, seasonably warm late April temperatures, and ongoing drought will all contribute to a critical fire environment. A Fire Weather Watch remains in effect for Monday where winds are currently forecast to touch 15 mph. The watch could be expanded in later forecast updates. * AFFECTED AREA...Florida fire weather zones 010, 011, 012, 014, 015, 028, 029, 034, 112, 114, 115, 118, 127, 128, and 134. Georgia fire weather zones 143 and 155. * WIND...Northeast near 15 mph, with gusts near 25 mph. * HUMIDITY...15-20 percent, following poor humidity recovery on Sunday night. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Red Flag Warning issued April 18 at 2:27AM EDT until April 18 at 8:00PM EDT by NWS Tallahassee FL
Effective: Sat April 18, 2026, 2:27 AM
Expires: Sat April 18, 2026, 4:00 PM
...Critical Fire Weather Today through Monday... Today, the Fire Weather Watch has been upgraded to a Red Flag Warning and is in effect for portions of the Florida Big Bend and east of the Flint River in Georgia, where RH will tank to near or below 30 percent, where wind will exceed 12 mph, where dispersion will exceed 90, where temperatures will reach 88-92 degrees (within a few degrees of record highs), and where the Hot Dry Windy Index exceeds the 90th percentile at a time of year when its climatology is already nearing its annual peak in early May. A dry cold front on Sunday will bring northerly afternoon wind gusts of 20-25 mph, and RH will be dropping in the afternoon as a drier air mass arrives. Lingering cloud cover and shading of fuels will be the main inhibitor to active fire behavior on Sunday, but critical conditions remain possible Sunday afternoon. On Monday, a very dry air mass will overspread the region, with minimum relative humidities commonly in the 15-20 percent range. Sustained northeast winds will be near 10 to 15 mph and support extremely high dispersion. Full sunshine, seasonably warm late April temperatures, and ongoing drought will all contribute to a critical fire environment. A Fire Weather Watch remains in effect for Monday where winds are currently forecast to exceed 15 mph, and the watch could be expanded in later forecast updates. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING FOR LOW HUMIDITY, MODERATE BREEZES, VERY HIGH DISPERSIONS AND ONGOING DROUGHT... The National Weather Service in Tallahassee has issued a Red Flag Warning, which is in effect from 11 AM EDT /10 AM CDT/ this morning to 8 PM EDT /7 PM CDT/ this evening. The Fire Weather Watch is no longer in effect. The National Weather Service in Tallahassee has issued a Fire Weather Watch, which is in effect from Saturday morning through Saturday evening. a Fire Weather Watch has also been issued from Monday morning through Monday evening. * AFFECTED AREA...Florida fire weather zones 013, 016, 017, 018, 019, 027, 326, and 426. Georgia fire weather zones 145, 146, 147, 156, 157, 158, 159, and 160. * WIND...On Saturday...southwest 10-15 mph, with gusts near 20 mph. On Monday, northeast winds near 15 mph, with gusts around 25 mph. * HUMIDITY...On Saturday, 30-35 percent. On Monday, 15-20 percent, followed by poor humidity recovery on Monday night. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Fire Weather Watch issued April 18 at 2:27AM EDT until April 20 at 8:00PM EDT by NWS Tallahassee FL
Effective: Sat April 18, 2026, 2:27 AM
Expires: Sat April 18, 2026, 4:00 PM
...Critical Fire Weather Today through Monday... Today, the Fire Weather Watch has been upgraded to a Red Flag Warning and is in effect for portions of the Florida Big Bend and east of the Flint River in Georgia, where RH will tank to near or below 30 percent, where wind will exceed 12 mph, where dispersion will exceed 90, where temperatures will reach 88-92 degrees (within a few degrees of record highs), and where the Hot Dry Windy Index exceeds the 90th percentile at a time of year when its climatology is already nearing its annual peak in early May. A dry cold front on Sunday will bring northerly afternoon wind gusts of 20-25 mph, and RH will be dropping in the afternoon as a drier air mass arrives. Lingering cloud cover and shading of fuels will be the main inhibitor to active fire behavior on Sunday, but critical conditions remain possible Sunday afternoon. On Monday, a very dry air mass will overspread the region, with minimum relative humidities commonly in the 15-20 percent range. Sustained northeast winds will be near 10 to 15 mph and support extremely high dispersion. Full sunshine, seasonably warm late April temperatures, and ongoing drought will all contribute to a critical fire environment. A Fire Weather Watch remains in effect for Monday where winds are currently forecast to exceed 15 mph, and the watch could be expanded in later forecast updates. ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING FOR LOW HUMIDITY, MODERATE BREEZES, VERY HIGH DISPERSIONS AND ONGOING DROUGHT... The National Weather Service in Tallahassee has issued a Red Flag Warning, which is in effect from 11 AM EDT /10 AM CDT/ this morning to 8 PM EDT /7 PM CDT/ this evening. The Fire Weather Watch is no longer in effect. The National Weather Service in Tallahassee has issued a Fire Weather Watch, which is in effect from Saturday morning through Saturday evening. a Fire Weather Watch has also been issued from Monday morning through Monday evening. * AFFECTED AREA...Florida fire weather zones 013, 016, 017, 018, 019, 027, 326, and 426. Georgia fire weather zones 145, 146, 147, 156, 157, 158, 159, and 160. * WIND...On Saturday...southwest 10-15 mph, with gusts near 20 mph. On Monday, northeast winds near 15 mph, with gusts around 25 mph. * HUMIDITY...On Saturday, 30-35 percent. On Monday, 15-20 percent, followed by poor humidity recovery on Monday night. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Fire Weather Watch issued April 18 at 2:06PM EDT until April 20 at 8:00PM EDT by NWS Tallahassee FL
Effective: Sat April 18, 2026, 2:06 PM
Expires: Sun April 19, 2026, 3:30 AM
...Critical Fire Weather through Monday... A cold frontal passage on Sunday morning will be followed on Sunday afternoon by northerly winds gusting around 25 mph, and RH will be dropping in the afternoon as a drier air mass arrives. Lingering cloud cover will be the main inhibitor to active fire behavior on Sunday, but critical conditions remain possible Sunday afternoon. With dry air continuing to filter in on Sunday night, there will be poor nighttime humidity recovery. On Monday, the heart of the dry air mass will be in place, with minimum relative humidities commonly in the 15-20 percent range. Sustained northeast winds will be near 10 to 15 mph and support extremely high dispersion. Full sunshine, seasonably warm late April temperatures, and ongoing drought will all contribute to a critical fire environment. A Fire Weather Watch remains in effect for Monday where winds are currently forecast to touch 15 mph. The watch could be expanded in later forecast updates. ...RED FLAG WARNING FOR THIS AFTERNOON IS CANCELLED... The National Weather Service in Tallahassee has cancelled the Red Flag Warning for the rest of this afternoon over Calhoun, Liberty, and Decatur Counties. Relative humidity this afternoon will not get as low as originally forecast. A Fire Weather Watch remains in effect from Monday morning through Monday evening for gusty winds and low humidity. * AFFECTED AREA...Florida fire weather zones 013, 326, and 426. Georgia fire weather zone 156. * WIND...On Monday, northeast winds near 15 mph, with gusts around 25 mph. * HUMIDITY...On Monday, 15-20 percent, following poor humidity recovery on Sunday night. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.81 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 95.92 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:10 PM
Daylight: 12 hrs 59 mins
Moon Transit: 2:43 PM
Moonset: 9:56 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
2:24 AM - 4:54 AM2:13 PM - 4:43 PM
Minor Periods
9:26 PM - 10:56 PM7:10 AM - 8:40 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.82 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 90.72 μg/m3
Astronomical
Sun Transit: 1:40 PM
Sunset: 8:11 PM
Daylight: 13 hrs 1 mins
Moon Transit: 3:44 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
3:23 AM - 5:53 AM3:14 PM - 5:44 PM
Minor Periods
12:00 AM - 12:00 AM7:57 AM - 9:27 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 107 μg/m3
Astronomical
Sun Transit: 1:39 PM
Sunset: 8:11 PM
Daylight: 13 hrs 3 mins
Moon Transit: 4:49 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Best Times for Fishing or Hunting
Major Periods
4:26 AM - 6:56 AM4:19 PM - 6:49 PM
Minor Periods
8:51 AM - 10:21 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 102.32 μg/m3
Astronomical
Sun Transit: 1:39 PM
Sunset: 8:12 PM
Daylight: 13 hrs 4 mins
Moon Transit: 5:54 PM
Moonset: 12:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Best Times for Fishing or Hunting
Major Periods
5:31 AM - 8:01 AM5:24 PM - 7:54 PM
Minor Periods
9:54 AM - 11:24 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.11 μg/m3
Sulphur Dioxide: 2.61 μg/m3
Ozone: 86.23 μg/m3
Astronomical
Sun Transit: 1:39 PM
Sunset: 8:13 PM
Daylight: 13 hrs 6 mins
Moon Transit: 6:56 PM
Moonset: 1:22 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
6:35 AM - 9:05 AM6:26 PM - 8:56 PM
Minor Periods
11:01 AM - 12:31 AM12:52 AM - 2:22 AM
Action Rating: 2 out of 5
