Weather for Southport, Connecticut
Current Weather
73°F
Conditions: Partly Cloudy
Humidity: 46%
Feels Like: 76.8°F
Wind: ENE 6.7 mph
Wind Gusts: 7.7 mph
Humidity: 46%
Feels Like: 76.8°F
Wind: ENE 6.7 mph
Wind Gusts: 7.7 mph
Pressure: 30.23 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 2.1
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 2.1
Five Day Weather Forecast
Fri
H: 74°F
L: 65°F
Sat
H: 69°F
L: 65°F
Sun
H: 76°F
L: 67°F
Mon
H: 76°F
L: 63°F
Tue
H: 76°F
L: 65°F
Air Quality
AQI:
2 - Moderate
PM2.5:
7.22 μg/m3
PM10:
7.59 μg/m3
Carbon Monoxide: 373.7 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 118 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 118 μg/m3
Astronomical
Sunrise: 6:31 AM
Sun Transit: 12:49 AM
Sunset: 7:07 PM
Daylight: 12 hrs 36 mins
Sun Transit: 12:49 AM
Sunset: 7:07 PM
Daylight: 12 hrs 36 mins
Moonrise: 9:43 PM
Moon Transit: 4:40 AM
Moonset: 12:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Moon Transit: 4:40 AM
Moonset: 12:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
4:10 AM - 6:40 AM6:59 PM - 9:29 PM
Minor Periods
9:13 PM - 10:43 PM12:01 AM - 1:31 PM
Action Rating: 4 out of 5
Coastal Flood Statement issued September 12 at 2:40AM EDT until September 12 at 5:00PM EDT by NWS Upton NY
Effective: Fri September 12, 2025, 2:40 AM
Expires: Fri September 12, 2025, 4:00 PM
* WHAT...Up to one half foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline. * WHERE...Southern Fairfield County. * WHEN...With the high tide cycle this afternoon. High tide occurs between 3 and 4 PM. * IMPACTS...Brief minor flooding of the more vulnerable locations near the waterfront and shoreline.
Do not drive through flooded roadways.
Friday, September 12, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 68.7°F
Average Humidity: 68%
Average Temperature: 68.7°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0.8
Wind: 9.2 mph
UV Index: 0.8
Air Quality
AQI:
1 - Good
PM2.5:
12.6 μg/m3
PM10:
12.85 μg/m3
Carbon Monoxide: 429.57 μg/m3
Nitrogen Dioxide: 26.31 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 77.88 μg/m3
Nitrogen Dioxide: 26.31 μg/m3
Sulphur Dioxide: 3.35 μg/m3
Ozone: 77.88 μg/m3
Astronomical
Sunrise: 6:31 AM
Sun Transit: 12:49 AM
Sunset: 7:07 PM
Daylight: 12 hrs 36 mins
Sun Transit: 12:49 AM
Sunset: 7:07 PM
Daylight: 12 hrs 36 mins
Moonrise: 9:43 PM
Moon Transit: 4:40 AM
Moonset: 12:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Moon Transit: 4:40 AM
Moonset: 12:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%
Best Times for Fishing or Hunting
Major Periods
4:10 AM - 6:40 AM6:59 PM - 9:29 PM
Minor Periods
9:13 PM - 10:43 PM12:01 AM - 1:31 PM
Action Rating: 4 out of 5
Saturday, September 13, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 67.2°F
Average Humidity: 73%
Average Temperature: 67.2°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 1
Wind: 12.3 mph
UV Index: 1
Air Quality
AQI:
2 - Moderate
PM2.5:
19.51 μg/m3
PM10:
23.1 μg/m3
Carbon Monoxide: 356.75 μg/m3
Nitrogen Dioxide: 20.62 μg/m3
Sulphur Dioxide: 5.35 μg/m3
Ozone: 85.76 μg/m3
Nitrogen Dioxide: 20.62 μg/m3
Sulphur Dioxide: 5.35 μg/m3
Ozone: 85.76 μg/m3
Astronomical
Sunrise: 6:32 AM
Sun Transit: 12:48 AM
Sunset: 7:05 PM
Daylight: 12 hrs 33 mins
Sun Transit: 12:48 AM
Sunset: 7:05 PM
Daylight: 12 hrs 33 mins
Moonrise: 10:32 PM
Moon Transit: 5:40 AM
Moonset: 1:47 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Moon Transit: 5:40 AM
Moonset: 1:47 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Best Times for Fishing or Hunting
Major Periods
5:10 AM - 7:40 AM8:00 PM - 10:30 PM
Minor Periods
10:02 PM - 11:32 PM1:17 PM - 2:47 PM
Action Rating: 2 out of 5
Sunday, September 14, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 71.1°F
Average Humidity: 76%
Average Temperature: 71.1°F
Average Humidity: 76%
Chance of Rain: 85%
Wind: 8.9 mph
UV Index: 1.1
Wind: 8.9 mph
UV Index: 1.1
Air Quality
AQI:
2 - Moderate
PM2.5:
19.76 μg/m3
PM10:
22.15 μg/m3
Carbon Monoxide: 411.88 μg/m3
Nitrogen Dioxide: 24.18 μg/m3
Sulphur Dioxide: 8.05 μg/m3
Ozone: 94.16 μg/m3
Nitrogen Dioxide: 24.18 μg/m3
Sulphur Dioxide: 8.05 μg/m3
Ozone: 94.16 μg/m3
Astronomical
Sunrise: 6:33 AM
Sun Transit: 12:48 AM
Sunset: 7:03 PM
Daylight: 12 hrs 30 mins
Sun Transit: 12:48 AM
Sunset: 7:03 PM
Daylight: 12 hrs 30 mins
Moonrise: 11:31 PM
Moon Transit: 6:41 AM
Moonset: 2:55 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%
Moon Transit: 6:41 AM
Moonset: 2:55 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%
Best Times for Fishing or Hunting
Major Periods
6:11 AM - 8:41 AM9:02 PM - 11:32 PM
Minor Periods
12:00 AM - 12:00 AM2:25 PM - 3:55 PM
Action Rating: 3 out of 5
Monday, September 15, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 69.7°F
Average Humidity: 68%
Average Temperature: 69.7°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 6.5 mph
UV Index: 0
Wind: 6.5 mph
UV Index: 0
Air Quality
AQI:
2 - Moderate
PM2.5:
21.59 μg/m3
PM10:
22.78 μg/m3
Carbon Monoxide: 539.76 μg/m3
Nitrogen Dioxide: 23.32 μg/m3
Sulphur Dioxide: 3.67 μg/m3
Ozone: 94.4 μg/m3
Nitrogen Dioxide: 23.32 μg/m3
Sulphur Dioxide: 3.67 μg/m3
Ozone: 94.4 μg/m3
Astronomical
Sunrise: 6:34 AM
Sun Transit: 12:48 AM
Sunset: 7:02 PM
Daylight: 12 hrs 28 mins
Sun Transit: 12:48 AM
Sunset: 7:02 PM
Daylight: 12 hrs 28 mins
Moonrise: 12:31 AM
Moon Transit: 7:43 AM
Moonset: 3:52 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Moon Transit: 7:43 AM
Moonset: 3:52 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Best Times for Fishing or Hunting
Major Periods
7:13 AM - 9:43 AM12:00 AM - 12:00 AM
Minor Periods
3:22 PM - 4:52 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Tuesday, September 16, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 70.6°F
Average Humidity: 70%
Average Temperature: 70.6°F
Average Humidity: 70%
Chance of Rain: 89%
Wind: 8.5 mph
UV Index: 5
Wind: 8.5 mph
UV Index: 5
Air Quality
AQI:
2 - Moderate
PM2.5:
29.37 μg/m3
PM10:
33.09 μg/m3
Carbon Monoxide: 451.4 μg/m3
Nitrogen Dioxide: 36.49 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 64.54 μg/m3
Nitrogen Dioxide: 36.49 μg/m3
Sulphur Dioxide: 5.41 μg/m3
Ozone: 64.54 μg/m3
Astronomical
Sunrise: 6:35 AM
Sun Transit: 12:47 AM
Sunset: 7:00 PM
Daylight: 12 hrs 25 mins
Sun Transit: 12:47 AM
Sunset: 7:00 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:39 AM
Moon Transit: 8:42 AM
Moonset: 4:37 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Moon Transit: 8:42 AM
Moonset: 4:37 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:12 AM - 10:42 AM12:00 AM - 12:00 AM
Minor Periods
4:07 PM - 5:37 PM12:09 AM - 1:39 AM
Action Rating: 2 out of 5
The times presented here are based upon the solunar theory, which is the idea that the movements of
fish and other animals are affected by the location of the sun and moon. The major periods are
believed to be the times of the greatest animal activity and occur when the moon is directly
overhead or underfoot (lunar transits). The minor periods also see increased activity and
occur when the moon is rising or setting. The strongest activity occurs during full or new moons,
and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.