Water Temperature of the Celtic Sea Near Sennen, England

Current Water Temperature

10.8°C

Measurement Time: Thursday, January 29, 2026, 4:00 PM GMT

Temperature Locations

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Local Points of Interest

Isles of Scilly; Celtic Sea

Celtic Sea

Station Name: Sevenstones Lightship
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 meters

Nearest Address:
Offshore
Sennen, GB-ENG

GPS Coordinates: 50.102, -6.1

Nearby Water Temperatures

Atlantic Ocean, Brest, FR-BFC (332.5 km)
English Channel, Brighton, GB-ENG (434.8 km)

Weather Near Sennen, England

Current Weather

11.2°C
Light rain shower
Light rain shower
7.9°C
10.6°C
87%
SW 34.9 kph
50.4 kph
7°C
7.5°C
0.35 mm
25%
10 km
983 mbar
0

Five Day Weather Forecast

Moderate rain
Thu
H: 11°C
L: 10°C
Moderate rain
Fri
H: 10°C
L: 8°C
Patchy rain nearby
Sat
H: 10°C
L: 9°C
Patchy rain nearby
Sun
H: 11°C
L: 9°C
Moderate rain
Mon
H: 11°C
L: 10°C

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 137.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 8:03 AM
Sun Transit: 12:37 AM
Sunset: 5:13 PM
Daylight: 9 hrs 10 mins
Moonrise: 12:43 AM
Moon Transit: 9:45 PM
Moonset: 5:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

8:24 PM - 10:54 PM
9:15 PM - 11:45 PM

Minor Periods

12:13 AM - 1:43 PM
5:12 AM - 6:42 AM

Action Rating: 2 out of 5

Further rain on Thursday afternoon to early Friday is expected to lead to some transport disruption and exacerbate flooding in places: UPDATED

Effective: Thu January 1, 1970, 1:00 AM
Expires: Fri January 30, 2026, 3:00 AM

Information on update: Rainfall amounts are expected to be slightly lower and the impact level has been decreased. The warning end time has been extended slightly later whilst the eastern boundary has also been adjusted. A band of rain will arrive across Cornwall on Thursday afternoon then move northeast across the warning area through the evening and clearing during early Friday. The rain is only likely to last for a few hours in any one location but will be at heavy at times. A further 10-15 mm of rain is expected fairly widely, but some locations, most likely in the south of the area, could see 20-25 mm. The likelihood of impacts from these rainfall amounts is higher than normal due to saturated ground and ongoing flooding following Storm Chandra. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.


Further rain on Thursday afternoon and evening is expected to lead to some transport disruption and exacerbate flooding in places: UPDATED

Effective: Thu January 1, 1970, 1:00 AM
Expires: Thu January 29, 2026, 11:59 PM

Information on update: Warning end time brought forward to end of Thursday, and area slightly reduced in the east. A band of rain will arrive across Cornwall on Thursday afternoon then move northeast across the warning area through the evening. The rain is only likely to last for a few hours in any one location but will be at heavy at times. A further 10-15 mm of rain is expected fairly widely, but some locations, most likely in the south of the area, could see 20-25 mm. The likelihood of impacts from these rainfall amounts is higher than normal due to saturated ground and ongoing flooding following Storm Chandra. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.


Further rainfall may lead to some flooding and disruption.

Effective: Thu January 1, 1970, 1:00 AM
Expires: Sat January 31, 2026, 6:00 AM

Outbreaks of rain, heavy at times, are expected to arrive across Cornwall on Friday morning and move northeastwards across other parts of southwest England by afternoon, followed by showers during Friday evening and overnight into Saturday morning. 10 to 20 mm rainfall is likely widely, with up to 30 mm possible over the moors and perhaps west Cornwall. Falling on saturated ground, this may lead to some flooding and disruption. Strong winds are also likely in places. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.


Thursday, January 29, 2026

Weather Forecast

Moderate rain
10.8°C
9.5°C
10.1°C
80%
9.43 mm
99%
0%
43.2 kph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 15.15 μg/m3
Carbon Monoxide: 139.97 μg/m3
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 85.44 μg/m3

Astronomical

Sunrise: 8:03 AM
Sun Transit: 12:37 AM
Sunset: 5:13 PM
Daylight: 9 hrs 10 mins
Moonrise: 12:43 AM
Moon Transit: 9:45 PM
Moonset: 5:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

8:24 PM - 10:54 PM
9:15 PM - 11:45 PM

Minor Periods

12:13 AM - 1:43 PM
5:12 AM - 6:42 AM

Action Rating: 2 out of 5

Friday, January 30, 2026

Weather Forecast

Moderate rain
10.1°C
8.2°C
9.6°C
75%
5.16 mm
94%
0%
55.8 kph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 16.48 μg/m3
Carbon Monoxide: 139.61 μg/m3
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 86.2 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 12:37 AM
Sunset: 5:15 PM
Daylight: 9 hrs 14 mins
Moonrise: 1:53 PM
Moon Transit: 10:49 PM
Moonset: 6:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

9:28 PM - 11:58 PM
12:00 AM - 12:00 AM

Minor Periods

1:23 PM - 2:53 PM
6:16 AM - 7:46 AM

Action Rating: 3 out of 5

Saturday, January 31, 2026

Weather Forecast

Patchy rain nearby
10.4°C
9.1°C
10°C
79%
1.26 mm
87%
0%
36.4 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.84 μg/m3
PM10: 13.08 μg/m3
Carbon Monoxide: 144.18 μg/m3
Nitrogen Dioxide: 1.23 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 86.43 μg/m3

Astronomical

Sunrise: 8:00 AM
Sun Transit: 12:37 AM
Sunset: 5:16 PM
Daylight: 9 hrs 17 mins
Moonrise: 3:17 PM
Moon Transit: 11:50 PM
Moonset: 7:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

2:47 PM - 4:17 PM
7:02 AM - 8:32 AM

Action Rating: 2 out of 5

Sunday, February 1, 2026

Weather Forecast

Patchy rain nearby
10.6°C
9.2°C
10°C
87%
0.77 mm
89%
0%
33.8 kph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.53 μg/m3
PM10: 11.95 μg/m3
Carbon Monoxide: 136.9 μg/m3
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 100.16 μg/m3

Astronomical

Sunrise: 7:58 AM
Sun Transit: 12:37 AM
Sunset: 5:18 PM
Daylight: 9 hrs 20 mins
Moonrise: 4:45 PM
Moon Transit: 12:00 AM
Moonset: 8:04 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:15 PM - 5:45 PM
7:34 AM - 9:04 AM

Action Rating: 5 out of 5

Monday, February 2, 2026

Weather Forecast

Moderate rain
10.7°C
9.7°C
10.3°C
83%
10.52 mm
87%
0%
56.2 kph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.69 μg/m3
PM10: 11.63 μg/m3
Carbon Monoxide: 133.48 μg/m3
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 106.08 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 12:38 AM
Sunset: 5:20 PM
Daylight: 9 hrs 23 mins
Moonrise: 6:11 PM
Moon Transit: 12:46 AM
Moonset: 8:27 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 AM
12:00 AM - 12:00 AM

Minor Periods

5:41 PM - 7:11 PM
7:57 AM - 9:27 AM

Action Rating: 5 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.

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