Water Temperature of the Celtic Sea Near Sennen, England
Current Water Temperature
Measurement Time: Thursday, January 29, 2026, 4:00 PM GMT
Temperature Locations
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Local Points of Interest
Isles of Scilly; Celtic SeaStation 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

Five Day Weather Forecast

Thu
H: 11°C
L: 10°C

Fri
H: 10°C
L: 8°C

Sat
H: 10°C
L: 9°C

Sun
H: 11°C
L: 9°C

Mon
H: 11°C
L: 10°C
Air Quality
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 91 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 5:13 PM
Daylight: 9 hrs 10 mins
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 PM9:15 PM - 11:45 PM
Minor Periods
12:13 AM - 1:43 PM5:12 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.
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 85.44 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 5:13 PM
Daylight: 9 hrs 10 mins
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 PM9:15 PM - 11:45 PM
Minor Periods
12:13 AM - 1:43 PM5:12 AM - 6:42 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.37 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 86.2 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 5:15 PM
Daylight: 9 hrs 14 mins
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 PM12:00 AM - 12:00 AM
Minor Periods
1:23 PM - 2:53 PM6:16 AM - 7:46 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.23 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 86.43 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 5:16 PM
Daylight: 9 hrs 17 mins
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 AM12:00 AM - 12:00 AM
Minor Periods
2:47 PM - 4:17 PM7:02 AM - 8:32 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 100.16 μg/m3
Astronomical
Sun Transit: 12:37 AM
Sunset: 5:18 PM
Daylight: 9 hrs 20 mins
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 AM12:00 AM - 12:00 AM
Minor Periods
4:15 PM - 5:45 PM7:34 AM - 9:04 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.9 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 106.08 μg/m3
Astronomical
Sun Transit: 12:38 AM
Sunset: 5:20 PM
Daylight: 9 hrs 23 mins
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 AM12:00 AM - 12:00 AM
Minor Periods
5:41 PM - 7:11 PM7:57 AM - 9:27 AM
Action Rating: 5 out of 5
