Water Temperature of the Celtic Sea Near Sennen, England
Current Water Temperature
Measurement Time: Friday, June 13, 2025, 8:00 AM BST
Temperature Locations
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Local Points of Interest
Isles of Scilly; Celtic SeaSponsored Content
Station Name: Sevenstones Lightship
Station Type: Fixed
Data Source: National Data Buoy Center
Elevation Above Sea Level: 0 feet / 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

Humidity: 94%
Feels Like: 15.2°C
Wind: SSE 14.1 mph
Wind Gusts: 21.3 mph
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 6 mi
UV Index: 4.5
Five Day Weather Forecast

Fri
H: 16°C
L: 13°C

Sat
H: 15°C
L: 15°C

Sun
H: 15°C
L: 15°C

Mon
H: 16°C
L: 15°C

Tue
H: 17°C
L: 15°C
Air Quality
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 73 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 9:35 PM
Daylight: 16 hrs 21 mins
Moon Transit: 2:54 AM
Moonset: 6:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
2:24 AM - 4:54 AM1:33 AM - 4:03 AM
Minor Periods
5:58 AM - 7:28 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Yellow Thunderstorm Warning issued for United Kingdom - London & South East England | South West England | Wales | West Midlands
Effective: Thu January 1, 1970, 1:00 AM
Expires: Fri June 13, 2025, 11:59 PM
Areas of heavy rain and some thunderstorms are likely to move northwards into southwest England and Wales on Friday evening. Rainfall amounts and thunderstorm activity will vary across the area however there is the potential for 20 mm of rain to fall in an hour and 30-40 mm to fall in 3 hours or less in a few places. As well as this there is a small chance of frequent lightning and hail within the rain area as additional hazards. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. 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. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. 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.
Yellow Thunderstorm Warning issued for United Kingdom - East Midlands | North East England | North West England | South West England | Strathclyde | SW Scotland, Lothian Borders | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Sat June 14, 2025, 6:00 PM
Areas of heavy rain and some thunderstorms will move northwards across areas of England and Wales early on Saturday, reaching parts of southern Scotland later in the morning. After this first batch of rain moves north, further heavy showers and thunderstorms are likely to break out in its wake. Rainfall will vary across the warning area and some places will avoid the heaviest rain. However, 10-20 mm of rain is likely to fall in some places in an hour or less, with potential for 30-50 mm to accumulate in a few hours. Event rainfall could reach 60-80 mm in some locations. Strong gusts and hail may also accompany some of the thunderstorms. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. 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. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. 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.
Yellow Thunderstorm Warning issued for United Kingdom - London & South East England | South West England | Wales | West Midlands
Effective: Thu January 1, 1970, 1:00 AM
Expires: Fri June 13, 2025, 11:59 PM
Areas of heavy rain and some thunderstorms are likely to move northwards into southwest England and Wales on Friday evening. Rainfall amounts and thunderstorm activity will vary across the area however there is the potential for 20 mm of rain to fall in an hour and 30-40 mm to fall in 3 hours or less in a few places. As well as this there is a small chance of frequent lightning and hail within the rain area as additional hazards. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. 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. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. 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.
Yellow Thunderstorm Warning issued for United Kingdom - London & South East England | South West England | Wales | West Midlands
Effective: Thu January 1, 1970, 1:00 AM
Expires: Fri June 13, 2025, 11:59 PM
Areas of heavy rain and some thunderstorms are likely to move northwards into southwest England and Wales on Friday evening. Rainfall amounts and thunderstorm activity will vary across the area however there is the potential for 20 mm of rain to fall in an hour and 30-40 mm to fall in 3 hours or less in a few places. As well as this there is a small chance of frequent lightning and hail within the rain area as additional hazards. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. 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. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. 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.
Yellow Thunderstorm Warning issued for United Kingdom - London & South East England | South West England | Wales | West Midlands
Effective: Thu January 1, 1970, 1:00 AM
Expires: Fri June 13, 2025, 11:59 PM
Areas of heavy rain and some thunderstorms are likely to move northwards into southwest England and Wales on Friday evening. Rainfall amounts and thunderstorm activity will vary across the area however there is the potential for 20 mm of rain to fall in an hour and 30-40 mm to fall in 3 hours or less in a few places. As well as this there is a small chance of frequent lightning and hail within the rain area as additional hazards. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Consider if your location is at risk of flash flooding. If so, consider preparing a flood plan and an emergency flood kit. Prepare to protect your property and people from injury. Before gusty winds arrive, check to ensure moveable objects or temporary structures are well secured. Items include; bins, garden furniture, trampolines, tents, gazebos, sheds, and fences. 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. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. If you find yourself outside and hear thunder, protect yourself by finding a safe enclosed shelter (such as a car). Do not shelter under or near trees, or other structures which may be struck by lightning. If you are on an elevated area move to lower ground. 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
Average Temperature: 14.8°C
Average Humidity: 91%
Wind: 21.7 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 2.72 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 74.36 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 9:35 PM
Daylight: 16 hrs 21 mins
Moon Transit: 2:54 AM
Moonset: 6:28 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
2:24 AM - 4:54 AM1:33 AM - 4:03 AM
Minor Periods
5:58 AM - 7:28 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 14.9°C
Average Humidity: 87%
Wind: 16.1 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 71 μg/m3
Astronomical
Sun Transit: 1:24 PM
Sunset: 9:35 PM
Daylight: 16 hrs 21 mins
Moon Transit: 3:47 AM
Moonset: 7:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 81.2%
Best Times for Fishing or Hunting
Major Periods
3:17 AM - 5:47 AM2:26 AM - 4:56 AM
Minor Periods
7:11 AM - 8:41 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 14.9°C
Average Humidity: 87%
Wind: 17.4 mph
UV Index: 1.9
Air Quality
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 68.76 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 9:36 PM
Daylight: 16 hrs 22 mins
Moon Transit: 4:38 AM
Moonset: 9:00 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.7%
Best Times for Fishing or Hunting
Major Periods
4:08 AM - 6:38 AM3:18 AM - 5:48 AM
Minor Periods
8:30 AM - 10:00 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 15.4°C
Average Humidity: 80%
Wind: 10.1 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 76.54 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 9:36 PM
Daylight: 16 hrs 22 mins
Moon Transit: 5:28 AM
Moonset: 10:20 AM
Moon Phase: Waning Gibbous
Moon Illumination: 61.0%
Best Times for Fishing or Hunting
Major Periods
4:58 AM - 7:28 AM4:07 AM - 6:37 AM
Minor Periods
9:50 AM - 11:20 AM12:18 AM - 1:48 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 16°C
Average Humidity: 75%
Wind: 7.8 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:25 PM
Sunset: 9:37 PM
Daylight: 16 hrs 23 mins
Moon Transit: 6:15 AM
Moonset: 11:40 AM
Moon Phase: Last Quarter
Moon Illumination: 49.7%
Best Times for Fishing or Hunting
Major Periods
5:45 AM - 8:15 AM4:54 AM - 7:24 AM
Minor Periods
11:10 AM - 12:40 AM12:34 AM - 2:04 AM
Action Rating: 3 out of 5