Water Temperature of the Celtic Sea Near Sennen, England
Current Water Temperature
Measurement Time: Saturday, September 13, 2025, 4:00 PM 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: 74%
Feels Like: 15.7°C
Wind: W 13 mph
Wind Gusts: 18.1 mph
Precipitation: 0 in
Cloud Cover: 72%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Sat
H: 16°C
L: 15°C

Sun
H: 18°C
L: 15°C

Mon
H: 16°C
L: 15°C

Tue
H: 16°C
L: 14°C

Wed
H: 17°C
L: 16°C
Air Quality
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 74 μg/m3
Astronomical
Sun Transit: 1:20 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moon Transit: 6:00 AM
Moonset: 2:51 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Best Times for Fishing or Hunting
Major Periods
5:30 AM - 8:00 AM4:39 AM - 7:09 AM
Minor Periods
9:35 PM - 11:05 PM2:21 PM - 3:51 PM
Action Rating: 3 out of 5
Yellow Wind Warning issued for United Kingdom - East Midlands | East of England | London & South East England | North East England | North West England | South West England | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Mon September 15, 2025, 6:00 PM
Information on update: Warning updated to a higher likelihood of lower impacts and extended over a larger area of England and Wales. Strong west or southwesterly winds will arrive across coastal areas of southwest England and Wales during Sunday evening, then develop more widely inland during Monday morning. Gusts of 45-55 mph are expected widely inland, with gusts of 60-70 mph possible at times along exposed coasts and hills. Winds will only slowly ease from the west later in the afternoon and into Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
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 are on the coast, stay safe during stormy weather by being aware of large waves. Even from the shore large breaking waves can sweep you off your feet and out to sea. Take care if walking near cliffs; know your route and keep dogs on a lead. In an emergency, call 999 and ask for the Coastguard. 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 Wind Warning issued for United Kingdom - East Midlands | East of England | London & South East England | North East England | North West England | South West England | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Mon September 15, 2025, 6:00 PM
Information on update: Warning updated to a higher likelihood of lower impacts and extended over a larger area of England and Wales. Strong west or southwesterly winds will arrive across coastal areas of southwest England and Wales during Sunday evening, then develop more widely inland during Monday morning. Gusts of 45-55 mph are expected widely inland, with gusts of 60-70 mph possible at times along exposed coasts and hills. Winds will only slowly ease from the west later in the afternoon and into Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
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 are on the coast, stay safe during stormy weather by being aware of large waves. Even from the shore large breaking waves can sweep you off your feet and out to sea. Take care if walking near cliffs; know your route and keep dogs on a lead. In an emergency, call 999 and ask for the Coastguard. 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 Wind Warning issued for United Kingdom - East Midlands | East of England | London & South East England | North East England | North West England | South West England | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Mon September 15, 2025, 6:00 PM
Information on update: Warning updated to a higher likelihood of lower impacts and extended over a larger area of England and Wales. Strong west or southwesterly winds will arrive across coastal areas of southwest England and Wales during Sunday evening, then develop more widely inland during Monday morning. Gusts of 45-55 mph are expected widely inland, with gusts of 60-70 mph possible at times along exposed coasts and hills. Winds will only slowly ease from the west later in the afternoon and into Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
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 are on the coast, stay safe during stormy weather by being aware of large waves. Even from the shore large breaking waves can sweep you off your feet and out to sea. Take care if walking near cliffs; know your route and keep dogs on a lead. In an emergency, call 999 and ask for the Coastguard. 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 Wind Warning issued for United Kingdom - East Midlands | East of England | London & South East England | North East England | North West England | South West England | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Mon September 15, 2025, 6:00 PM
Information on update: Warning updated to a higher likelihood of lower impacts and extended over a larger area of England and Wales. Strong west or southwesterly winds will arrive across coastal areas of southwest England and Wales during Sunday evening, then develop more widely inland during Monday morning. Gusts of 45-55 mph are expected widely inland, with gusts of 60-70 mph possible at times along exposed coasts and hills. Winds will only slowly ease from the west later in the afternoon and into Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
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 are on the coast, stay safe during stormy weather by being aware of large waves. Even from the shore large breaking waves can sweep you off your feet and out to sea. Take care if walking near cliffs; know your route and keep dogs on a lead. In an emergency, call 999 and ask for the Coastguard. 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 Wind Warning issued for United Kingdom - East Midlands | East of England | London & South East England | North East England | North West England | South West England | Wales | West Midlands | Yorkshire & Humber
Effective: Thu January 1, 1970, 1:00 AM
Expires: Mon September 15, 2025, 6:00 PM
Information on update: Warning updated to a higher likelihood of lower impacts and extended over a larger area of England and Wales. Strong west or southwesterly winds will arrive across coastal areas of southwest England and Wales during Sunday evening, then develop more widely inland during Monday morning. Gusts of 45-55 mph are expected widely inland, with gusts of 60-70 mph possible at times along exposed coasts and hills. Winds will only slowly ease from the west later in the afternoon and into Monday evening. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
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 are on the coast, stay safe during stormy weather by being aware of large waves. Even from the shore large breaking waves can sweep you off your feet and out to sea. Take care if walking near cliffs; know your route and keep dogs on a lead. In an emergency, call 999 and ask for the Coastguard. 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: 15.5°C
Average Humidity: 72%
Wind: 27.7 mph
UV Index: 1
Air Quality
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 75.92 μg/m3
Astronomical
Sun Transit: 1:20 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moon Transit: 6:00 AM
Moonset: 2:51 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%
Best Times for Fishing or Hunting
Major Periods
5:30 AM - 8:00 AM4:39 AM - 7:09 AM
Minor Periods
9:35 PM - 11:05 PM2:21 PM - 3:51 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 16.5°C
Average Humidity: 88%
Wind: 38.9 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 67.92 μg/m3
Astronomical
Sun Transit: 1:19 PM
Sunset: 7:40 PM
Daylight: 12 hrs 41 mins
Moon Transit: 7:01 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%
Best Times for Fishing or Hunting
Major Periods
6:31 AM - 9:01 AM5:40 AM - 8:10 AM
Minor Periods
10:29 PM - 11:59 PM3:36 PM - 5:06 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 15.3°C
Average Humidity: 80%
Wind: 34.9 mph
UV Index: 0.9
Air Quality
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.04 μg/m3
Ozone: 73.96 μg/m3
Astronomical
Sun Transit: 1:19 PM
Sunset: 7:37 PM
Daylight: 12 hrs 37 mins
Moon Transit: 8:03 AM
Moonset: 5:03 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%
Best Times for Fishing or Hunting
Major Periods
7:33 AM - 10:03 AM6:42 AM - 9:12 AM
Minor Periods
12:00 AM - 12:00 AM4:33 PM - 6:03 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 15.1°C
Average Humidity: 79%
Wind: 25.9 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 0.65 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 81.36 μg/m3
Astronomical
Sun Transit: 1:19 PM
Sunset: 7:35 PM
Daylight: 12 hrs 33 mins
Moon Transit: 9:03 AM
Moonset: 5:43 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%
Best Times for Fishing or Hunting
Major Periods
8:33 AM - 11:03 AM7:42 AM - 10:12 AM
Minor Periods
5:13 PM - 6:43 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 16.4°C
Average Humidity: 89%
Wind: 37.1 mph
UV Index: 0.8
Air Quality
Nitrogen Dioxide: 0.81 μg/m3
Sulphur Dioxide: 0.21 μg/m3
Ozone: 78.15 μg/m3
Astronomical
Sun Transit: 1:18 PM
Sunset: 7:33 PM
Daylight: 12 hrs 30 mins
Moon Transit: 10:00 AM
Moonset: 6:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%
Best Times for Fishing or Hunting
Major Periods
8:38 AM - 11:08 AM9:30 AM - 12:00 AM
Minor Periods
5:41 PM - 7:11 PM12:57 AM - 2:27 AM
Action Rating: 3 out of 5