Water Temperature of the Celtic Sea Near Sennen, England

Current Water Temperature

15.9°C

Measurement Time: Saturday, September 13, 2025, 4:00 PM BST

Temperature Locations

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Local Points of Interest

Isles of Scilly; Celtic Sea

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Celtic Sea

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

15.6°C
Patchy rain nearby
Conditions: Patchy rain nearby
Humidity: 74%
Feels Like: 15.7°C
Wind: W 13 mph
Wind Gusts: 18.1 mph
Pressure: 29.9 in
Precipitation: 0 in
Cloud Cover: 72%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Sat
H: 16°C
L: 15°C
Moderate rain
Sun
H: 18°C
L: 15°C
Patchy rain nearby
Mon
H: 16°C
L: 15°C
Moderate rain
Tue
H: 16°C
L: 14°C
Moderate rain
Wed
H: 17°C
L: 16°C

Air Quality

AQI: 2 - Moderate
PM2.5: 7.59 μg/m3
PM10: 31.64 μg/m3
Carbon Monoxide: 249.75 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:20 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moonrise: 10:05 PM
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 AM
4:39 AM - 7:09 AM

Minor Periods

9:35 PM - 11:05 PM
2:21 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.


Saturday, September 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 15.5°C
Average Humidity: 72%
Chance of Rain: 99%
Wind: 27.7 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 8.56 μg/m3
PM10: 36.4 μg/m3
Carbon Monoxide: 251.9 μg/m3
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 75.92 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:20 PM
Sunset: 7:42 PM
Daylight: 12 hrs 44 mins
Moonrise: 10:05 PM
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 AM
4:39 AM - 7:09 AM

Minor Periods

9:35 PM - 11:05 PM
2:21 PM - 3:51 PM

Action Rating: 3 out of 5

Sunday, September 14, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 16.5°C
Average Humidity: 88%
Chance of Rain: 91%
Wind: 38.9 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 10.27 μg/m3
PM10: 38.15 μg/m3
Carbon Monoxide: 229.92 μg/m3
Nitrogen Dioxide: 1.57 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 67.92 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:19 PM
Sunset: 7:40 PM
Daylight: 12 hrs 41 mins
Moonrise: 10:59 PM
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 AM
5:40 AM - 8:10 AM

Minor Periods

10:29 PM - 11:59 PM
3:36 PM - 5:06 PM

Action Rating: 3 out of 5

Monday, September 15, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 15.3°C
Average Humidity: 80%
Chance of Rain: 86%
Wind: 34.9 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 9.75 μg/m3
PM10: 42.82 μg/m3
Carbon Monoxide: 247.38 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.04 μg/m3
Ozone: 73.96 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:19 PM
Sunset: 7:37 PM
Daylight: 12 hrs 37 mins
Moonrise: 12:09 PM
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 AM
6:42 AM - 9:12 AM

Minor Periods

12:00 AM - 12:00 AM
4:33 PM - 6:03 PM

Action Rating: 3 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 15.1°C
Average Humidity: 79%
Chance of Rain: 89%
Wind: 25.9 mph
UV Index: 0.3

Air Quality

AQI: 2 - Moderate
PM2.5: 16.3 μg/m3
PM10: 27.37 μg/m3
Carbon Monoxide: 242.13 μg/m3
Nitrogen Dioxide: 0.65 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 81.36 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:19 PM
Sunset: 7:35 PM
Daylight: 12 hrs 33 mins
Moonrise: 12:09 AM
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 AM
7:42 AM - 10:12 AM

Minor Periods

5:13 PM - 6:43 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 16.4°C
Average Humidity: 89%
Chance of Rain: 78%
Wind: 37.1 mph
UV Index: 0.8

Air Quality

AQI: 2 - Moderate
PM2.5: 17.39 μg/m3
PM10: 27.48 μg/m3
Carbon Monoxide: 228.26 μg/m3
Nitrogen Dioxide: 0.81 μg/m3
Sulphur Dioxide: 0.21 μg/m3
Ozone: 78.15 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 1:18 PM
Sunset: 7:33 PM
Daylight: 12 hrs 30 mins
Moonrise: 1:27 AM
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 AM
9:30 AM - 12:00 AM

Minor Periods

5:41 PM - 7:11 PM
12:57 AM - 2:27 AM

Action Rating: 3 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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