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Sea Temperature in St Mary's Island in September
Complete information on the sea temperature range in the North Sea in St Mary's Island in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in St Mary's Island. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in St Mary's Island in September
57°F
MINIMUN
64°F
AVERAGE
70°F
MAXIMUM
Historical Data of Water Temperature in September in St Mary's Island
Water Temperature Chart for North Sea in St Mary's Island in September
Sea Temperature Table in St Mary's Island in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 61°C | 61°C | 64°C | 63°C |
| Sep 2 | 61°C | 61°C | 64°C | 63°C |
| Sep 3 | 61°C | 61°C | 64°C | 63°C |
| Sep 4 | 61°C | 64°C | 64°C | 64°C |
| Sep 5 | 63°C | 64°C | 64°C | 64°C |
| Sep 6 | 63°C | 61°C | 64°C | 63°C |
| Sep 7 | 59°C | 61°C | 64°C | 62°C |
| Sep 8 | 59°C | 64°C | 64°C | 63°C |
| Sep 9 | 59°C | 61°C | 64°C | 63°C |
| Sep 10 | 59°C | 64°C | 64°C | 64°C |
| Sep 11 | 61°C | 66°C | 64°C | 64°C |
| Sep 12 | 61°C | 63°C | 63°C | 63°C |
| Sep 13 | 61°C | 64°C | 63°C | 63°C |
| Sep 14 | 61°C | 64°C | 63°C | 63°C |
| Sep 15 | 59°C | 64°C | 63°C | 62°C |
| Sep 16 | 59°C | 63°C | 63°C | 62°C |
| Sep 17 | 57°C | 61°C | 63°C | 60°C |
| Sep 18 | 66°C | 66°C | 63°C | 64°C |
| Sep 19 | 66°C | 64°C | 63°C | 64°C |
| Sep 20 | 64°C | 64°C | 63°C | 64°C |
| Sep 21 | 66°C | 66°C | 63°C | 64°C |
| Sep 22 | 66°C | 66°C | 63°C | 64°C |
| Sep 23 | 64°C | 64°C | 63°C | 64°C |
| Sep 24 | 64°C | 61°C | 63°C | 63°C |
| Sep 25 | 66°C | 64°C | 63°C | 64°C |
| Sep 26 | 64°C | 64°C | 63°C | 64°C |
| Sep 27 | 64°C | 66°C | 63°C | 64°C |
| Sep 28 | 63°C | 66°C | 63°C | 64°C |
| Sep 29 | 64°C | 66°C | 63°C | 64°C |
St Mary's Island Climate and Swimming Opportunities in September
66°F
Average Day Air Temperature
52°F
Average Night Air Temperature
2 in
Precipitation Amount per Month
11 days
Number of Rainy Days
13 hrs
Daylight
per Day
5 hrs
Sunshine
per Day
9 mph
Average Wind Speed
84%
Average
humidity
St Mary's Island lies within the England in United Kingdom. The average daytime temperature in St Mary's Island in September is 19°C (65°F), while the nighttime average is 11°C (52°F). There are typically 11 rainy days during the month, with a total precipitation of 51 mm (2.0 inches). The daylight duration in September in St Mary's Island is 13 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 15 km/h (9 mph), and the humidity level is around 84%.
The water temperature in St Mary's Island in September ranges from 15°C to 18°C (59°F to 64°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 17°C (63°F) by mid-September and reaching 18°C (64°F) in the last ten days. Overall, the average sea temperature in St Mary's Island for September is 17°C (63°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in St Mary's Island
What is the sea temperature in St Mary's Island in September?
The water temperature in the North Sea in St Mary's Island in September ranges from 15°C to 18°C (59°F to 64°F).
Is it possible to swim in the North Sea in St Mary's Island in September?
The average sea temperature in St Mary's Island in September is 17°C (63°F), and the air temperature is 19°C (65°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.