Weather in September
Temperature
In September, the average high-temperature registers at a fresh 12.8°C (55°F), nearly identical to August's 14.5°C (58.1°F). Shetland's nighttime temperature in September shows a minor descent, with a steady average of 8.7°C (47.7°F).Rainfall
In Shetland, United Kingdom, in September, during 16.7 rainfall days, 106mm (4.17") of precipitation is typically accumulated. Throughout the year, there are 201.6 rainfall days, and 1257mm (49.49") of precipitation is accumulated.Sea temperature
In Shetland, in September, the average water temperature is 12.7°C (54.9°F).Note: With the appropriate swimsuit, one can swim in 12.7°C (54.9°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
In Shetland, the average length of the day in September is 12h and 52min.On the first day of September in Shetland, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:39 pm BST.
Sunshine
The average sunshine in September is 3.4h.Frequently asked questions
What is the temperature in September in Shetland?
How much does it rain in Shetland in September?
What is the water temperature in September in Shetland?
What is the average length of the day in September in Shetland?
What time are sunrise and sunset in September in Shetland?
How many hours of sunshine does Shetland have in September?
Average temperature in September
Shetland, United Kingdom
- Average high temperature in September: 12.8°C
The warmest month (with the highest average high temperature) is August (14.5°C).
The month with the lowest average high temperature is February (5.5°C).
- Average low temperature in September: 8.7°C
The month with the highest average low temperature is August (10.2°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).
Average rainfall in September
Shetland, United Kingdom
- Average rainfall in September: 106.3mm
The wettest month (with the highest rainfall) is November (146mm).
The driest month (with the least rainfall) is May (53.4mm).
Average rainfall days in September
Shetland, United Kingdom
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is December (21.8 days).
The month with the least rainy days is May (10.8 days).
Average sea temperature in September
Shetland, United Kingdom
- Average sea temperature in September: 12.7°C
The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (7.8°C).
Average daylight in September /
Average sunshine in September
Shetland, United Kingdom
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 3h and 2min
The month with the most sunshine is May (Average sunshine: 5h and 48min).
The month with the least sunshine is December (Average sunshine: 0h and 36min).
Shetland, United Kingdom
Weather forecast for your location
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