Shetland Islands (Lerwick)
September
Weather in Shetland Islands for September 2025
Your guide to Shetland Islands weather in September - trends and predictions
In general, the average temperature in Shetland Islands at the beginning of September is 13.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.1 °C by the end of September.
Shetland Islands in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 71 mm.
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Temperatures
Rain 🌧️
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11
Dry days
19
Rainy days
0
Snow days
12°/10°
Temperatures
29 km/h
Avg max wind
81 %
Avg humidity
Shetland Islands in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2 14° | 3  12° | 4 13° | 5 14° | 6 15° | 7  15° |
| 8 14° | 9 11° | 10 10° | 11 10° | 12 9° | 13 11° | 14  13° |
| 15 12° | 16 12° | 17 13° | 18  13° | 19 14° | 20 13° | 21 12° |
| 22 10° | 23 9° | 24 9° | 25 8° | 26 10° | 27 8° | 28 7° |
| 29 11° | 30 11° |
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Temperatures trend during September in Shetland Islands
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Overcast | 13° /11° | 0 mm | 3 | |
| 2 Sept. | Overcast | 14° /12° | 3 mm | 3 | |
| 3 Sept. | Light rain shower | 12° /11° | 3.9 mm | 3 | |
| 4 Sept. | Patchy rain possible | 13° /11° | 0.3 mm | 3 | |
| 5 Sept. | Patchy rain possible | 14° /12° | 0.3 mm | 3 | |
| 6 Sept. | Overcast | 15° /12° | 0 mm | 4 | |
| 7 Sept. | Partly cloudy | 15° /12° | 0 mm | 5 | |
| 8 Sept. | Patchy rain possible | 14° /11° | 0 mm | 3 | |
| 9 Sept. | Patchy rain possible | 11° /10° | 0.7 mm | 3 | |
| 10 Sept. | Light rain shower | 10° /8° | 31.7 mm | 3 | |
| 11 Sept. | Light rain shower | 10° /8° | 5.9 mm | 3 | |
| 12 Sept. | Light rain shower | 9° /7° | 2.7 mm | 2 | |
| 13 Sept. | Light rain shower | 11° /9° | 1.8 mm | 3 | |
| 14 Sept. | Light rain | 13° /10° | 2.9 mm | 3 | |
| 15 Sept. | Light rain shower | 12° /10° | 3.2 mm | 3 | |
| 16 Sept. | Patchy rain possible | 12° /9° | 0.2 mm | 3 | |
| 17 Sept. | Patchy rain possible | 13° /12° | 0.5 mm | 3 | |
| 18 Sept. | Sunny | 13° /12° | 0 mm | 4 | |
| 19 Sept. | Sunny | 14° /12° | 0 mm | 4 | |
| 20 Sept. | Sunny | 13° /11° | 0 mm | 4 | |
| 21 Sept. | Patchy rain possible | 12° /10° | 0 mm | 3 | |
| 22 Sept. | Patchy rain possible | 10° /9° | 0.2 mm | 3 | |
| 23 Sept. | Light rain shower | 9° /8° | 3.2 mm | 2 | |
| 24 Sept. | Light rain shower | 9° /7° | 2.1 mm | 2 | |
| 25 Sept. | Light rain shower | 8° /6° | 1.8 mm | 2 | |
| 26 Sept. | Light rain shower | 10° /6° | 1.5 mm | 2 | |
| 27 Sept. | Light rain shower | 8° /6° | 1.5 mm | 2 | |
| 28 Sept. | Light rain shower | 7° /6° | 2.2 mm | 2 | |
| 29 Sept. | Light rain shower | 11° /7° | 0.8 mm | 3 | |
| 30 Sept. | Patchy rain possible | 11° /10° | 0.7 mm | 3 | |
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Important Notice
Our weather forecast for Shetland Islands in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Shetland Islands forecast closer to your planned date for the most up-to-date weather information.
Shetland Islands in September - FAQ
What are the expected maximum and minimum temperatures in Shetland Islands during September?
During September, expect a variety of temperatures with highs around 12° and lows near 10°, suitable for diverse activities and preferences.
How much rainfall should be expected in Shetland Islands during September?
Moderate rainfall is anticipated in Shetland Islands during September, with a total of 71 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Shetland Islands during September?
The average wind speed in Shetland Islands during September is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Shetland Islands
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