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Eilean Siar (Stornoway)
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Weather in Eilean Siar for September 2025

Your guide to Eilean Siar weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Eilean Siar has been nearly identical to the historical average, with a temperature of 14.2 °C (showing only a slight deviation of 0.1 °C).

  • The forecast for the next days in Eilean Siar predicts temperatures to be around 13 °C, close to the historical average.

  • In general, the average temperature in Eilean Siar at the beginning of September is 15.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 13.6 °C by the end of September.

    • Rain 🌧️

  • The climate of Eilean Siar in September is notably wet, with an average of 13 rainy days, and a total of 63.7 mm of precipitation.

    • More

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Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/9°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Eilean Siar Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Overcast
16°
2
Patchy rain possible
15°
3
Patchy rain possible
14°
4
Cloudy
15°
5
Partly cloudy
15°
6
Sunny
18°
7
Overcast
16°
8
Patchy rain possible
14°
9
Heavy rain at times
14°
10
Patchy rain possible
12°
11
Patchy rain possible
13°
12
Patchy rain possible
12°
13
Patchy rain possible
12°
14
Heavy rain at times
14°
15
Moderate or heavy rain shower
13°
16
Patchy rain possible
13°
17
Overcast
16°
18
Patchy rain possible
15°
19
Moderate rain
14°
20
Patchy rain possible
11°
21
Patchy rain possible
11°
22
Patchy rain possible
12°
23
Patchy rain possible
12°
24
Patchy rain possible
13°
25
Patchy rain possible
14°
26
Partly cloudy
15°
27
Cloudy
14°
28
Partly cloudy
14°
29
Partly cloudy
13°
30
Patchy rain possible
12°

Temperatures trend during September in Eilean Siar

See the weather trend as well as the moving average line

September weather in Eilean Siar day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Overcast
Overcast
 16° /12° 2 mm 4
2 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 1.3 mm 4
3 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 0.6 mm 4
4 Sept. Cloudy
Cloudy
 15° /9° 0.2 mm 4
5 Sept. Partly cloudy
Partly cloudy
 15° /10° 0.2 mm 4
6 Sept. Sunny
Sunny
 18° /12° 0.1 mm 5
7 Sept. Overcast
Overcast
 16° /12° 3.5 mm 4
8 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 0.5 mm 3
9 Sept. Heavy rain at times
Heavy rain at times
 14° /10° 2.1 mm 4
10 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 5.2 mm 3
11 Sept. Patchy rain possible
Patchy rain possible
 13° /8° 3.2 mm 3
12 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 4 mm 3
13 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 3.4 mm 3
14 Sept. Heavy rain at times
Heavy rain at times
 14° /9° 8 mm 3
15 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /10° 10.3 mm 3
16 Sept. Patchy rain possible
Patchy rain possible
 13° /9° 1.5 mm 3
17 Sept. Overcast
Overcast
 16° /13° 0 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
 15° /12° 2.2 mm 0.4
19 Sept. Moderate rain
Moderate rain
 14° /10° 5.6 mm 0.6
20 Sept. Patchy rain possible
Patchy rain possible
 11° /9° 2.5 mm 0.3
21 Sept. Patchy rain possible
Patchy rain possible
 11° /8° 1 mm 0.2
22 Sept. Patchy rain possible
Patchy rain possible
 12° /7° 1.5 mm 0.1
23 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.2 mm 2
24 Sept. Patchy rain possible
Patchy rain possible
 13° /8° 0.2 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 0.6 mm 3
26 Sept. Partly cloudy
Partly cloudy
 15° /10° 0 mm 4
27 Sept. Cloudy
Cloudy
 14° /11° 0 mm 3
28 Sept. Partly cloudy
Partly cloudy
 14° /10° 0 mm 4
29 Sept. Partly cloudy
Partly cloudy
 13° /10° 0 mm 4
30 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.1 mm 3
Next
Important Notice
Our weather forecast for Eilean Siar 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 Eilean Siar forecast closer to your planned date for the most up-to-date weather information.
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Eilean Siar in September - FAQ

What are the expected maximum and minimum temperatures in Eilean Siar during September?
During September, expect a variety of temperatures with highs around 13° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Eilean Siar during September?
Moderate rainfall is anticipated in Eilean Siar during September, with a total of 63.7 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Eilean Siar during September?
The average wind speed in Eilean Siar during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Eilean Siar

Explore the daily rainfall trends and prepare for Eilean Siars September weather 💧
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Location coordinates Where is Eilean Siar?

Get accurate weather forecasts for Eilean Siar, located at latitude 58.209 and longitude -6.386. Stay updated with localized weather information tailored for Eilean Siar.

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