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United Kingdom weather

Weather in Derry for September 2027

Your guide to Derry weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Derry at the beginning of September is 17.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.8 °C by the end of September.

    • Rain 🌧️

  • Derry in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 99.3 mm.

    • More

  • Is September a good time to visit Derry? check out the best time to travel to Derry page.

  • ✨ Is September a good time to visit Derry? – Ask the AI Weatherman

Average dry days
12
Dry days
Average rainy days
18
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/8°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
85 %
Avg humidity

Derry Weather September

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

Temperatures trend during September in Derry

See the weather trend as well as the moving average line

September weather in Derry day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain
Light rain
 16° /10° 3.6 mm 3
2 Sept. Light rain
Light rain
 17° /10° 3.8 mm 3
3 Sept. Patchy rain possible
Patchy rain possible
 16° /10° 2.2 mm 4
4 Sept. Light rain shower
Light rain shower
 17° /9° 1.4 mm 4
5 Sept. Fog
Fog
 18° /9° 0.1 mm 4
6 Sept. Mist
Mist
 20° /11° 0.6 mm 4
7 Sept. Patchy rain possible
Patchy rain possible
 20° /11° 2.2 mm 4
8 Sept. Patchy rain possible
Patchy rain possible
 18° /10° 2.3 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 16° /9° 0.7 mm 3
10 Sept. Light rain
Light rain
 16° /10° 5.6 mm 3
11 Sept. Light rain
Light rain
 14° /8° 5 mm 3
12 Sept. Light rain
Light rain
 14° /7° 4.8 mm 3
13 Sept. Moderate rain
Moderate rain
 13° /6° 5.6 mm 2
14 Sept. Light rain
Light rain
 15° /9° 5.2 mm 3
15 Sept. Light rain
Light rain
 14° /9° 5 mm 3
16 Sept. Patchy rain possible
Patchy rain possible
 16° /8° 1.3 mm 3
17 Sept. Moderate rain
Moderate rain
 16° /9° 6.8 mm 3.5
18 Sept. Light rain
Light rain
 15° /9° 3.3 mm 3
19 Sept. Light rain
Light rain
 16° /9° 3.6 mm 3.4
20 Sept. Light rain
Light rain
 16° /8° 5.2 mm 3
21 Sept. Light rain
Light rain
 15° /8° 2 mm 3
22 Sept. Light rain
Light rain
 14° /8° 3.3 mm 3
23 Sept. Light rain
Light rain
 14° /6° 2.5 mm 3
24 Sept. Light rain
Light rain
 15° /8° 3.3 mm 3
25 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 1.5 mm 2.9
26 Sept. Light rain
Light rain
 14° /7° 4.4 mm 2.8
27 Sept. Light rain
Light rain
 12° /6° 7.1 mm 2
28 Sept. Light drizzle
Light drizzle
 13° /7° 1.5 mm 2.7
29 Sept. Patchy rain possible
Patchy rain possible
 15° /8° 1.4 mm 2.6
30 Sept. Light rain
Light rain
 14° /9° 4 mm 2.5
Next
Important Notice
Our weather forecast for Derry 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 Derry forecast closer to your planned date for the most up-to-date weather information.
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Derry in September - FAQ

What are the expected maximum and minimum temperatures in Derry during September?
During September, expect a variety of temperatures with highs around 15° and lows near 8°, suitable for diverse activities and preferences.

How much rainfall should be expected in Derry during September?
Moderate rainfall is anticipated in Derry during September, with a total of 99.3 mm spread over approximately 18 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Derry during September?
The average wind speed in Derry during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Derry

Explore the daily rainfall trends and prepare for Derrys September weather 💧
Typically, Derry has 18 rainy days in September with a total of 99.3 mm of rainfall.
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Location coordinates Where is Derry?

Get accurate weather forecasts for Derry, located at latitude 54.998 and longitude -7.309. Stay updated with localized weather information tailored for Derry.

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