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Weather in Anglesey for September 2025

Your guide to Anglesey weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Anglesey has been nearly identical to the historical average, with a temperature of 16.9 °C (showing only a slight deviation of -0.2 °C).

  • The forecast for the next days in Anglesey predicts temperatures to be around 16 °C, close to the historical average.

  • In general, the average temperature in Anglesey at the beginning of September is 17.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.4 °C by the end of September.

    • Rain 🌧️

  • Anglesey in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 137.4 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
13
Dry days
Average rainy days
17
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/10°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Anglesey Weather September

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

Temperatures trend during September in Anglesey

See the weather trend as well as the moving average line

September weather in Anglesey day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 5.6 mm 5
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /12° 11.2 mm 4
3 Sept. Overcast
Overcast
 16° /11° 4.2 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 0.9 mm 4
5 Sept. Heavy rain at times
Heavy rain at times
 16° /10° 0.9 mm 4
6 Sept. Sunny
Sunny
 21° /12° 0 mm 6
7 Sept. Overcast
Overcast
 19° /13° 8.6 mm 4
8 Sept. Moderate rain at times
Moderate rain at times
 16° /11° 2.6 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 0.4 mm 4
10 Sept. Moderate rain at times
Moderate rain at times
 15° /9° 6 mm 4
11 Sept. Moderate rain
Moderate rain
 13° /11° 10.7 mm 0.9
12 Sept. Moderate rain
Moderate rain
 14° /11° 19 mm 0.9
13 Sept. Patchy rain possible
Patchy rain possible
 14° /11° 4.7 mm 0.8
14 Sept. Moderate rain
Moderate rain
 16° /11° 5.1 mm 0.4
15 Sept. Moderate rain
Moderate rain
 15° /12° 9 mm 0.4
16 Sept. Patchy rain possible
Patchy rain possible
 15° /13° 0.9 mm 3
17 Sept. Patchy rain possible
Patchy rain possible
 17° /13° 0.5 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
 17° /14° 0.1 mm 3
19 Sept. Cloudy
Cloudy
 18° /12° 0 mm 4
20 Sept. Partly cloudy
Partly cloudy
 21° /14° 0 mm 5
21 Sept. Patchy rain possible
Patchy rain possible
 15° /13° 0.3 mm 3
22 Sept. Partly cloudy
Partly cloudy
 14° /9° 0 mm 4
23 Sept. Sunny
Sunny
 16° /10° 0 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 16° /13° 0.5 mm 3
25 Sept. Heavy rain at times
Heavy rain at times
 12° /8° 12.2 mm 3
26 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 13° /9° 22.5 mm 3
27 Sept. Patchy rain possible
Patchy rain possible
 11° /8° 1.4 mm 3
28 Sept. Patchy rain possible
Patchy rain possible
 11° /8° 0.2 mm 3
29 Sept. Heavy rain at times
Heavy rain at times
 13° /8° 12.6 mm 3
30 Sept. Light rain
Light rain
 11° /10° 12.4 mm 3
Next
Important Notice
Our weather forecast for Anglesey 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 Anglesey forecast closer to your planned date for the most up-to-date weather information.
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Anglesey in September - FAQ

What are the expected maximum and minimum temperatures in Anglesey during September?
During September, expect a variety of temperatures with highs around 15° and lows near 10°, suitable for diverse activities and preferences.
How much rainfall should be expected in Anglesey during September?
Significant rainfall exceeding 137.4 mm is expected in Anglesey during September, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Anglesey during September?
The average wind speed in Anglesey during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Anglesey

Explore the daily rainfall trends and prepare for Angleseys September weather 💧

UV exposure in Anglesey during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Anglesey?

Get accurate weather forecasts for Anglesey, located at latitude 53.283 and longitude -4.333. Stay updated with localized weather information tailored for Anglesey.

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