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Weather in Rhondda for September 2026

Your guide to Rhondda weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Rhondda is slightly cooler than the historical average by 1.1 °C.

  • The forecast for the next days in Rhondda predicts temperatures to be around 19 °C, close to the historical average.

  • In general, the average temperature in Rhondda at the beginning of September is 18.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21 °C by the end of September.

    • Rain 🌧️

  • Rhondda experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 128.5 mm.

    • More

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

Average dry days
1
Dry days
Average rainy days
29
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/9°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
85 %
Avg humidity

Rhondda Weather September

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

Temperatures trend during September in Rhondda

See the weather trend as well as the moving average line

September weather in Rhondda day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
 17° /10° 3.3 mm 3
2 Sept. Light rain shower
Light rain shower
 17° /10° 2.3 mm 4
3 Sept. Cloudy
Cloudy
 18° /11° 6.2 mm 4
4 Sept. Light rain shower
Light rain shower
 17° /11° 1.7 mm 4
5 Sept. Sunny
Sunny
 18° /10° 5.8 mm 4
6 Sept. Overcast
Overcast
 21° /13° 1.6 mm 4
7 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 3.1 mm 4
8 Sept. Light rain shower
Light rain shower
 17° /11° 8.1 mm 4
9 Sept. Sunny
Sunny
 17° /10° 1.2 mm 4
10 Sept. Light rain shower
Light rain shower
 16° /9° 4.8 mm 3
11 Sept. Light rain shower
Light rain shower
 15° /9° 2.6 mm 3
12 Sept. Fog
Fog
 14° /8° 4.6 mm 3
13 Sept. Mist
Mist
 14° /8° 5.1 mm 3
14 Sept. Fog
Fog
 15° /9° 11 mm 3
15 Sept. Partly cloudy
Partly cloudy
 16° /9° 2.8 mm 3
16 Sept. Light rain shower
Light rain shower
 16° /9° 0.6 mm 3
17 Sept. Light rain shower
Light rain shower
 15° /10° 7.6 mm 4
18 Sept. Light rain shower
Light rain shower
 16° /10° 3.1 mm 3
19 Sept. Patchy rain possible
Patchy rain possible
 16° /11° 1.9 mm 2.7
20 Sept. Overcast
Overcast
 14° /9° 0 mm 1.5
21 Sept. Sunny
Sunny
 19° /10° 0 mm 3.9
22 Sept. Sunny
Sunny
 20° /14° 0 mm 5
23 Sept. Overcast
Overcast
 20° /13° 0.1 mm 5
24 Sept. Overcast
Overcast
 19° /13° 0 mm 5
25 Sept. Sunny
Sunny
 21° /13° 0 mm 6
26 Sept. Sunny
Sunny
 22° /14° 0 mm 6
27 Sept. Overcast
Overcast
 22° /14° 0 mm 5
28 Sept. Sunny
Sunny
 22° /15° 0 mm 6
29 Sept. Sunny
Sunny
 22° /12° 0 mm 6
30 Sept. Overcast
Overcast
 19° /15° 0 mm 4
Next
Important Notice
Our weather forecast for Rhondda 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 Rhondda forecast closer to your planned date for the most up-to-date weather information.
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Rhondda in September - FAQ

What are the expected maximum and minimum temperatures in Rhondda during September?
During September, expect a variety of temperatures with highs around 15° and lows near 9°, suitable for diverse activities and preferences.

How much rainfall should be expected in Rhondda during September?
Significant rainfall exceeding 128.5 mm is expected in Rhondda during September, occurring over more than 29 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Rhondda during September?
The average wind speed in Rhondda during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Rhondda

Explore the daily rainfall trends and prepare for Rhonddas September weather 💧
Typically, Rhondda has 29 rainy days in September with a total of 128.5 mm of rainfall.

UV exposure in Rhondda during September

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

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Get accurate weather forecasts for Rhondda, located at latitude 51.659 and longitude -3.449. Stay updated with localized weather information tailored for Rhondda.

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