Cardiff Weather Forecast

Today 15 Sep
- 9
- 23
Mostly clear
Wed 16 Sep
- 12
- 28
Possible shower
Thu 17 Sep
- 17
- 29
Sunny
Fri 18 Sep
- 13
- 21
Showers increasing
Sat 19 Sep
- 8
- 17
Showers
Sun 20 Sep
- 9
- 19
Possible shower
Mon 21 Sep
- 9
- 24
Partly cloudy

Today 15 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Wed 16 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Thu 17 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 18 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 19 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sun 20 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Mon 21 Sep
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm

Today 15 Sep South West

Clear. Winds easterly 15 to 20 km/h.

Cardiff Temperature Statistics View More

September Temperature

Collie East (8km)

Lowest 25 May, 2026
-2 °C
Average 2026
15 °C
Highest 2 February, 2026
39.4 °C
Lowest 2 August, 2026
-1.3 °C
Average August
10.8 °C
Highest 30 August, 2026
24.3 °C
Lowest 11 September, 2026
3.2 °C
Average September
12.9 °C
Highest 11 September, 2026
23.2 °C

Climate (2021–2026)

Collie East (8km)

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Average Low 2021–2026
8.8 °C
Average 2021–2026
15.7 °C
Average High 2021–2026
23.7 °C

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