Risca (Caerphilly) weather

Find a forecast

Forecast days

Sun 13 Sep

Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 17° Celsius;

Sunrise: 06:44

Sunset: 19:31

Light rain changing to mist by nighttime.

M UV

L Pollution

No pollen data.

Sun 13 Sep

Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;
Mon 14 Sep

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 16° Celsius;

Sunrise: 06:46

Sunset: 19:29

Light rain changing to overcast by lunchtime.

M UV

L Pollution

No pollen data.

Mon 14 Sep

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Tue 15 Sep

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 11° Celsius;

Sunrise: 06:47

Sunset: 19:27

Heavy rain changing to sunny intervals by late morning.

M UV

L Pollution

No pollen data.

Tue 15 Sep

Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius;
Wed 16 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 06:49

Sunset: 19:25

Sunny intervals changing to partly cloudy by early evening.

M UV

L Pollution

No pollen data.

Wed 16 Sep

Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Thu 17 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 06:51

Sunset: 19:22

Heavy rain changing to sunny intervals by late morning.

M UV

L Pollution

No pollen data.

Thu 17 Sep

Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Fri 18 Sep

Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:52

Sunset: 19:20

Sunny intervals changing to cloudy by late morning.

M UV

No pollution data.

No pollen data.

Fri 18 Sep

Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Sat 19 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 06:54

Sunset: 19:18

Cloudy changing to sunny intervals by late morning.

M UV

No pollution data.

No pollen data.

Sat 19 Sep

Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;

Light rain changing to mist by nighttime.

Sunrise: 06:44

Sunset: 19:31

M UV

L Pollution

No pollen data.

7 day forecast for Risca

Today (13 September 2026)

Time	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	50%	60%	50%	50%	30%
Temperature (°C)	19°	18°	18°	18°	18°
Feels like temperature (°C)	19°	19°	19°	19°	19°
Wind direction and speed (mph)	WSW 7	WSW 7	WSW 7	WSW 7	WSW 7
Wind gust (mph)	17	17	17	17	17
Visibility (description)	P	P	P	P	P
Humidity	98%	99%	99%	99%	99%
UV	-	-	-	-	-

Monday (14 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	40%	30%	30%	40%	40%	50%	70%	80%	80%	70%	50%	50%	20%	20%	10%	10%	20%	20%	30%	30%	40%	40%	50%	50%
Temperature (°C)	18°	18°	18°	18°	18°	18°	18°	17°	18°	18°	19°	19°	20°	20°	21°	21°	21°	21°	20°	19°	18°	18°	18°	18°
Feels like temperature (°C)	18°	18°	18°	18°	18°	18°	19°	18°	18°	18°	19°	19°	20°	20°	21°	21°	21°	20°	20°	19°	18°	19°	18°	18°
Wind direction and speed (mph)	WSW 7	WSW 7	WSW 6	WSW 6	WSW 6	WSW 5	WSW 3	WSW 3	WSW 5	WSW 7	WSW 7	WSW 8	WSW 9	WSW 9	WSW 9	WSW 10	WSW 9	WSW 9	W 8	W 8	W 7	W 7	WSW 7	WSW 8
Wind gust (mph)	17	16	16	16	15	14	13	13	17	18	19	20	20	21	22	22	21	20	18	16	16	16	17	17
Visibility (description)	P	M	P	P	P	P	P	P	P	P	P	P	M	M	M	M	M	G	M	M	M	M	M	M
Humidity	99%	98%	98%	97%	97%	98%	98%	99%	99%	99%	98%	97%	96%	92%	89%	86%	84%	86%	86%	91%	93%	94%	96%	96%
UV	-	-	-	-	-	-	1	1	1	1	2	2	3	3	3	2	2	1	1	1	-	-	-	-

Tuesday (15 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	60%	50%	40%	60%	80%	80%	80%	70%	40%	20%	10%	20%	20%	10%	10%	<5%	<5%	10%	20%	30%	30%	20%	30%	30%
Temperature (°C)	18°	18°	18°	18°	18°	18°	18°	17°	18°	18°	18°	19°	20°	20°	20°	20°	19°	18°	18°	16°	16°	15°	14°	14°
Feels like temperature (°C)	18°	18°	17°	17°	17°	17°	17°	17°	17°	17°	17°	17°	18°	18°	17°	17°	17°	16°	16°	15°	15°	14°	13°	13°
Wind direction and speed (mph)	WSW 8	SW 8	SW 8	SW 8	SW 8	SW 8	SW 8	WSW 7	W 8	W 9	WNW 9	WNW 9	W 9	W 10	W 10	W 11	W 10	WNW 10	WNW 9	W 8	W 7	W 7	WNW 7	WNW 7
Wind gust (mph)	18	19	20	20	22	22	22	22	22	25	25	25	27	28	28	28	27	25	23	21	21	21	21	19
Visibility (description)	M	M	M	M	P	P	M	M	M	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	G	G	G
Humidity	96%	96%	95%	94%	96%	98%	98%	98%	95%	88%	79%	72%	66%	61%	56%	56%	56%	60%	64%	69%	75%	81%	84%	85%
UV	-	-	-	-	-	-	1	1	1	2	3	4	4	4	4	3	2	1	1	1	-	-	-	-

Wednesday (16 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	30%	30%	30%	30%	30%	30%	20%	20%	20%	20%	20%	20%	20%	20%	10%	10%	10%	10%	10%	10%	10%	10%	20%	40%
Temperature (°C)	14°	14°	13°	13°	13°	13°	12°	12°	13°	14°	16°	17°	17°	18°	18°	18°	18°	18°	17°	15°	13°	13°	13°	13°
Feels like temperature (°C)	13°	13°	12°	12°	12°	11°	12°	11°	12°	13°	14°	15°	15°	16°	16°	16°	16°	16°	15°	14°	13°	12°	12°	13°
Wind direction and speed (mph)	WNW 7	WNW 7	WNW 7	WNW 7	WNW 7	WNW 7	WNW 6	WNW 6	WNW 7	WNW 8	WNW 8	WNW 9	WNW 9	WNW 9	WNW 9	WNW 9	WNW 9	WNW 9	W 8	W 6	W 5	W 5	W 4	W 3
Wind gust (mph)	20	21	20	19	20	21	20	20	20	22	23	24	25	25	25	23	23	21	19	18	17	17	18	13
Visibility (description)	G	G	G	G	G	G	G	G	G	VG	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	86%	86%	86%	87%	87%	87%	87%	87%	85%	79%	74%	68%	66%	63%	60%	58%	58%	59%	64%	69%	76%	77%	79%	82%
UV	-	-	-	-	-	-	1	1	1	2	3	4	4	4	3	3	2	1	1	1	-	-	-	-

Thursday (17 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	60%	70%	70%	80%	80%	90%	90%	90%	80%	60%	50%	30%	30%	20%	20%	30%	40%	40%	50%	50%	50%	50%	50%	40%
Temperature (°C)	13°	13°	14°	14°	14°	14°	15°	15°	15°	15°	16°	17°	18°	18°	18°	18°	18°	17°	17°	16°	15°	14°	14°	14°
Feels like temperature (°C)	13°	13°	13°	13°	14°	14°	14°	14°	14°	14°	15°	16°	16°	16°	16°	16°	16°	15°	15°	14°	13°	13°	12°	12°
Wind direction and speed (mph)	WSW 5	WSW 6	WSW 6	WSW 6	WSW 7	SW 7	WSW 8	WSW 9	WSW 9	WSW 9	W 9	W 10	W 10	W 11	W 11	W 11	W 11	W 11	W 9	W 9	W 9	W 9	W 8	W 8
Wind gust (mph)	19	22	23	23	24	26	25	26	26	26	27	28	30	30	30	30	29	28	27	26	26	25	25	24
Visibility (description)	VG	G	G	G	M	P	P	P	M	M	G	G	G	VG	VG	VG	VG	VG	G	G	G	G	G	G
Humidity	82%	84%	89%	93%	95%	96%	97%	97%	97%	95%	86%	75%	67%	63%	57%	59%	62%	64%	68%	74%	76%	80%	81%	81%
UV	-	-	-	-	-	-	1	1	1	1	3	3	4	4	3	3	2	1	1	1	-	-	-	-

Friday (18 September 2026)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	30%	30%	20%	20%	10%	10%	10%	30%	50%
Temperature (°C)	13°	13°	13°	13°	15°	17°	17°	16°	16°
Feels like temperature (°C)	12°	11°	11°	11°	14°	15°	15°	15°	15°
Wind direction and speed (mph)	W 8	W 9	W 9	W 7	W 9	W 11	WSW 11	WSW 9	WSW 8
Wind gust (mph)	25	24	23	25	28	30	28	23	23
Visibility (description)	G	G	G	G	VG	VG	VG	G	G
Humidity	81%	81%	82%	84%	74%	66%	66%	75%	88%
UV	-	-	-	1	3	4	2	1	-

Saturday (19 September 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	40%	50%	40%	40%	40%	30%	30%	20%
Temperature (°C)	16°	16°	16°	17°	18°	18°	17°	17°
Feels like temperature (°C)	15°	15°	15°	16°	17°	17°	16°	16°
Wind direction and speed (mph)	WSW 8	WSW 8	WSW 7	WSW 9	WSW 11	WSW 11	WSW 9	WSW 8
Wind gust (mph)	23	22	24	29	30	28	23	21
Visibility (description)	G	G	G	G	G	G	G	G
Humidity	91%	92%	92%	86%	77%	75%	81%	86%
UV	-	-	1	2	4	1	1	-

UK video forecast

Risca weather map

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Wales weather forecast

Headline:

Changeable over the next few days.

This Evening and Tonight:

Staying mostly cloudy overnight with a few spots of rain possible at times, there is likely to be extensive low cloud and hill fog over the higher ground. Another warm and fairly humid night across the country. Minimum temperature 17 °C.

Monday:

Largely cloudy skies on Monday with a few outbreaks of rain or drizzle possible at times. Some warm and humid brighter spells also likely in the afternoon. Maximum temperature 23 °C.

Outlook for Tuesday to Thursday:

Changeable over the next few days and feeling fresher. Sunshine and showers will spread across the country and it will turn increasingly breezy.

Updated: 16:00 (UTC+1) on Sun 13 Sep 2026

UK long range weather forecast

Remaining changeable, with occasional rain or showers arriving from the North Atlantic, most frequent across northern and western parts of the UK, where some strong winds will also be possible at times. However, there will also be some reasonably dry and more settled periods interspersed, especially across southern areas, with a chance these may extend to more of the UK later in the period. Temperatures for the period as a whole will probably be close to average overall, but there is scope for some rather warm days at times, along with occasional relatively cool nights giving the occasional grass frost.

Updated: 13:00 (UTC+1) on Sun 13 Sep 2026

Most likely remaining changeable, with further spells of rain and showers arriving from the North Atlantic. Strong winds possible too at times, these most frequent across the north and west. Some short-lived settled spells are also possible, these most likely in the south. Temperatures for the period as a whole will probably be close to average overall.

Updated: 14:00 (UTC+1) on Sun 13 Sep 2026

Risca (Caerphilly) weather

Find a forecast

Forecast days

Sun 13 Sep

Sun 13 Sep

Mon 14 Sep

Mon 14 Sep

Tue 15 Sep

Tue 15 Sep

Wed 16 Sep

Wed 16 Sep

Thu 17 Sep

Thu 17 Sep

Fri 18 Sep

Fri 18 Sep

Sat 19 Sep

Sat 19 Sep

7 day forecast for Risca

Tooltip header

UK video forecast

Wales weather forecast

Headline:

This Evening and Tonight:

Monday:

Outlook for Tuesday to Thursday:

UK long range weather forecast

Nearest forecasts

Risca (Caerphilly) weather

Find a forecast

Forecast days

Sun 13 Sep

Sun 13 Sep

Mon 14 Sep

Mon 14 Sep

Tue 15 Sep

Tue 15 Sep

Wed 16 Sep

Wed 16 Sep

Thu 17 Sep

Thu 17 Sep

Fri 18 Sep

Fri 18 Sep

Sat 19 Sep

Sat 19 Sep

7 day forecast for Risca

UK video forecast

Wales weather forecast

Sunday 13 Sep - Thursday 17 Sep

Headline:

This Evening and Tonight:

Monday:

Outlook for Tuesday to Thursday:

UK long range weather forecast

Friday 18 Sep - Sunday 27 Sep

Monday 28 Sep - Monday 12 Oct

Nearest forecasts