Penarth (Vale of Glamorgan) weather

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Forecast days

Today

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:53

Sunset: 19:20

Light rain changing to overcast by late morning.

M UV

L Pollution

No pollen data.

Next high tide: 05:20 for
Penarth (Beach)

Today

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 15° Celsius;
Fri 19 Sep

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 06:55

Sunset: 19:17

Cloudy changing to sunny intervals by lunchtime.

M UV

L Pollution

No pollen data.

First high tide: 06:16 for
Penarth (Beach)

Fri 19 Sep

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
Sat 20 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius;

Sunrise: 06:56

Sunset: 19:15

Overcast changing to light rain by late morning.

M UV

L Pollution

No pollen data.

First high tide: 07:01 for
Penarth (Beach)

Sat 20 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius;
Sun 21 Sep

Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 8° Celsius;

Sunrise: 06:58

Sunset: 19:13

Cloudy.

M UV

L Pollution

No pollen data.

First high tide: 07:41 for
Penarth (Beach)

Sun 21 Sep

Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 8° Celsius;
Mon 22 Sep

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 06:59

Sunset: 19:10

Sunny intervals changing to cloudy in the afternoon.

M UV

No pollution data.

No pollen data.

First high tide: 08:17 for
Penarth (Beach)

Mon 22 Sep

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 7° Celsius;
Tue 23 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 07:01

Sunset: 19:08

Sunny intervals changing to cloudy by lunchtime.

M UV

No pollution data.

No pollen data.

First high tide: 08:49 for
Penarth (Beach)

Tue 23 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;
Wed 24 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 07:03

Sunset: 19:06

Cloudy.

M UV

No pollution data.

No pollen data.

First high tide: 09:18 for
Penarth (Beach)

Wed 24 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 9° Celsius;

Light rain changing to overcast by late morning.

Sunrise: 06:53

Sunset: 19:20

M UV

L Pollution

No pollen data.

Next high tide: 05:20 for

Penarth (Beach)

7 day forecast for Penarth

Today (18 September 2025)

Time	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	50%	70%	90%	80%	80%	70%	60%	50%	40%	30%	20%	10%	10%	10%	<5%	10%	10%	10%	10%	10%	10%	<5%	<5%
Temperature (°C)	16°	16°	16°	17°	17°	17°	17°	17°	17°	17°	18°	18°	19°	19°	19°	19°	19°	19°	18°	18°	17°	17°	17°
Feels like temperature (°C)	15°	15°	15°	15°	15°	15°	15°	15°	16°	16°	16°	17°	18°	18°	18°	18°	18°	17°	16°	16°	15°	15°	15°
Wind direction and speed (mph)	SW 13	SW 12	SW 12	SW 11	SW 11	SW 12	SW 11	SW 11	SSW 11	SW 12	SW 12	SW 12	SW 11	SW 11	SW 10	SW 10	SSW 10	SSW 11	SSW 12	SSW 12	SSW 12	SSW 11	SSW 11
Wind gust (mph)	21	21	23	22	22	22	21	23	25	26	27	28	28	28	28	26	24	23	22	22	22	21	20
Visibility (description)	M	M	M	M	M	G	G	G	VG	VG	VG	VG	VG	E	E	E	VG	VG	VG	VG	VG	VG	VG
Humidity	96%	96%	96%	96%	96%	96%	96%	95%	94%	92%	90%	86%	83%	81%	78%	78%	79%	81%	83%	84%	85%	85%	86%
UV	-	-	-	-	-	1	1	1	1	1	2	2	3	3	2	1	1	1	1	-	-	-	-

Friday (19 September 2025)

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	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	10%	20%	20%	20%	20%	20%	20%	20%	20%	10%	20%	20%	20%
Temperature (°C)	16°	16°	16°	16°	16°	15°	15°	15°	15°	16°	16°	17°	18°	19°	20°	20°	20°	19°	19°	18°	17°	16°	16°	16°
Feels like temperature (°C)	15°	15°	15°	15°	14°	14°	14°	14°	14°	15°	15°	16°	17°	18°	19°	19°	19°	18°	18°	17°	16°	16°	16°	16°
Wind direction and speed (mph)	SSW 10	S 9	S 9	S 8	S 8	SSW 8	SSW 8	SSW 8	SSW 8	S 9	S 9	S 9	S 8	S 8	S 8	SSW 8	SSW 9	SW 9	WSW 9	SW 8	SW 7	SW 6	SSW 6	SSW 6
Wind gust (mph)	18	18	17	16	16	16	15	16	18	18	18	17	17	15	15	15	13	14	13	14	14	12	12	12
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	87%	88%	89%	89%	87%	87%	88%	88%	86%	85%	85%	83%	81%	79%	78%	78%	78%	80%	83%	86%	87%	87%	88%	90%
UV	-	-	-	-	-	-	1	1	1	1	2	2	3	3	3	2	1	1	1	1	-	-	-	-

Saturday (20 September 2025)

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%	40%	30%	30%	30%	30%	40%	40%	40%	50%	60%	70%	70%	60%	60%	50%	40%	40%	50%	60%	50%	40%	40%	40%
Temperature (°C)	16°	15°	15°	15°	15°	14°	14°	14°	14°	14°	15°	15°	15°	16°	16°	16°	16°	15°	15°	14°	13°	13°	12°	12°
Feels like temperature (°C)	15°	15°	14°	14°	14°	14°	14°	13°	13°	13°	14°	14°	14°	14°	14°	14°	13°	13°	12°	12°	11°	11°	10°	10°
Wind direction and speed (mph)	SSW 6	SSW 6	SSW 6	SSW 6	SSW 6	SW 6	SSW 6	SSW 6	SSW 7	SSE 8	S 8	S 9	S 11	S 12	SW 12	W 13	W 13	W 13	W 12	WSW 12	W 12	W 11	W 11	W 11
Wind gust (mph)	12	12	12	12	12	13	13	13	15	16	17	17	19	19	20	21	20	21	22	22	20	19	17	17
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	E	E	E	E	E	E	E
Humidity	91%	92%	92%	92%	92%	92%	92%	92%	91%	90%	87%	87%	88%	87%	83%	78%	78%	80%	76%	80%	82%	82%	83%	84%
UV	-	-	-	-	-	-	1	1	1	1	1	1	2	2	2	2	1	1	1	1	-	-	-	-

Sunday (21 September 2025)

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%	50%	60%	50%	50%	50%	40%	40%	40%	40%	40%	40%	50%	50%	50%	40%	40%	40%	30%	30%	30%	30%	30%	30%
Temperature (°C)	12°	12°	11°	11°	11°	11°	10°	10°	10°	11°	12°	12°	12°	13°	13°	13°	13°	12°	12°	11°	10°	10°	10°	10°
Feels like temperature (°C)	10°	9°	9°	9°	9°	9°	8°	8°	8°	9°	9°	10°	10°	10°	10°	10°	10°	10°	9°	8°	8°	7°	7°	7°
Wind direction and speed (mph)	W 11	W 11	WNW 11	WNW 10	NW 10	NW 10	NW 9	NNW 9	NNW 9	N 10	N 10	N 11	N 12	N 12	N 13	N 13	N 13	N 14	N 13	N 12	N 11	N 11	N 11	N 11
Wind gust (mph)	17	17	21	17	19	16	16	15	19	19	20	21	22	23	24	24	24	24	23	20	19	21	20	20
Visibility (description)	E	E	E	E	E	E	E	E	VG	E	E	E	E	E	E	E	E	E	E	E	VG	VG	VG	VG
Humidity	85%	84%	85%	85%	85%	85%	84%	84%	81%	77%	74%	69%	67%	64%	64%	64%	63%	63%	65%	68%	70%	71%	73%	73%
UV	-	-	-	-	-	-	1	1	1	1	2	3	4	4	3	2	2	1	1	1	-	-	-	-

Monday (22 September 2025)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	20%	20%	10%	10%	10%	20%	10%	10%	10%
Temperature (°C)	9°	9°	9°	8°	11°	13°	14°	13°	11°
Feels like temperature (°C)	7°	7°	6°	5°	8°	11°	11°	10°	9°
Wind direction and speed (mph)	N 11	N 11	N 11	N 11	NNE 13	NNE 14	NE 13	NNE 13	NNE 11
Wind gust (mph)	20	19	19	22	23	22	19	17	15
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	76%	78%	79%	67%	55%	48%	55%	65%
UV	-	-	-	1	2	4	2	1	-

Tuesday (23 September 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	<5%	10%	10%	10%	10%	10%
Temperature (°C)	9°	8°	8°	11°	14°	15°	13°	12°
Feels like temperature (°C)	7°	6°	6°	9°	12°	12°	11°	10°
Wind direction and speed (mph)	N 10	N 9	N 9	N 11	N 12	N 12	N 11	N 10
Wind gust (mph)	12	10	11	15	15	14	13	10
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	72%	76%	79%	66%	55%	53%	60%	72%
UV	-	-	1	2	4	1	1	-

Wednesday (24 September 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	20%	20%	20%	10%	10%
Temperature (°C)	11°	10°	9°	12°	14°	15°	13°	12°
Feels like temperature (°C)	9°	8°	7°	10°	12°	13°	11°	10°
Wind direction and speed (mph)	NNE 9	NNE 9	NNE 9	NNE 11	NE 12	NNE 11	NNE 10	N 8
Wind gust (mph)	10	10	10	11	13	11	10	9
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	76%	79%	84%	75%	65%	57%	68%	75%
UV	-	-	1	2	3	1	1	-

UK video forecast

Penarth weather map

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WARNING

Flood alerts in force for Wales

Natural Resources Wales

Wales weather forecast

Headline:

Cloudy with outbreaks of rain. Breezy.

This Evening and Tonight:

Rain persisting throughout this evening and overnight, this turning heavy at times especially in the south over the hills and mountains. Windy for all, particularly along the coasts, and feeling humid. Minimum temperature 13 °C.

Thursday:

A cloudy, damp and mild start to Thursday. Cloud breaking in the east with some brighter spells, but drizzle persisting over the hills in the west. Staying windy and humid. Maximum temperature 20 °C.

Outlook for Friday to Sunday:

Remaining changeable with showers or longer spells of rain at times. Some brighter periods are also likely, mainly on Friday. Temperatures close to average but turning colder through Sunday. Breezy.

Updated: 17:00 (UTC+1) on Wed 17 Sep 2025

UK long range weather forecast

Into next week, a northwest-southeast split is most likely. The best of drier spells will be in the north and northwest where some fog and frost patches are possible, but there will be spells or rain or showers in south and eastern areas, near to an area of low pressure. It will also turn colder, as a northerly flow becomes established for a time. Later in the week, more widely drier and settled conditions could develop as high pressure becomes more influential, although probably still with some coastal showers. Temperatures should gradually return closer to average in this period. Later in the period there may be a return to a more changeable pattern but this is uncertain.

Updated: 15:00 (UTC+1) on Wed 17 Sep 2025

By the beginning of October, confidence is very low in the weather regimes most likely to affect the UK. On balance, there will likely be a transition from slow-moving weather patterns to a more changeable period at some stage although the timing on this is highly uncertain. High pressure probably close to the UK, which would offer some occasional periods of dry weather, will likely give way to a more unsettled period with some short lived dry interludes during this time. Temperatures will likely fluctuate either side of, but often close to, average.

Updated: 16:00 (UTC+1) on Wed 17 Sep 2025

Penarth (Vale of Glamorgan) weather

Find a forecast

Forecast days

Today

Today

Fri 19 Sep

Fri 19 Sep

Sat 20 Sep

Sat 20 Sep

Sun 21 Sep

Sun 21 Sep

Mon 22 Sep

Mon 22 Sep

Tue 23 Sep

Tue 23 Sep

Wed 24 Sep

Wed 24 Sep

7 day forecast for Penarth

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UK video forecast

Wales weather forecast

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

Causes of climate change

8 interesting facts about autumn

When does autumn start?

8 facts about fog

Our seasons

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Penarth (Vale of Glamorgan) weather

Find a forecast

Forecast days

Today

Today

Fri 19 Sep

Fri 19 Sep

Sat 20 Sep

Sat 20 Sep

Sun 21 Sep

Sun 21 Sep

Mon 22 Sep

Mon 22 Sep

Tue 23 Sep

Tue 23 Sep

Wed 24 Sep

Wed 24 Sep

7 day forecast for Penarth

UK video forecast

Wales weather forecast

Wednesday 17 Sep - Sunday 21 Sep

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Monday 22 Sep - Wednesday 1 Oct

Thursday 2 Oct - Thursday 16 Oct

Nearest forecasts

More from the Met Office

Causes of climate change

8 interesting facts about autumn

When does autumn start?

8 facts about fog

Our seasons

WeatherReady

Website feedback