Merton (Greater London) weather

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Forecast days

Today

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 12° Celsius;

Sunrise: 05:14

Sunset: 20:41

Partly cloudy.

H UV

L Pollution

L Pollen

Today

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 12° Celsius;
Tue 13 May

Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 05:12

Sunset: 20:43

Sunny intervals.

H UV

L Pollution

L Pollen

Tue 13 May

Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 9° Celsius;
Wed 14 May

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 05:11

Sunset: 20:44

Sunny.

H UV

M Pollution

L Pollen

Wed 14 May

Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 7° Celsius;
Thu 15 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 8° Celsius;

Sunrise: 05:09

Sunset: 20:46

Sunny intervals.

H UV

L Pollution

L Pollen

Thu 15 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 8° Celsius;
Fri 16 May

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 05:08

Sunset: 20:47

Sunny changing to partly cloudy by nighttime.

H UV

L Pollution

L Pollen

Fri 16 May

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 9° Celsius;
Sat 17 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 05:07

Sunset: 20:49

Cloudy changing to sunny intervals by late morning.

H UV

No pollution data.

No pollen data.

Sat 17 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 9° Celsius;
Sun 18 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 05:05

Sunset: 20:50

Sunny intervals.

H UV

No pollution data.

No pollen data.

Sun 18 May

Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 9° Celsius;
Mon 19 May

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 10° Celsius;

Sunrise: 05:04

Sunset: 20:52

Sunny intervals.

H UV

No pollution data.

No pollen data.

Mon 19 May

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 10° Celsius;

Partly cloudy.

Sunrise: 05:14

Sunset: 20:41

H UV

L Pollution

L Pollen

8 day forecast for Merton

Today (12 May 2025)

Time	23:00
Weather symbols
Chance of precipitation	<5%
Temperature (°C)	15°
Feels like temperature (°C)	15°
Wind direction and speed (mph)	SSE 3
Wind gust (mph)	6
Visibility (description)	VG
Humidity	67%
UV	-

Tuesday (13 May 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%	10%	<5%	<5%	<5%	<5%	10%	10%	10%	<5%	<5%	10%	30%	40%	40%	20%	10%	10%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	15°	14°	14°	13°	13°	13°	13°	14°	16°	17°	19°	21°	22°	23°	24°	24°	24°	23°	22°	21°	19°	17°	15°	14°
Feels like temperature (°C)	15°	14°	14°	13°	13°	13°	13°	14°	16°	17°	18°	19°	21°	22°	21°	21°	21°	20°	18°	17°	16°	15°	14°	13°
Wind direction and speed (mph)	SSE 2	SSE 2	SSE 2	SE 2	E 2	ENE 2	ESE 2	E 2	ENE 2	ENE 3	NE 4	NE 5	NE 6	E 7	E 8	E 9	E 11	E 12	E 12	E 12	E 11	ENE 10	ENE 8	ENE 7
Wind gust (mph)	4	4	3	3	3	3	3	4	6	9	11	15	17	18	22	23	23	24	24	23	19	17	15	14
Visibility (description)	VG	VG	VG	VG	G	G	G	G	G	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	70%	70%	73%	74%	75%	75%	74%	68%	66%	60%	54%	41%	40%	35%	31%	28%	35%	38%	39%	39%	40%	42%	46%	50%
UV	-	-	-	-	-	1	1	1	2	3	4	6	6	6	5	4	3	2	1	1	1	-	-	-

Wednesday (14 May 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	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	13°	12°	10°	11°	18°	23°	23°	18°	13°
Feels like temperature (°C)	12°	11°	9°	9°	16°	20°	19°	16°	11°
Wind direction and speed (mph)	ENE 6	NE 6	NE 5	NE 6	NE 9	ENE 9	E 11	E 11	NE 10
Wind gust (mph)	13	14	16	20	24	27	28	24	20
Visibility (description)	VG	VG	G	G	VG	VG	VG	VG	VG
Humidity	54%	56%	66%	67%	40%	21%	25%	43%	56%
UV	-	-	-	1	4	6	3	1	-

Thursday (15 May 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	10°	8°	9°	13°	18°	20°	18°	13°
Feels like temperature (°C)	8°	7°	7°	11°	15°	16°	15°	11°
Wind direction and speed (mph)	NNE 8	NNE 6	NNE 6	NNE 9	NNE 12	NNE 12	ENE 11	ENE 8
Wind gust (mph)	17	18	23	27	28	26	22	17
Visibility (description)	VG	VG	VG	VG	E	E	E	VG
Humidity	66%	75%	72%	55%	41%	39%	41%	61%
UV	-	-	1	4	6	3	1	-

Friday (16 May 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	10°	8°	9°	14°	19°	21°	18°	13°
Feels like temperature (°C)	8°	7°	8°	12°	16°	17°	15°	11°
Wind direction and speed (mph)	NE 7	NNE 6	NNE 6	NNE 8	NNE 10	NNE 11	NNE 11	NE 8
Wind gust (mph)	16	15	21	24	26	25	23	16
Visibility (description)	VG	VG	VG	VG	E	E	E	VG
Humidity	72%	80%	75%	53%	39%	27%	38%	62%
UV	-	-	1	4	6	3	1	-

Saturday (17 May 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	10°	9°	9°	12°	16°	19°	19°	16°
Feels like temperature (°C)	9°	8°	8°	11°	15°	17°	17°	14°
Wind direction and speed (mph)	NE 6	NE 5	NNE 5	NNE 7	NNE 7	NE 8	NE 8	ENE 6
Wind gust (mph)	16	14	17	17	17	17	17	15
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	72%	76%	76%	69%	54%	42%	41%	54%
UV	-	-	1	3	6	3	1	-

Sunday (18 May 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	10%	<5%	<5%	<5%
Temperature (°C)	12°	10°	9°	12°	16°	19°	19°	16°
Feels like temperature (°C)	11°	9°	8°	11°	15°	17°	17°	15°
Wind direction and speed (mph)	NE 4	NNE 4	NNE 4	NNE 6	NNE 7	NNE 7	NNE 8	NE 6
Wind gust (mph)	8	8	12	13	14	14	16	14
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	73%	84%	84%	74%	56%	42%	41%	52%
UV	-	-	1	4	6	3	1	-

Monday (19 May 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	10%	10%	10%	<5%	<5%
Temperature (°C)	13°	10°	10°	13°	17°	20°	19°	16°
Feels like temperature (°C)	12°	10°	9°	12°	16°	17°	17°	15°
Wind direction and speed (mph)	NE 5	NE 4	NNE 5	NNE 7	NE 8	NE 8	NE 9	ENE 6
Wind gust (mph)	10	8	13	15	16	17	17	14
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	72%	82%	84%	70%	50%	40%	40%	47%
UV	-	-	1	5	6	3	1	-

News

Thundery showers in the south, before a return to warm, dry weather for all

A temporary interruption to the fine spell of weather continues on Monday and Tuesday for some, before more settled and warm conditions return for the majority…

UK video forecast

Merton weather map

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WARNING

Flood alerts in force for England

Environment Agency

London & South East England weather forecast

Headline:

Largely dry with clear spells overnight. Warm sunny spells Tuesday.

This Evening and Tonight:

Any showers will soon fade this evening to leave a largely dry night, with clear spells. Some isolated mist and fog patches are likely to form in some prone rural areas by dawn. Light winds. Mild. Minimum temperature 14 °C.

Tuesday:

Early mist and fog patches soon clearing to leave a largely dry and warm day, with sunny spells. Chance of some heavy showers and isolated thunderstorms developing in the afternoon. Maximum temperature 25 °C.

Outlook for Wednesday to Friday:

Dry, warm and largely sunny over the next few days. Mild nights at first, but cooler nights later in the week. Light winds.

Updated: 17:00 (UTC+1) on Mon 12 May 2025

UK long range weather forecast

Dry, fine, and largely sunny conditions are expected to continue for the vast majority as a slow moving area of high pressure remains dominant. The weather will continue to be warm or very warm, especially in the west, but it will likely be cooler in the east as some coastal areas see more persistent low cloud at times, compared with previous days. There is an increasing chance that conditions will turn wetter and more unsettled through the mid- to latter-part of next week, possibly following a hotter spell, as areas of rain and strengthening winds threaten from the west and/or south (the latter bringing a risk of thunderstorms) This would most likely to be accompanied by temperatures dropping nearer to average for the time of year.

Updated: 15:00 (UTC+1) on Mon 12 May 2025

The start of the period may see some more in the way of rain and showers across, especially across western parts. Fine and dry weather is more likely to prevail towards the south and east and may start to develop more widely, but occasional spells of rain and showers are still possible, with potential for thunderstorms on some days. Overall, temperatures will most likely be around or above normal for the time of year.

Updated: 16:00 (UTC+1) on Mon 12 May 2025

Merton (Greater London) weather

Find a forecast

Forecast days

Today

Today

Tue 13 May

Tue 13 May

Wed 14 May

Wed 14 May

Thu 15 May

Thu 15 May

Fri 16 May

Fri 16 May

Sat 17 May

Sat 17 May

Sun 18 May

Sun 18 May

Mon 19 May

Mon 19 May

8 day forecast for Merton

Tooltip header

Thundery showers in the south, before a return to warm, dry weather for all

UK video forecast

London & South East England weather forecast

Headline:

This Evening and Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

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Ottery St Mary Hailstorm October 2008

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Website feedback

Merton (Greater London) weather

Find a forecast

Forecast days

Today

Today

Tue 13 May

Tue 13 May

Wed 14 May

Wed 14 May

Thu 15 May

Thu 15 May

Fri 16 May

Fri 16 May

Sat 17 May

Sat 17 May

Sun 18 May

Sun 18 May

Mon 19 May

Mon 19 May

8 day forecast for Merton

Thundery showers in the south, before a return to warm, dry weather for all

UK video forecast

London & South East England weather forecast

Monday 12 May - Friday 16 May

Headline:

This Evening and Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Saturday 17 May - Monday 26 May

Tuesday 27 May - Tuesday 10 Jun

Nearest forecasts

More from the Met Office

Causes of climate change

What are the different types of rain?

D-Day - the most important weather forecast in history

Ottery St Mary Hailstorm October 2008

What is the difference between mist, fog and haze?

5 tips for staying safe in a thunderstorm

Website feedback