Merton, United Kingdom Weather

  1. Merton, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Merton over the next 12 hours
  7. Temperature and possibility of rain in Merton in the coming days
  8. Rainfall in Merton in the coming days
  9. Merton Weather Summary
  10. Weather averages by month
  11. Merton's weather
  12. Frequently asked questions
  13. Comments
Merton, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
13°C
55.4°F
°C °F

Condition: Overcast

Pressure: 1,003 hPa

Feel like: 10 °C

Temperature: 13°C

Cloud: 100%

Humidity: 75%

Wind: SW - 17 km/h

Visibility: 40.62 km

Weather forecast

Wed
10 Dec
7°C / 12°C
Overcast
Thu
11 Dec
6°C / 10°C
Overcast
Fri
12 Dec
5°C / 11°C
Slight Rain
Sat
13 Dec
6°C / 11°C
Slight Rain Showers
Sun
14 Dec
9°C / 11°C
Slight Rain
Hourly forecast today:
19:00 PM
9° / 13°
9° / 13°
Overcast
75% 41 km/h
20:00 PM
8° / 12°
8° / 12°
Overcast
73% 37 km/h
21:00 PM
7° / 12°
7° / 12°
Overcast
75% 34 km/h
22:00 PM
8° / 11°
8° / 11°
Overcast
78% 32 km/h
23:00 PM
8° / 11°
8° / 11°
Overcast
80% 29 km/h
00:00 AM
8° / 11°
8° / 11°
Overcast
79% 29 km/h
01:00 AM
8° / 11°
8° / 11°
Overcast
82% 28 km/h
02:00 AM
8° / 11°
8° / 11°
Overcast
84% 28 km/h
03:00 AM
8° / 11°
8° / 11°
Overcast
86% 29 km/h
04:00 AM
8° / 11°
8° / 11°
Overcast
86% 28 km/h
05:00 AM
8° / 11°
8° / 11°
Overcast
85% 28 km/h

30 Day Averages and Extremes

  • Average high 10.4°C
  • Average low 6.43°C
  • Hottest day 14°C (07 December 2025)
  • Coldest day 0°C (26 November 2025)
  • Average humidity 82.2%
  • Days with precipitation 24 days
  • Highest precipitation 62 mm (01 December 2025)

Yesterday's Data

  • Max: 14°C
  • Min: 10°C
  • Total Precipitation: 1 mm

Temperature and possibility of rain in Merton over the next 12 hours

Temperature and possibility of rain in Merton in the coming days

Rainfall in Merton in the coming days

Merton Climate Summary

Merton features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 12.1ºC (53.78ºF), which is about 1.35% higher than the national average for United Kingdom. Annually, the city experiences approximately 45.27 millimeters (1.78 inches) of rainfall, spread across 113.19 rainy days, accounting for 31.01% of the year.

Longitude 51.4097742
Latitude -0.2108084
Yearly high temperature 14.5ºC (58.1ºF)
Yearly low temperature 7.68ºC (45.82ºF)
Hottest month August 21.82ºC (71.28ºF)
Coldest month December 3.79ºC (38.82ºF)
Yearly precip 45.27mm (1.78in)
Days with rainfall 113.19 days (31.01%)
Driest month April (77.15%)
Wettest month October (81.56%)

Weather averages by month

Month High / Low (°C) Rain
January 6.99° / 2.36° 9.91 days
February 7.82° / 2.76° 9.0 days
March 10.71° / 3.8° 7.73 days
April 14.29° / 5.66° 8.0 days
May 16.85° / 8.27° 9.55 days
June 19.87° / 11.07° 11.36 days
July 22.53° / 13.68° 11.18 days
August 21.82° / 13.86° 9.82 days
September 19.45° / 11.63° 7.64 days
October 15.14° / 9.36° 9.82 days
November 10.61° / 5.95° 9.73 days
December 7.98° / 3.79° 9.45 days

Merton's weather

Frequently asked questions

1. What is the hottest month in Merton?

August has the highest average monthly temperature (daily mean of 21.82ºC) and December are the coolest (daily mean of 3.79ºC).

2. What should I wear in Merton today?

For today's cool weather in Merton, with temperatures between 11ºC to 14ºC (51.8ºF to 57.2ºF), you should consider wearing:
- Cotton socks
- Knit hat (optional for cooler mornings)
- Comfortable pants or jeans
- Thin gloves (optional for early mornings or late evenings)

Temperature

Early
10°C / 13°C
Morning
8°C / 12°C
Afternoon
10°C / 13°C
Evening
7°C / 12°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 447
  • CO 121
  • NH3 0
  • NO2 9
  • O3 61
  • PM10 7
  • PM25 4
  • SO2 0
  • CH4 1,377

Sunrise / Sunset

07:54
15:52