Harrow, United Kingdom Weather

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

Current conditions

Updated:
9°C
48.2°F
°C °F

Condition: Overcast

Pressure: 999 hPa

Feel like: 5 °C

Temperature: 9°C

Cloud: 100%

Humidity: 68%

Wind: E - 16 km/h

Visibility: 14.42 km

Weather forecast

Wed
11 Nov
7°C / 10°C
Moderate Rain
Thu
12 Nov
3°C / 7°C
Overcast
Fri
13 Nov
2°C / 6°C
Partly Cloudy
Sat
14 Nov
0°C / 8°C
Overcast
Sun
15 Nov
3°C / 11°C
Drizzle
Hourly forecast today:
16:00 PM
4° / 9°
4° / 9°
Overcast
68% 35 km/h
17:00 PM
4° / 9°
4° / 9°
Overcast
71% 35 km/h
18:00 PM
5° / 9°
5° / 9°
Overcast
75% 33 km/h
19:00 PM
6° / 9°
6° / 9°
Drizzle
84% 30 km/h
20:00 PM
7° / 8°
7° / 8°
Drizzle
90% 30 km/h
21:00 PM
7° / 8°
7° / 8°
Drizzle
94% 28 km/h
22:00 PM
7° / 8°
7° / 8°
Drizzle
94% 30 km/h
23:00 PM
7° / 8°
7° / 8°
Moderate Drizzle
94% 30 km/h
00:00 AM
7° / 8°
7° / 8°
Drizzle Dense Intensity
95% 28 km/h
01:00 AM
7° / 8°
7° / 8°
Slight Rain
95% 28 km/h
02:00 AM
7° / 8°
7° / 8°
Slight Rain
95% 34 km/h

30 Day Averages and Extremes

  • Average high 10.2°C
  • Average low 5.43°C
  • Hottest day 16°C (27 October 2026)
  • Coldest day 0°C (14 November 2026)
  • Average humidity 76.9%
  • Days with precipitation 19 days
  • Highest precipitation 46 mm (11 November 2026)

Yesterday's Data

  • Max: 9°C
  • Min: 4°C
  • Total Precipitation: 0 mm

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

Temperature and possibility of rain in Harrow in the coming days

Rainfall in Harrow in the coming days

Harrow Climate Summary

Harrow features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.86ºC (53.35ºF), which is about 1.11% higher than the national average for United Kingdom. Annually, the city experiences approximately 48.55 millimeters (1.91 inches) of rainfall, spread across 123.11 rainy days, accounting for 33.73% of the year.

Longitude 51.580559
Latitude -0.341995
Yearly high temperature 14.29ºC (57.72ºF)
Yearly low temperature 7.5ºC (45.5ºF)
Hottest month July 22.35ºC (72.23ºF)
Coldest month December 3.47ºC (38.25ºF)
Yearly precip 48.55mm (1.91in)
Days with rainfall 123.11 days (33.73%)
Driest month January (87.38%)
Wettest month June (77.31%)

Weather averages by month

Month High / Low (°C) Rain
January 6.7° / 2.13° 9.18 days
February 7.57° / 2.53° 8.55 days
March 10.55° / 3.6° 7.55 days
April 14.18° / 5.49° 9.64 days
May 16.67° / 8.12° 12.55 days
June 19.71° / 10.97° 13.45 days
July 22.35° / 13.6° 13.55 days
August 21.71° / 13.81° 13.55 days
September 19.21° / 11.52° 7.73 days
October 14.87° / 9.08° 9.64 days
November 10.34° / 5.69° 8.36 days
December 7.67° / 3.47° 9.36 days

Harrow's weather

Frequently asked questions

1. What is the hottest month in Harrow?

July has the highest average monthly temperature (daily mean of 22.35ºC) and December are the coolest (daily mean of 3.47ºC).

2. What should I wear in Harrow today?

For today's cold weather in Harrow, with temperatures ranging from 6ºC to 9ºC (42.8ºF to 48.2ºF), you should wear:
- Closed-toe shoes or boots
- Long pants (jeans or other thick materials)
- Scarf to protect the neck area
- Wool or thermal socks

Temperature

Early
4°C / 5°C
Morning
5°C / 6°C
Afternoon
4°C / 9°C
Evening
7°C / 8°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 466
  • CO 234
  • NH3 1
  • NO2 39
  • O3 36
  • PM10 20
  • PM25 16
  • SO2 2
  • CH4 1,477

Sunrise / Sunset

07:10
16:18