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: 1,027 hPa

Feel like: 7 °C

Temperature: 9°C

Cloud: 100%

Humidity: 91%

Wind: N - 13 km/h

Visibility: 8.7 km

Weather forecast

Tue
03 Nov
7°C / 12°C
Drizzle
Wed
04 Nov
7°C / 10°C
Overcast
Thu
05 Nov
6°C / 8°C
Drizzle
Fri
06 Nov
6°C / 8°C
Drizzle
Sat
07 Nov
6°C / 7°C
Moderate Drizzle
Hourly forecast today:
01:00 AM
8° / 9°
8° / 9°
Overcast
91% 28 km/h
02:00 AM
7° / 9°
7° / 9°
Overcast
87% 35 km/h
03:00 AM
7° / 9°
7° / 9°
Overcast
85% 37 km/h
04:00 AM
6° / 9°
6° / 9°
Overcast
84% 39 km/h
05:00 AM
6° / 8°
6° / 8°
Mainly Clear
84% 37 km/h
06:00 AM
5° / 8°
5° / 8°
Clear Sky
87% 33 km/h
07:00 AM
6° / 7°
6° / 7°
Mainly Clear
88% 30 km/h
08:00 AM
5° / 8°
5° / 8°
Clear Sky
86% 31 km/h
09:00 AM
6° / 8°
6° / 8°
Partly Cloudy
83% 35 km/h
10:00 AM
5° / 9°
5° / 9°
Overcast
78% 38 km/h
11:00 AM
5° / 10°
5° / 10°
Overcast
70% 41 km/h

30 Day Averages and Extremes

  • Average high 10.6°C
  • Average low 6.07°C
  • Hottest day 16°C (26 October 2026)
  • Coldest day 0°C (16 November 2026)
  • Average humidity 77.0%
  • Days with precipitation 22 days
  • Highest precipitation 76 mm (23 October 2026)

Yesterday's Data

  • Max: 10°C
  • Min: 7°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 cool weather in Harrow, with temperatures between 8ºC to 11ºC (46.4ºF to 51.8ºF), you should consider wearing:
- Knit hat (optional for cooler mornings)
- Thin gloves (optional for early mornings or late evenings)
- Long-sleeve top or shirt
- Light jacket or cardigan

Temperature

Early
7°C / 9°C
Morning
6°C / 8°C
Afternoon
4°C / 11°C
Evening
5°C / 8°C

Air quality

Moderate

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

  • CO2 453
  • CO 150
  • NH3 0
  • NO2 5
  • O3 58
  • PM10 7
  • PM25 3
  • SO2 0
  • CH4 1,459

Sunrise / Sunset

06:56
16:32