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:
19°C
66.2°F
°C °F

Condition: Clear Sky

Pressure: 1,016 hPa

Feel like: 21 °C

Temperature: 19°C

Cloud: 0%

Humidity: 85%

Wind: NE - 3 km/h

Visibility: 14.68 km

Weather forecast

Mon
22 Jun
20°C / 35°C
Slight Thunderstorm
Tue
23 Jun
23°C / 34°C
Slight Thunderstorm
Wed
24 Jun
22°C / 31°C
Slight Thunderstorm
Thu
25 Jun
21°C / 28°C
Drizzle
Fri
26 Jun
19°C / 26°C
Drizzle
Hourly forecast today:
04:00 AM
17° / 19°
17° / 19°
Clear Sky
85% 7 km/h
05:00 AM
16° / 19°
16° / 19°
Clear Sky
84% 9 km/h
06:00 AM
17° / 20°
17° / 20°
Clear Sky
81% 8 km/h
07:00 AM
17° / 21°
17° / 21°
Clear Sky
78% 6 km/h
08:00 AM
17° / 22°
17° / 22°
Overcast
71% 8 km/h
09:00 AM
16° / 23°
16° / 23°
Overcast
63% 9 km/h
10:00 AM
15° / 24°
15° / 24°
Overcast
58% 10 km/h
11:00 AM
15° / 25°
15° / 25°
Overcast
52% 13 km/h
12:00 PM
15° / 26°
15° / 26°
Overcast
49% 16 km/h
13:00 PM
15° / 27°
15° / 27°
Overcast
46% 18 km/h
14:00 PM
14° / 28°
14° / 28°
Mainly Clear
42% 16 km/h

30 Day Averages and Extremes

  • Average high 21.67°C
  • Average low 14.2°C
  • Hottest day 35°C (22 June 2026)
  • Coldest day 0°C (04 July 2026)
  • Average humidity 62.57%
  • Days with precipitation 21 days
  • Highest precipitation 59 mm (07 June 2026)

Yesterday's Data

  • Max: 29°C
  • Min: 19°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 very hot weather in Harrow, with the high temperatures above 29ºC (84.2ºF), consider wearing:
- Sunscreen for skin protection
- Wide-brimmed sun hat
- Open-toed sandals or light sneakers
- Lightweight t-shirt or tank top

Temperature

Early
16°C / 20°C
Morning
16°C / 23°C
Afternoon
13°C / 29°C
Evening
15°C / 23°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 464
  • CO 129
  • NH3 1
  • NO2 18
  • O3 18
  • PM10 8
  • PM25 4
  • SO2 0
  • CH4 1,444

Sunrise / Sunset

03:44
20:22