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:
7°C
44.6°F
°C °F

Condition: Drizzle Dense Intensity

Pressure: 993 hPa

Feel like: 5 °C

Temperature: 7°C

Cloud: 98%

Humidity: 90%

Wind: NW - 7 km/h

Visibility: 20.0 km

Weather forecast

Fri
15 May
6°C / 12°C
Overcast
Sat
16 May
9°C / 13°C
Drizzle
Sun
17 May
6°C / 13°C
Moderate Drizzle
Mon
18 May
10°C / 13°C
Drizzle Dense Intensity
Tue
19 May
11°C / 17°C
Moderate Drizzle
Hourly forecast today:
01:00 AM
5° / 7°
5° / 7°
Drizzle Dense Intensity
90% 15 km/h
02:00 AM
5° / 7°
5° / 7°
Drizzle
91% 19 km/h
03:00 AM
5° / 7°
5° / 7°
Overcast
91% 22 km/h
04:00 AM
5° / 6°
5° / 6°
Partly Cloudy
90% 21 km/h
05:00 AM
4° / 6°
4° / 6°
Overcast
86% 24 km/h
06:00 AM
4° / 7°
4° / 7°
Mainly Clear
85% 27 km/h
07:00 AM
3° / 7°
3° / 7°
Mainly Clear
75% 33 km/h
08:00 AM
2° / 8°
2° / 8°
Partly Cloudy
65% 30 km/h
09:00 AM
2° / 9°
2° / 9°
Partly Cloudy
61% 26 km/h
10:00 AM
1° / 10°
1° / 10°
Partly Cloudy
56% 31 km/h
11:00 AM
1° / 11°
1° / 11°
Partly Cloudy
53% 26 km/h

30 Day Averages and Extremes

  • Average high 16.7°C
  • Average low 8.77°C
  • Hottest day 26°C (26 May 2026)
  • Coldest day 0°C (28 May 2026)
  • Average humidity 63.33%
  • Days with precipitation 25 days
  • Highest precipitation 58 mm (12 May 2026)

Yesterday's Data

  • Max: 13°C
  • Min: 6°C
  • Total Precipitation: 4 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 10ºC to 13ºC (50.0ºF to 55.4ºF), you should consider wearing:
- Knit hat (optional for cooler mornings)
- Light jacket or cardigan
- Cotton socks
- Light scarf or wrap

Temperature

Early
5°C / 7°C
Morning
2°C / 9°C
Afternoon
0°C / 13°C
Evening
5°C / 7°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 448
  • CO 135
  • NH3 1
  • NO2 8
  • O3 59
  • PM10 7
  • PM25 4
  • SO2 0
  • CH4 1,406

Sunrise / Sunset

04:08
19:46