Hertfordshire, United Kingdom Weather

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

Current conditions

Updated:
23°C
73.4°F
°C °F

Condition: Mainly Clear

Pressure: 1,006 hPa

Feel like: 22 °C

Temperature: 23°C

Cloud: 41%

Humidity: 40%

Wind: N - 11 km/h

Visibility: 31.36 km

Weather forecast

Tue
11 Aug
15°C / 28°C
Partly Cloudy
Wed
12 Aug
16°C / 32°C
Clear Sky
Thu
13 Aug
19°C / 29°C
Drizzle
Fri
14 Aug
16°C / 23°C
Drizzle
Sat
15 Aug
13°C / 24°C
Overcast
Hourly forecast today:
12:00 PM
9° / 23°
9° / 23°
Mainly Clear
40% 28 km/h
13:00 PM
7° / 24°
7° / 24°
Partly Cloudy
34% 29 km/h
14:00 PM
7° / 25°
7° / 25°
Clear Sky
32% 28 km/h
15:00 PM
7° / 25°
7° / 25°
Clear Sky
31% 26 km/h
16:00 PM
6° / 25°
6° / 25°
Clear Sky
30% 23 km/h
17:00 PM
6° / 25°
6° / 25°
Overcast
30% 19 km/h
18:00 PM
6° / 24°
6° / 24°
Mainly Clear
31% 19 km/h
19:00 PM
13° / 20°
13° / 20°
Clear Sky
65% 34 km/h
20:00 PM
12° / 18°
12° / 18°
Clear Sky
67% 32 km/h
21:00 PM
10° / 17°
10° / 17°
Clear Sky
66% 28 km/h
22:00 PM
10° / 17°
10° / 17°
Partly Cloudy
66% 28 km/h

30 Day Averages and Extremes

  • Average high 24.27°C
  • Average low 13.0°C
  • Hottest day 33°C (28 July 2026)
  • Coldest day 0°C (23 August 2026)
  • Average humidity 54.8%
  • Days with precipitation 13 days
  • Highest precipitation 18 mm (29 July 2026)

Yesterday's Data

  • Max: 25°C
  • Min: 16°C
  • Total Precipitation: 0 mm

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

Temperature and possibility of rain in Hertfordshire in the coming days

Rainfall in Hertfordshire in the coming days

Hertfordshire Climate Summary

Hertfordshire features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.29ºC (52.32ºF), which is about 0.54% higher than the national average for United Kingdom. Annually, the city experiences approximately 41.36 millimeters (1.63 inches) of rainfall, spread across 115.11 rainy days, accounting for 31.54% of the year.

Longitude 51.8097823
Latitude -0.2376744
Yearly high temperature 13.7ºC (56.66ºF)
Yearly low temperature 6.9ºC (44.42ºF)
Hottest month July 21.6ºC (70.88ºF)
Coldest month December 2.99ºC (37.38ºF)
Yearly precip 41.36mm (1.63in)
Days with rainfall 115.11 days (31.54%)
Driest month March (82.39%)
Wettest month June (81.55%)

Weather averages by month

Month High / Low (°C) Rain
January 6.18° / 1.75° 9.64 days
February 7.14° / 2.01° 8.82 days
March 10.09° / 3.04° 7.55 days
April 13.46° / 4.8° 8.91 days
May 15.92° / 7.22° 10.18 days
June 18.87° / 10.19° 11.91 days
July 21.6° / 12.73° 11.73 days
August 21.14° / 13.33° 11.82 days
September 18.66° / 10.99° 6.18 days
October 14.43° / 8.57° 10.0 days
November 9.78° / 5.15° 8.82 days
December 7.16° / 2.99° 9.55 days

Hertfordshire's weather

Frequently asked questions

1. What is the hottest month in Hertfordshire?

July has the highest average monthly temperature (daily mean of 21.6ºC) and December are the coolest (daily mean of 2.99ºC).

2. What should I wear in Hertfordshire today?

For today's warm weather in Hertfordshire, with temperatures between 21ºC to 24ºC (69.8ºF to 75.2ºF), you might consider wearing:
- Light, breathable socks
- Shorts or lightweight trousers
- Comfortable sandals or sneakers
- T-shirt or short-sleeve blouse

Temperature

Early
11°C / 16°C
Morning
11°C / 21°C
Afternoon
7°C / 25°C
Evening
10°C / 17°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 433
  • CO 135
  • NH3 1
  • NO2 2
  • O3 71
  • PM10 6
  • PM25 4
  • SO2 0
  • CH4 1,356

Sunrise / Sunset

04:39
19:32