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:
11°C
51.8°F
°C °F

Condition: Clear Sky

Pressure: 1,011 hPa

Feel like: 10 °C

Temperature: 11°C

Cloud: 9%

Humidity: 78%

Wind: NW - 5 km/h

Visibility: 25.54 km

Weather forecast

Fri
07 Aug
12°C / 24°C
Partly Cloudy
Sat
08 Aug
15°C / 28°C
Overcast
Sun
09 Aug
16°C / 26°C
Overcast
Mon
10 Aug
14°C / 25°C
Overcast
Tue
11 Aug
15°C / 32°C
Overcast
Hourly forecast today:
23:00 PM
7° / 11°
7° / 11°
Clear Sky
78% 10 km/h
00:00 AM
8° / 12°
8° / 12°
Mainly Clear
74% 10 km/h
01:00 AM
8° / 11°
8° / 11°
Partly Cloudy
79% 10 km/h
02:00 AM
6° / 8°
6° / 8°
Clear Sky
88% 7 km/h
03:00 AM
6° / 8°
6° / 8°
Clear Sky
89% 8 km/h
04:00 AM
8° / 10°
8° / 10°
Partly Cloudy
86% 7 km/h
05:00 AM
6° / 7°
6° / 7°
Clear Sky
93% 5 km/h
06:00 AM
8° / 12°
8° / 12°
Clear Sky
78% 4 km/h
07:00 AM
8° / 15°
8° / 15°
Partly Cloudy
65% 4 km/h
08:00 AM
7° / 17°
7° / 17°
Clear Sky
53% 14 km/h
09:00 AM
7° / 18°
7° / 18°
Partly Cloudy
48% 17 km/h

30 Day Averages and Extremes

  • Average high 24.13°C
  • Average low 13.27°C
  • Hottest day 33°C (28 July 2026)
  • Coldest day 0°C (19 August 2026)
  • Average humidity 52.13%
  • Days with precipitation 13 days
  • Highest precipitation 21 mm (15 August 2026)

Yesterday's Data

  • Max: 19°C
  • Min: 11°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 20ºC to 23ºC (68.0ºF to 73.4ºF), you might consider wearing:
- Sunglasses
- Comfortable sandals or sneakers
- T-shirt or short-sleeve blouse
- Sun hat or cap

Temperature

Early
9°C / 12°C
Morning
6°C / 17°C
Afternoon
5°C / 19°C
Evening
7°C / 15°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 439
  • CO 139
  • NH3 4
  • NO2 12
  • O3 45
  • PM10 8
  • PM25 4
  • SO2 0
  • CH4 1,378

Sunrise / Sunset

04:33
19:40