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: Overcast

Pressure: 991 hPa

Feel like: 8 °C

Temperature: 11°C

Cloud: 100%

Humidity: 76%

Wind: SW - 16 km/h

Visibility: 40.52 km

Weather forecast

Wed
10 Dec
6°C / 11°C
Overcast
Thu
11 Dec
5°C / 9°C
Moderate Drizzle
Fri
12 Dec
4°C / 11°C
Slight Rain
Sat
13 Dec
4°C / 10°C
Slight Rain
Sun
14 Dec
8°C / 10°C
Slight Rain
Hourly forecast today:
20:00 PM
7° / 11°
7° / 11°
Overcast
76% 36 km/h
21:00 PM
7° / 10°
7° / 10°
Overcast
78% 33 km/h
22:00 PM
7° / 10°
7° / 10°
Overcast
80% 30 km/h
23:00 PM
7° / 9°
7° / 9°
Overcast
83% 29 km/h
00:00 AM
7° / 9°
7° / 9°
Overcast
84% 29 km/h
01:00 AM
7° / 9°
7° / 9°
Overcast
85% 29 km/h
02:00 AM
7° / 9°
7° / 9°
Overcast
86% 28 km/h
03:00 AM
7° / 9°
7° / 9°
Overcast
88% 27 km/h
04:00 AM
7° / 9°
7° / 9°
Overcast
88% 28 km/h
05:00 AM
7° / 9°
7° / 9°
Overcast
89% 27 km/h
06:00 AM
8° / 9°
8° / 9°
Overcast
89% 27 km/h

30 Day Averages and Extremes

  • Average high 9.2°C
  • Average low 4.77°C
  • Hottest day 13°C (07 December 2025)
  • Coldest day -1°C (26 November 2025)
  • Average humidity 86.47%
  • Days with precipitation 24 days
  • Highest precipitation 65 mm (01 December 2025)

Yesterday's Data

  • Max: 13°C
  • Min: 8°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 cool weather in Hertfordshire, with temperatures between 10ºC to 13ºC (50.0ºF to 55.4ºF), you should consider wearing:
- Casual shoes or sneakers
- Light scarf or wrap
- Comfortable pants or jeans
- Light jacket or cardigan

Temperature

Early
10°C / 12°C
Morning
8°C / 11°C
Afternoon
10°C / 13°C
Evening
7°C / 10°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 446
  • CO 125
  • NH3 0
  • NO2 7
  • O3 60
  • PM10 7
  • PM25 4
  • SO2 0
  • CH4 1,376

Sunrise / Sunset

07:56
15:50