Hertfordshire, United Kingdom Weather
- Hertfordshire, United Kingdom Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- 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 Weather Summary
- Weather averages by month
- Hertfordshire's weather
- Frequently asked questions
- Comments
Current conditions
Updated:
Overcast
17°C
°C
°F
Condition: Overcast
Pressure: 1,008 hPa
Feel like: 17 °C
Temperature: 17°C
Cloud: 100%
Humidity: 89%
Wind: ENE - 8 km/h
Visibility: 23.88 km
Wed
24 Jun
18°C / 31°C
Slight Thunderstorm
Thu
25 Jun
22°C / 31°C
Slight Thunderstorm
Fri
26 Jun
19°C / 27°C
Slight Rain
Sat
27 Jun
17°C / 24°C
Drizzle Dense Intensity
Sun
28 Jun
13°C / 23°C
Overcast
Hourly forecast today:
05:00 AM
15° / 17°
15° / 17°
Overcast
89%
17 km/h
06:00 AM
16° / 18°
16° / 18°
Clear Sky
87%
18 km/h
07:00 AM
17° / 20°
17° / 20°
Clear Sky
84%
20 km/h
08:00 AM
18° / 22°
18° / 22°
Clear Sky
79%
23 km/h
09:00 AM
18° / 24°
18° / 24°
Clear Sky
72%
21 km/h
10:00 AM
18° / 26°
18° / 26°
Clear Sky
63%
19 km/h
11:00 AM
18° / 28°
18° / 28°
Clear Sky
57%
20 km/h
12:00 PM
18° / 29°
18° / 29°
Clear Sky
52%
17 km/h
13:00 PM
18° / 31°
18° / 31°
Clear Sky
47%
21 km/h
14:00 PM
18° / 32°
18° / 32°
Mainly Clear
45%
20 km/h
15:00 PM
19° / 32°
19° / 32°
Clear Sky
46%
15 km/h
30 Day Averages and Extremes
- Average high 22.73°C
- Average low 13.53°C
- Hottest day 35°C (23 June 2026)
- Coldest day 0°C (06 July 2026)
- Average humidity 62.87%
- Days with precipitation 21 days
- Highest precipitation 48 mm (10 June 2026)
Yesterday's Data
- Max: 33°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
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- Ceredigion
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- Coventry
- Blackburn with Darwen
- Calderdale
- Bexley
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 very hot weather in Hertfordshire, with the high temperatures above 35ºC (95.0ºF), consider wearing:
- Broad-brimmed sun hat
- Lightweight, loose-fitting shorts
- Ultra-thin, breathable socks
- UV-blocking sunglasses
Temperature
Early
14°C / 16°C
Morning
18°C / 24°C
Afternoon
19°C / 32°C
Evening
19°C / 24°C
Air quality
Good
Satisfactory air quality, minimal pollution, low risk
- CO2 439
- CO 111
- NH3 1
- NO2 9
- O3 53
- PM10 13
- PM25 7
- SO2 0
- CH4 1,395
Sunrise / Sunset
03:43
20:23