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
20°C
°C
°F
Condition: Overcast
Pressure: 1,013 hPa
Feel like: 21 °C
Temperature: 20°C
Cloud: 100%
Humidity: 72%
Wind: ESE - 10 km/h
Visibility: 25.52 km
Mon
22 Jun
18°C / 32°C
Slight Thunderstorm
Tue
23 Jun
21°C / 31°C
Slight Thunderstorm
Wed
24 Jun
20°C / 30°C
Slight Thunderstorm
Thu
25 Jun
21°C / 25°C
Drizzle
Fri
26 Jun
19°C / 26°C
Moderate Drizzle
Hourly forecast today:
21:00 PM
15° / 20°
15° / 20°
Overcast
72%
20 km/h
22:00 PM
15° / 19°
15° / 19°
Overcast
76%
19 km/h
23:00 PM
15° / 18°
15° / 18°
Overcast
84%
17 km/h
00:00 AM
15° / 17°
15° / 17°
Clear Sky
90%
15 km/h
01:00 AM
15° / 16°
15° / 16°
Overcast
92%
13 km/h
02:00 AM
15° / 16°
15° / 16°
Overcast
94%
12 km/h
03:00 AM
14° / 15°
14° / 15°
Clear Sky
94%
13 km/h
04:00 AM
14° / 15°
14° / 15°
Clear Sky
93%
15 km/h
05:00 AM
14° / 16°
14° / 16°
Clear Sky
89%
16 km/h
06:00 AM
15° / 18°
15° / 18°
Clear Sky
85%
18 km/h
07:00 AM
16° / 19°
16° / 19°
Clear Sky
81%
23 km/h
30 Day Averages and Extremes
- Average high 20.6°C
- Average low 12.77°C
- Hottest day 32°C (22 June 2026)
- Coldest day 0°C (04 July 2026)
- Average humidity 68.47%
- Days with precipitation 21 days
- Highest precipitation 66 mm (07 June 2026)
Yesterday's Data
- Max: 27°C
- Min: 15°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
- Barnet
- 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 28ºC (82.4ºF), consider wearing:
- Lightweight t-shirt or tank top
- Sunscreen for skin protection
- UV-protective sunglasses
- Loose and airy fabrics like linen or cotton
Temperature
Early
15°C / 16°C
Morning
16°C / 23°C
Afternoon
15°C / 27°C
Evening
15°C / 20°C
Air quality
Good
Satisfactory air quality, minimal pollution, low risk
- CO2 446
- CO 112
- NH3 1
- NO2 5
- O3 64
- PM10 7
- PM25 4
- SO2 0
- CH4 1,382
Sunrise / Sunset
03:42
20:23