Hertfordshire weather

Usually in January
- 7
- 1
- 2
Weather by month
Now Today
- 10
- 3
5-day forecast

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The weather guide for Hertfordshire (Watford) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

When is the best time to go to Hertfordshire?

The best time to go to Hertfordshire (Watford) is July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0.5
Mar
1
Apr
1.5
May
3.5
Jun
4
Jul
4
Aug
2
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

7
Jan
7
Feb
10
Mar
13
Apr
17
May
20
Jun
22
Jul
22
Aug
19
Sep
15
Oct
10
Nov
7
Dec

Hours of Sunshine (daily)

2
Jan
2
Feb
4
Mar
5
Apr
6
May
7
Jun
6
Jul
6
Aug
5
Sep
3
Oct
2
Nov
2
Dec

Best time to go for the weather

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

Which is the hottest month in Hertfordshire?

The hottest time of year in Watford, Hertfordshire is normally July. Expect maximum daytime temperatures to reach 22°C.

Which month has the most rain in Hertfordshire?

In terms of rainfall, December is usually the wettest month in Watford, Hertfordshire with 64mm on average. There are normally 15 days in December with some rain.

When is it sunniest in Hertfordshire?

The sunniest time of year in Watford, Hertfordshire is normally August with bright sunshine on average for 41% of daylight hours; that's 6 hours of sunshine per day.

What is the time difference between Hertfordshire and the UK?

The time difference between Hertfordshire and the UK is GMT+0 hours.

What is the main language spoken in Hertfordshire?

The main language spoken in Hertfordshire is English.

Learn a language for Hertfordshire with Busuu^*, Lingoda^* and Rocket Languages^*.

What is the currency in Hertfordshire?

The currency in Hertfordshire is the Pound Sterling (GBP).

Send money to Hertfordshire with Monito^*, Wise^* and World Remit^*.

Which plugs are used in Hertfordshire?

Hertfordshire uses electrical plug type G (230 Volts).

Which side of the road do they drive on in Hertfordshire?

They drive on the left side of the road in Hertfordshire.

Compare Hertfordshire weather with the USA

Below the Hertfordshire weather chart shows average maximum daytime temperature for Hertfordshire, England (Watford) and the USA (Washington).

Maximum daytime temperature (°C)

Hertfordshire, England (Watford)

USA (Washington)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec