Which is the hottest month in Greater London?

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

Best time to visit Greater London

Q: When is the best time to visit Greater London?

The best time to visit Greater London is July and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which month has the most rain in Greater London?

In terms of rainfall, December is usually the wettest month in London, Greater London with 59mm on average. There are normally 14 days in December with some rain.

Q: When is it sunniest in Greater London?

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

Find the best time to visit Greater London and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Greater London by month

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

Recommended for Greater London

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Places to visit

Destination

When is the best time to visit Greater London?

The best time to visit Greater London 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.

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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
8
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
1
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Greater London (London) 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.

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

More about Greater London

Explore our complete guide to Greater London with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Greater London.

Essential travel guide
Travel guidance
Travel health
Travel features
Top travel deals
FAQs

Greater London travel guide - essential info

Below is a beginner's guide to Greater London with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.

Greater London - quick facts
Time difference	UK +0 hours
Language(s)	English
Currency	Pound Sterling
Electricity	G plug (230V)
Driving side	Left

Travelling to Greater London?
Hotels

Greater London travel guidance

Check the latest travel guidance and advice on visiting Greater London from official government sources (in english) from around the world including entry requirements and travel restrictions.

Irish traveller advice for Greater London - Department of Foreign Affairs, Ireland
Canadian travel advice for Greater London - Government of Canada
US travel advisories for Greater London - US Department of State
Safe travel advisories for Greater London - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for Greater London - Department of Foreign Affairs, Australia

Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Greater London.

Note: UK FCDO - UK Foreign, Commonwealth & Development Office

Greater London travel health

Find out more about staying safe when travelling to Greater London with the latest guidance on required vaccinations and recommended medication to take with you.

Vaccines & medicines for Greater London - CDC
Health & vaccinations for Greater London - TravelHealthPro, NaTHNac
How to stay safe & healthy in Greater London - Fit for Travel, Public Health Scotland

Check out the general travel tips for staying safe and healthy in Greater London, risks of preventable diseases and what to pack.

Note: CDC - Centers for Disease Control and Prevention

Greater London travel features

Do you want to learn more about Greater London? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Greater London.

We don't currently have any travel features on Greater London. Discover more about holiday destinations around the world with this selection of general travel articles.

Greater London FAQs

Read our frequently asked questions about travelling to Greater London including the current entry restrictions, driving side, electrical plugs used and much more.

Which month has the most rain in Greater London?

In terms of rainfall, January is usually the wettest month in London, Greater London with 0mm on average. There are normally no days in January with some rain.

When is it sunniest in Greater London?

The sunniest time of year in London, Greater London is normally January with bright sunshine on average for 0% of daylight hours; that's 0 hours of sunshine per day.

When is the sea warmest in Greater London?

The sea is usually at its warmest in London, Greater London in January when the water temperature reaches 0°C.

What is the time difference between Greater London and the UK?

The time difference between Greater London and the UK is UK time+0 hours.

What is the main language spoken in Greater London?

The main language spoken in Greater London is English.

Learn a language for Greater London with Rosetta Stone^*, Busuu^* and Rocket Languages^*.

What is the currency in Greater London?

The currency in Greater London is the Pound Sterling (GBP).

Send money to Greater London with Wise.com^*, World Remit^* and TransferGo^*.

Which plugs are used in Greater London?

Greater London uses electrical plug type G (230 Volts).

Which side of the road do they drive on in Greater London?

They drive on the left side of the road in Greater London.

Find out more about driving in UK with International Drivers Association^*.

Greater London travel deals

Holidays to Greater London

Check out the latest deals, discount codes and special offers on holidays to Greater London in 2025/2026. Pay low deposits and save with last minute holiday availability and free kids places.