Which is the hottest month in D.C.?

The hottest time of year in Washington, D.C. is normally July. Expect maximum daytime temperatures to reach 31°C with high heat and humidity.

Best time to visit D.C.

Q: When is the best time to visit D.C.?

The best time to visit D.C. (Washington) is May and June 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 D.C.?

In terms of rainfall, August is usually the wettest month in Washington, D.C. with 103mm on average. There are normally 9 days in August with some rain.

Q: When is it sunniest in D.C.?

The sunniest time of year in Washington, D.C. is normally June with bright sunshine on average for 63% of daylight hours; that's 9 hours of sunshine per day.

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

D.C. by month

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

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Destination

When is the best time to visit D.C.?

The best time to visit D.C. (Washington) is May and June 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.

1
Jan
1.5
Feb
1.5
Mar
3.5
Apr
4
May
4
Jun
4
Jul
4
Aug
4
Sep
3
Oct
1
Nov
0.5
Dec

Change criteria

Max Day Temperature (°C)

5
Jan
7
Feb
13
Mar
19
Apr
24
May
29
Jun
31
Jul
30
Aug
26
Sep
20
Oct
14
Nov
8
Dec

Hours of Sunshine (daily)

5
Jan
6
Feb
7
Mar
8
Apr
8
May
9
Jun
9
Jul
8
Aug
7
Sep
7
Oct
5
Nov
4
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for D.C., represented by Washington, (Washington) 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 D.C.

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

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

D.C. travel guide - essential info

Below is a beginner's guide to D.C. 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.

D.C. - quick facts
Flight time^✝	8.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes

Why visit D.C.?

Considering a holiday to the D.C.? Here are some of the very good reasons it makes such a wonderful holiday destination such as for its culture to ensure you get the most out of your 2025/2026 escape.

Culture

D.C. tourist information

DC Government

✝ = Typical flight time from the UK and visa requirements for UK travellers.

Travelling to D.C.?
Holidays Hotels Flights eSIMs Travel insurance

D.C. travel guidance

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

UK traveller advice for the D.C. - UK FCDO
Irish traveller advice for the D.C. - Department of Foreign Affairs, Ireland
Canadian travel advice for the D.C. - Government of Canada
Safe travel advisories for the D.C. - Ministry of Foreign Affairs, New Zealand
Smarter traveller advice for the D.C. - 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 D.C..

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

D.C. travel health

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

Vaccines & medicines for the D.C. - CDC
Health & vaccinations for the D.C. - TravelHealthPro, NaTHNac
How to stay safe & healthy in the D.C. - Fit for Travel, Public Health Scotland

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

Note: CDC - Centers for Disease Control and Prevention

D.C. travel features

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

A newbie's guide to Washington DC

D.C. FAQs

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

Which month has the most rain in D.C.?

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

When is it sunniest in D.C.?

The sunniest time of year in Washington, D.C. 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 D.C.?

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

What is the flight time to D.C. from the UK?

The flight time to D.C. from the UK is typically 8.5 hours.

What is the time difference between D.C. and the UK?

The time difference between D.C. and the UK is UK time-5 hours.

What is the main language spoken in D.C.?

The main language spoken in D.C. is English.

Learn a language for D.C. with Rosetta Stone^*, Busuu^* and Rocket Languages^*.

What is the currency in D.C.?

The currency in D.C. is the US Dollar (USD).

Send money to D.C. with TransferGo^*.

Which plugs are used in D.C.?

D.C. uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in D.C.?

They drive on the right side of the road in D.C..

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

Do you need a visa for D.C.?

Yes, UK passport holders do need a visa to enter D.C..

Check USA visa requirements for all passport holders with VisaHQ^*.

D.C. travel deals

Holidays to D.C.

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