Which is the hottest month in Puerto Rico?

The hottest time of year in San Juan, Puerto Rico is normally September. Expect maximum daytime temperatures to reach 30°C with high heat and humidity.

Best time to visit Puerto Rico

Q: When is the best time to visit Puerto Rico?

The best time to visit Puerto Rico (San Juan) is March 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 Puerto Rico?

In terms of rainfall, August is usually the wettest month in San Juan, Puerto Rico with 195mm on average. There are normally 20 days in August with some rain.

Q: When is it sunniest in Puerto Rico?

The sunniest time of year in San Juan, Puerto Rico is normally March with bright sunshine on average for 75% of daylight hours; that's 9 hours of sunshine per day.

Q: When is the sea warmest in Puerto Rico?

The sea is usually at its warmest in San Juan, Puerto Rico in September when the water temperature reaches 29°C.

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

Puerto Rico by month

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

Recommended for Puerto Rico

Marella Cruises: up to 4% off ocean cruises

Sale

Book online & save up to 4% on Marella Cruises
Discount varies by season. Book online with TUI
Destinations across the Med, Caribbean & USA

Go to Marella Cruises deal >>

View all Marella Cruises offers

Cruise deal finder

Destination

Top Puerto Rico destinations

Below are the temperatures expected today at popular countries, regions and places in Puerto Rico. Select a destination to compare today's forecast with average weather conditions.

All Puerto Rico destinations

When is the best time to visit Puerto Rico?

The best time to visit Puerto Rico (San Juan) is March 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.

4
Jan
4
Feb
4.5
Mar
4
Apr
4
May
4
Jun
4
Jul
4
Aug
4
Sep
3.5
Oct
4
Nov
4
Dec

Change criteria

Max Day Temperature (°C)

27
Jan
27
Feb
28
Mar
29
Apr
29
May
30
Jun
30
Jul
30
Aug
30
Sep
30
Oct
29
Nov
28
Dec

Hours of Sunshine (daily)

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

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Puerto Rico (San Juan) 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)

Puerto Rico weather overview

This large, mountainous island lies between Hispaniola and the Leeward Islands and its topography and location, in the path of the northeast trade winds, gives it a rainier climate than is usual in the region. Unlike most other Caribbean islands, which have a single summer rainy season, Puerto Rico experiences downpours at any time of the year.

Its centre and north coast (site of the island's capital, San Juan) are particularly rainy. The south coast is more sheltered and therefore drier. Temperatures are high throughout the year in San Juan and humidity can make the heat sticky and unpleasant, although sea breezes help dispel this on the coast and the air is cooler and fresher in the mountains.

What to pack for Puerto Rico weather

Pack light clothes and rainwear with a warmer cover-up if you are planning a mountain visit.

More about Puerto Rico

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

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

Puerto Rico travel guide - essential info

Below is a beginner's guide to Puerto Rico 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.

Puerto Rico - quick facts
Flight time^✝	12 to 13 hours
Time difference	UK -4 hours
Language(s)	Spanish, English
Currency	United States Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes

Why visit Puerto Rico?

Considering a holiday to the Puerto Rico? Here are some of the very good reasons it makes such a wonderful holiday destination be it for beaches or nature to ensure you get the most out of your 2025/2026 escape.

Beaches
Nature
Nightlife

Puerto Rico tourist information

Discover Puerto Rico

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

Travelling to Puerto Rico?
Hotels Flights Ocean cruises eSIMs Travel insurance

Puerto Rico travel guidance

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

Irish traveller advice for Puerto Rico - Department of Foreign Affairs, Ireland
Canadian travel advice for Puerto Rico - Government of Canada
Safe travel advisories for Puerto Rico - Ministry of Foreign Affairs, New Zealand

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 Puerto Rico.

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

Puerto Rico travel health

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

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

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

Note: CDC - Centers for Disease Control and Prevention

Puerto Rico travel features

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

Perfect Puerto Rico holiday: Round the island in six easy steps

Puerto Rico FAQs

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

Which month has the most rain in Puerto Rico?

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

When is it sunniest in Puerto Rico?

The sunniest time of year in San Juan, Puerto Rico 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 Puerto Rico?

The sea is usually at its warmest in San Juan, Puerto Rico in January when the water temperature reaches 0°C.

What is the flight time to Puerto Rico from the UK?

The flight time to Puerto Rico from the UK is typically 12 to 13 hours.

What is the time difference between Puerto Rico and the UK?

The time difference between Puerto Rico and the UK is UK time-4 hours.

What is the main language spoken in Puerto Rico?

The main languages spoken in Puerto Rico are Spanish and English.

Learn a language for Puerto Rico with Rosetta Stone^*, Busuu^* and Babbel^*.

What is the currency in Puerto Rico?

The currency in Puerto Rico is the United States Dollar (USD).

Send money to Puerto Rico with World Remit^*.

Which plugs are used in Puerto Rico?

Puerto Rico uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in Puerto Rico?

They drive on the right side of the road in Puerto Rico.

Do you need a visa for Puerto Rico?

Yes, UK passport holders do need a visa to enter Puerto Rico.

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

Puerto Rico travel deals

Holidays to Puerto Rico

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