Weather in San Juan, Puerto Rico

What type of climate does San Juan Puerto Rico have?

San Juan weather conditions fit into the category of tropical marine. It is usually hot and sunny, with great humidity year-round. In the coastal plains, the temperature varies from 76°F (24°C) to 88°F (31°C). It ranges between 73°F (22°C) and 78°F (25°C) in the mountains. The level of humidity typically reaches 80 percent.

Yet, the weather is usually breezy due to the northeastern wind that prevails on that part of the island. Besides, it is an annual precipitation that makes the weather in Puerto Rico challenging for visitors. Every year, San Juan's tropical climate presents travelers with 62 inches (1,574 mm) of rain.

Keep in mind that it pours the heaviest from May through October. This period is also hurricane season. On contrary, the driest time of the year is from January to April when the weather conditions are most favorable for the tourism industry.

San Juan weather today

To keep track of the weather in San Juan for the current week, look through the forecast below. It provides you with an expected temperature range and humidity level in Puerto Rico.

Sunday

Humidity

41 %

11.5 ℃

Monday

Humidity

45 %

10.9 ℃

Tuesday

Humidity

39 %

11.2 ℃

Wednesday

Humidity

45 %

12.4 ℃

Thursday

Humidity

40 %

13.1 ℃

Friday

Humidity

37 %

13.9 ℃

Saturday

Humidity

37 %

14.5 ℃

Best time to visit San Juan, Puerto Rico

San Juan's climate offers warm weather to travelers throughout the whole year cycle. Still, each season marks special opportunities. When picking a convenient time for your vacation, you should consider prices, weather, peak tourism periods, etc. Based on your travel expectations, you can choose the season that will meet your preferences about your Puerto Pico journey.

First, the best time to visit San Juan Puerto Rico can be from December to April. Come to San Juan during that time and enjoy fresh weather and picturesque beaches empty of the crowds of locals. Yet, various local festivals are what make this season busy with tourists.

Besides, you can enjoy the favorable weather in San Juan Puerto Rico during the period between April and June. It is because the average temperature in summer varies around 87°F (31°C). It is much warmer than in winter when the average temperature rarely exceeds 72°F (22°C).

Next, summer through fall also presents a convenient season for your travel to Puerto Rico. Those who come to San Juan during that time can enjoy both an affordable vacation and warm beaches. Isn’t it what every avid traveler is looking for? Moreover, the longest days between sunrise and sunset in San June are exactly in June.

Due to the long days, convenient weather conditions, and affordability, coming to Puerto Rico during that time will allow you to get the most out of your vacation. Yet, keep in mind that the weather in San Juan Puerto Rico in November supplies the visitors with the wet season. Therefore, if you are looking forward to the dryer weather, consider June rather than the late fall period.

San Juan weather by month

San Juan Puerto Rico winter weather

The weather in Puerto Rico in December provides travelers with a warm average temperature that varies between a minimum of 75.9°F (24.4°C) and a maximum of 80.8°F (27.1°C). The typical high temperature in San Juan is similar to the one in November. It is moderately hot and reaches 80.8°F (27.1°C).

Then, Puerto Rico weather in January presents vacationers with a relatively cold winter month. The average temperature ranges between a minimum of 74.7°F (23.7°C) and a maximum of 79.9°F (26.6°C). Yet, the local tropical climate implies that January and March are the coldest months in San Juan. Their average high temperature is around 79.9°F (26.6°C).

The weather in San Juan in February provides travelers with a surprisingly warm winter month. The average temperature ranges from a maximum of 80.1°F (26.7°C) and a minimum of 74.1°F (23.4°C). Yet, the common high temperature in February is similar to the one in January – around 80.1°F (26.7°C).

The place at the local hotels will cost you slightly less than $100 per night during these months. For this Caribbean island, winter is the peak tourist season which makes it challenging to find cheap accommodation. It is because the winter weather in San Juan Puerto Rico is favorable for a warm vacation with its average highs of 80°F (26.6°C).

When you come to San Juan during winter, be ready for the higher housing rates as well as the bright events with the Christmas celebration. It is because the winter holidays in Puerto Rico – similar to other Hispanic cultures – continue through January. Travelers choosing San Juan as their journey destination in winter can enjoy a variety of exciting events during that season:

• Nochebuena welcomes you to the Christmas Eve celebration in late December.
• Old San Juan’s White Christmas Festival as well as Lighting of the Town of Bethlehem go accompanied by favorable weather in Puerto Rico in December.
• Fiesta de Los Reyes Magos celebration takes place in early January.
• San Sebastián Street Festival presents the largest street celebration in Puerto Rico in the middle of January
• Fiesta del Acabe del Café invites travelers to a bright festival in early February. Come and enjoy various hot drinks and popular music.
• The Puerto Rico Open tournament is available to you in San Juan in late February.
• Casals Festival welcomes visitors to the annual music event from February through March.

What is the weather like in the spring in San Juan - Puerto Rico?

Puerto Rico weather in March presents tourists with a hot month. The average high temperature during March in San Juan ranges from 73.9°F (23.3°C) to 79.9°F (26.6°C). Along with January, March provides the coldest weather in Puerto Rico.

Similar to March, Puerto Rico weather in April welcomes vacationers with moderate warmth. Yet, the average high temperature varies from 75.2°F (24°C) to 81.1°F (27.3°C). The temperature in San Juan Puerto Rico in April offers favorably warm conditions for your spring vacation.

In May, the Caribbean island’s weather is warm and favorable for the coastal vacation. The average temperature in San Juan Puerto Rico ranges from 76.6°F (24.8°C) to 82.4°F (28°C). In late spring, the average high temperature is no different than in April – around 82.4°F (28°C).

On the whole, the period between April and June supplies you with breezy and sunny weather for your journey to San Juan. Moreover, there are no winter crowds of tourists in Puerto Rico from the middle of spring and early summer. Thus, even four-star hotels start to invite travelers to their housing for less than $200 per night. What is more, while June offers the hottest temperature in San Juan Puerto Rico, it is also rich in bright events worth visiting:

• Día Nacional de la Zalsa invites you to the musical festival in March.
• Taste of Rum is an official rum festival in March.
• Saborea presents you with a street food festival in April.
• Good Friday and Easter Sunday take place in April and occur islandwide.
• Campechada invites you to the bright art festival in May.

Summer weather in San Juan, Puerto Rico

If you travel to Puerto Rico in June, expect moderately hot weather. In early summer, the temperature in San Juan Puerto Rico varies between an average low of 78.3°F (25.7°C) and an average high of 84.2°F (29°C). The weather on this Caribbean island in June is not much different than in May.

For those who come to San Juan in July, Puerto Rico presents another warm summer month. Expect an average temperature to vary from 78.8°F (26°C) to 84.2°F (29°C). An average high temperature in the middle of summer is as hot as in June – 84.2°F (29°C).

August provides travelers with surprisingly warm San Juan weather in late summer. An average temperature varies from 79.2°F (28.2°C) to 85.1°F (29.5°C). While an average low temperature in August is 79.2°F (26.2°C), an average high temperature reaches 85.1°F (29.5°C). Moreover, the heat index in late summer in San Juan is 96.8°F (36°C).

Summer season in Puerto Rico is rich in bright events to visit:

• Festival de la Piña Paradisíaca invites you to the annual pineapple festival in June.
• Puerto Rico Restaurant Week presents you with an annual dining celebration in June.
• Noche de San Juan is a coastal celebration that marks the shortest night and the longest day. This annual event takes place on June 23rd.
• Aibonito Flower Festival offers the largest plant show taking place from late June through early July.
• San Juan International Billfish Tournament and SOFO Culinary Fest provide the coastal dining events in August.

San Juan fall weather

The hot weather in Puerto Rico in September still keeps the warmth from late summer. In early fall, the average temperature varies from a minimum of 79.2°F (26.2°C) to a maximum of 84.9°F (29.4°C). The average high temperature in September is similar to the one in August – 84.9°F (29.4°C). Moreover, in September, you can join the annual Coffee and Chocolate Exhibition and enjoy a variety of hot drinks.

Next, Puerto Rico weather in October presents vacationers with another warm fall month. The temperature ranges from 79.2°F (26.2°C) to 84.6°F (29.2°C). The average high temperature in October in Puerto Rico is similar to the one in September and reaches 84.6°F (29.2°C).

Finally, in November, San Juan welcomes travelers with favorably warm weather. The temperature varies between an average low of 77.9°F (25.5°C) and an average high of 83.1°F (28.4°C). The average high-temperature San Juan in late fall is similar to October with its still warm 83.1°F (28.4°C).

Water temperature in San Juan, Puerto Rico

Keep track of the water temperature in San Juan Puerto Rico with a monthly forecast below:

• January presents you with moderately warm sea temperatures – between 78.4°F (25.4°C) and 80.3°F (27.3°C).
• In February, expect the coldest sea temperature ranging from 77.5°F (24.9°C) to 79.4°F (26.4°C).
• In March, the sea in San Juan is as warm as from 78.1°F (25.4°C) to 79.1°F (26.4°C).
• The sea temperature in April varies between 78.8°F (25.5°C) and 81°F (27.7°C).
• In May, the water reaches 80.2°F (26.4°C) to 81.8°F (28°C).
• The sea temperature in Puerto Rico in June ranges between 81.6°F (27.1°C) and 83.6°F (29.1°C).
• July provides you with the as warm sea as 82.2°F (27.4°C) to 84.4°F (29.6°C).
• In August, the water temperature ranges between 83.4°F (28.2°C) and 85°F (29.8°C).
• The sea in September is the warmest with its temperature of 83.9°F (28.5°C) to 85.6°F (30.2°C).
• In October, the water temperature varies from 83.4°F (28.2°C) to 85°F (29.8°C).
• November in San Juan provides the vacationers with the as warm sea as 82.8°F (28°C) to 83.8°F (29°C).
• In December, expect the water temperature to range from 81.1°F (27°C) to 82.4°F (28.3°C).

FAQs about San Juan Puerto Rico weather

What is the rainy season in Puerto Rico?

If you travel to Puerto Rico at a time between April and November, be prepared for the intense rainy season. Yet, the annual San Juan weather forecast implies that the amount of rain is not the same across this Caribbean island. Due to Puerto Rico’s unique topography, the rainfall varies from 29.32 inches (745 mm) on Magueyes Island to 171.09 inches (4,346 mm) in Pico del Este.

What is hurricane season in Puerto Rico?

Travelers choosing Puerto Rico as their vacation destination between early June and late November should be ready for the annual hurricane season. The cyclone activity reaches its peak in September. Yet, while the hurricane season takes place annually, it does not severely impact Puerto Rico every year.

What is the rainiest month in San Juan?

February presents vacationers with the rainiest month in San Juan. The average rainfall reaches 1.0 inches (25.2 mm) in late winter. Keep in mind that the rainless season in Puerto Rico covers more than nine months – from March 15 through December 19. Besides, June in San Juan offers the least rain, with an average rainfall of around 0.1 inches (2.54 mm).

What is the hottest month in San Juan Puerto Rico?

San Juan Puerto Rico weather is the hottest as well as the wettest in August. In the late summer season, the average temperature varies around 88°F (31°C). Meanwhile, the humidity level reaches 7 inches (1,800 mm) of rain. Keep in mind that the wetter and colder weather is typical in San Juan and the northern coast. Ponce and the southern coast offer warmer and dryer weather conditions.

What are the coldest months in Puerto Rico?

Travelers whose destination is Puerto Rico should keep in mind that the coldest month there is January. San Juan weather in January presents the vacationers with an average low temperature of around 70°F (21°C). The average high temperature varies around 83°F (28°F).