Puerto Rico Weather in September

September in Puerto Rico averages 25°C (77°F) during the day and 21°C (70°F) at night. With only 9.4 mm (0.4 in) of rainfall expected on average, it's a largely dry month.

Rainfall in Puerto Rico in September

You can expect rain on roughly a single day based on historical data, averaging 9.4 mm (0.4 in) for the month. On the rare occasion it rains, expect a brief, moderate shower rather than a heavy downpour.

Temperature in Puerto Rico in September

September tends to be one of the perfect months in Puerto Rico, with 25°C (77°F) in the afternoon and 21°C (70°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. Nights are mild at around 21°C (70°F), which is comfortable for most people.

Sunshine in Puerto Rico in September

The city usually sees around 244 hours of sunlight, indicating many sunny days — a great month for sightseeing.

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For a detailed overview over the year and the best time to visit Spain, check out our Puerto Rico's climate page.

Puerto Rico Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 4%  

Precipitation 9.4 mm (0.4 in)  

Rainy days a single day  

Humidity 68% *  

Sunshine 244 hours *  

Percentage Sunshine 67% *  

* Data from: Las Palmas, Abkhazia, Georgia (35 KM, 22 Miles).

What to Wear in Puerto Rico in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Puerto Rico in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Spain, check out our Puerto Rico's climate page.

More climate data for Puerto Rico

Temperature Rainfall Sunshine Humidity

See the full Puerto Rico climate overview or explore weather in Spain.