Barú Weather in September

With daytime temperatures of 26°C (79°F) and nighttime lows of 21°C (70°F), September in Barú brings high temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Barú in September

As part of the rainy season, Barú sees around 22 days of rain in September, with an average of 835 mm (33 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours.

Temperature in Barú in September

Expect highs of 26°C (79°F) in Barú in September, with nights dropping to around 21°C (70°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 21°C (70°F) overnight, nights are warm enough to sit outside comfortably in light clothing.

Sunshine in Barú in September

The area enjoys a balanced 153 hours of sunlight, ensuring it's neither too rainy nor too sunny.

September in Barú has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

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For a detailed overview over the year and the best time to visit Costa Rica, check out our Barú's climate page.

Barú Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 74%  

Precipitation 835 mm (33 in)  

Rainy days 22 days  

Humidity 83% *  

Sunshine 153 hours *  

Percentage Sunshine *  

* Data from: Quepos, Costa Rica (39 KM, 24 Miles).

What to Wear in Barú in September

Warm but pleasant conditions in Barú in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Barú in September

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

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 Costa Rica, check out our Barú's climate page.

More climate data for Barú

Temperature Rainfall Sunshine Humidity

See the full Barú climate overview or explore weather in Costa Rica.