When to go · September

Costa Rica in September

Best to skip this month

Consider Puerto Viejo and Tortuguero instead; many Pacific lodges shutter briefly.

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Daytime high

26°C

79°F

Overnight low

16°C

61°F

Rainfall

302 mm

wet

Crowd levels

low

quiet

Prices

low

value window

What to expect in Costa Rica in September

September brings warm weather to Costa Rica, with daytime highs around 26°C (79°F) and overnight lows near 16°C (61°F). Skies are typically distinctly rainy, with about 302 mm of rainfall on average. Consider Puerto Viejo and Tortuguero instead; many Pacific lodges shutter briefly..

September is a quiet stretch — most attractions are easy to access and you'll often have spaces to yourself. It's one of the best-value windows of the year for both flights and hotels. Peak season runs December–March, for context.

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