2026 Climate Averages

Weather in San José in May

It's a rainy period, but great for indoor activities, museums, and lower prices.

Climate Overview

May is a wet time to visit San José. San José has a Warm climate with average yearly highs of 26°C, lows of 18°C, and approximately 27 rainy days per month.

Avg High

26°C

Avg Low

18°C

Rainy days

27days

Daylight

12.6h

Is May a good time to visit San José?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Daylight

Sunrise

5:16 AM

Sunset

5:51 PM

Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 25°C 17°C 9 Excellent (best)
February 26°C 16°C 2 Excellent (best)
March 27°C 16°C 2 Excellent (best)
April 28°C 17°C 18 Excellent (best)
May 26°C 18°C 27 Wet
June 25°C 17°C 28 Wet
July 25°C 17°C 20 Wet
August 25°C 17°C 27 Wet
September 25°C 16°C 30 Wet
October 24°C 17°C 29 Wet
November 23°C 17°C 28 Wet
December 24°C 16°C 14 Excellent (best)

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for May

Lightweight clothes, sunglasses, sunscreen, and breathable fabrics.

Climate: Warm
Travel Context Great for outdoor dining and evening strolls.

Planning a trip to San José?

Common Questions

Is May a good time to visit San José? +

May is typically Wet for visiting San José, with average highs of 26°C and around 27 rainy days.

What should I pack for San José in May? +

With highs of 26°C and lows of 18°C in {month}, we recommend: Lightweight clothes, sunglasses, sunscreen, and breathable fabrics.

Does it rain a lot in San José in May? +

San José typically sees around 27 rainy days in May.

How many hours of daylight are there in San José in May? +

In May, San José gets approximately 12.6 hours of daylight per day.

Is May peak season in San José? +

No, May is not peak season in San José. Expect better value on accommodation and fewer tourists.

What is the best month to visit San José? +

The best months to visit San José are December, January, February, March, April, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Costa_Rica)

Last Updated: January 2026

More San José Guides

Best Time to Visit

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Things to Do

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Itineraries

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Overview

Complete travel guide for San José: top things to do, itineraries, and typical costs.

Read Full Guide

May

26° / 18°
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