Weather Guide

San Jose, San Jose, Costa Rica Average Monthly Weather

Weather score66Good annual avg

Best months: February, March, January

Across the year, average daytime temperatures are around 27°C, sunshine averages 6.7h per day, and rainfall totals about 1831mm.

San Jose, San Jose, Costa Rica, Costa Rica travel weather guide
Photo by César Badilla Miranda on Unsplash

Annual weather

Annual averages

Temp

27°C

Rain

1831mm

Annual total

Sun

6.7h

Weather score

66

Good avg

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
Weather scoreWeather score

Trip feel

Warm

Average highs sit around 27°C, giving warm days by monthly-average standards.

Wet

Rainfall averages 250mm, so showers are a real planning factor.

Some sun

Sunshine averages 5.8h per day, enough for a balanced month.

Map

Weather map

Compare San Jose, San Jose, Costa Rica with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

View on map

August27°C average high

August is close to San Jose's usual daytime heat, with little temperature swing across the year.

Warmest monthsAll year

Daytime heat stays consistently warm through the year.

August250mm average rain

August is wetter than San Jose's yearly average, so flexible plans matter more.

Driest monthsJanuary to April and November to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

August5.8 hours average sun

August is one of San Jose's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsJanuary to April

This stretch has the strongest sunshine in the monthly averages.

Weather score

View on map

August53 weather score

August scores below San Jose's yearly average, so the weather trade-offs are more noticeable.

Best weather monthsJanuary to April and December

These months have the strongest weather score in the monthly averages.

Hotels in San Jose, San Jose, Costa Rica