Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
August verdict
Guanacaste, Guanacaste, Costa Rica in August
Weather score54Mixed
Mixed for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 5.4h per day, enough for a balanced month. Rainfall averages 232mm, so showers are a real planning factor.
August weather
Monthly averages
Temp
31°C
Rain
232mm
Sun
5.4h
Sea
29°C
Weather score
54
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 232mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.4h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Guanacaste, Guanacaste, Costa Rica with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is close to Guanacaste's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
August232mm average rain
August is wetter than Guanacaste'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.
Sun
August5.4 hours average sun
August is below Guanacaste's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August29°C average sea
August is one of Guanacaste's warmest sea months, when swimming comfort is usually strongest.
Warmest seaApril to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
August54 weather score
August scores below Guanacaste'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 Guanacaste, Guanacaste, Costa Rica
Marriott
JW Marriott Guanacaste Resort & SpaGuanacaste, Costa Rica
W Costa Rica – Reserva ConchalGuanacaste, Costa Rica
The Westin Reserva Conchal, an All-Inclusive Golf Resort & SpaGuanacaste, Costa Rica
El Mangroove, Autograph CollectionGuanacaste, Costa Rica
Planet Hollywood Costa Rica, An Autograph Collection All-Inclusive ResortGuanacaste, Guanacaste, Costa Rica