Hot
Average highs reach 33°C, so days can feel very hot.
March verdict
Very good for holiday weather
Average highs reach 33°C, so days can feel very hot. Sunshine averages 7.9h per day, enough for a balanced month. Rainfall averages 4mm, which is relatively low for holiday planning.
Monthly averages
Temp
33°C
Rain
4mm
Sun
7.9h
Sea
27°C
Weather score
77
Very good
Hot
Average highs reach 33°C, so days can feel very hot.
Drier
Rainfall averages 4mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.9h per day, enough for a balanced month.
Warm sea
Sea temperatures average 27°C, so swimming is usually comfortable by monthly-average standards.
Map
Compare Guanacaste, Guanacaste, Costa Rica with nearby places by weather score, rain, sun, temperature, and swim conditions.
March33°C average high
March 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.
March4mm average rain
March is one of Guanacaste's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March7.9 hours average sun
March is one of Guanacaste's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary to April
This stretch has the strongest sunshine in the monthly averages.
March27°C average sea
March is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaApril to October
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
March77 weather score
March is one of Guanacaste's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to April and December
These months have the strongest weather score in the monthly averages.
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