Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
March verdict
Cook Islands in March
Weather score65Good
Good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 0h per day, so this is not one of the brighter months. Rainfall averages 188mm, so showers are a real planning factor.
March weather
Monthly averages
Temp
30°C
Rain
188mm
Sun
0h
Sea
28°C
Weather score
65
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 188mm, so showers are a real planning factor.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Cook Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
March30°C average high
March is close to Cook Islands' usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
March188mm average rain
March is wetter than Cook Islands' yearly average, so flexible plans matter more.
Driest monthsJune to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
March0 hours average sun
March is close to Cook Islands' usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
March28°C average sea
March is one of Cook Islands' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJanuary to May and December
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
March65 weather score
March is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to November
These months have the strongest weather score in the monthly averages.