Warm
Average highs sit around 26°C, giving warm days by monthly-average standards.
Weather Guide
Southern Cook Islands, Cook Islands Average Monthly Weather
Weather score71Very good annual avg
Best months: October, September, August
Across the year, average daytime temperatures are around 28°C, sunshine averages 0h per day, and rainfall totals about 1593mm. Sea temperatures average 26°C across the year.
Annual weather
Annual averages
Temp
28°C
Rain
1593mm
Annual total
Sun
0h
Sea
26°C
Weather score
71
Very good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 79mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 0h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Southern Cook Islands, Cook Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July26°C average high
July is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJanuary to May and December
This stretch sets the upper range for average daytime heat.
Rain
July79mm average rain
July sits on the drier side of Southern Cook Islands' year, which helps with sightseeing and transfers.
Driest monthsJune to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July0 hours average sun
July is close to Southern Cook Islands' usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
Sea temperature
July25°C average sea
July is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
Weather score
July72 weather score
July sits close to Southern Cook Islands' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune and August to November
These months have the strongest weather score in the monthly averages.