Mild
Average highs are around 25°C, so days are mild rather than hot.
March verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 176mm, so some wet days are possible.
Monthly averages
Temp
25°C
Rain
176mm
Sun
6.7h
Sea
24°C
Weather score
60
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Showers
Rainfall averages 176mm, so some wet days are possible.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Compare Koloa, Hawaii, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
March25°C average high
March is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
March176mm average rain
March sits near Koloa's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJune to July and September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March6.7 hours average sun
March sits close to Koloa's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
March24°C average sea
March is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJune to November
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
March60 weather score
March scores below Koloa's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMay to October
These months have the strongest weather score in the monthly averages.