Mild
Average highs are around 25°C, so days are mild rather than hot.
January verdict
Koloa, Hawaii, United States in January
Weather score56Good
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 5.7h per day, enough for a balanced month. Rainfall averages 215mm, so showers are a real planning factor.
January weather
Monthly averages
Temp
25°C
Rain
215mm
Sun
5.7h
Sea
24°C
Weather score
56
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 215mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.7h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Koloa, Hawaii, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January25°C average high
January 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.
Rain
January215mm average rain
January is one of Koloa's wettest months, so rain is likely to be a major planning factor.
Driest monthsJune to July and September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
January5.7 hours average sun
January is below Koloa's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January24°C average sea
January is below Koloa's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJune to November
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
January56 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsMay to October
These months have the strongest weather score in the monthly averages.
