Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Kahuku, Hawaii, United States in September
Weather score73Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 8.8h per day, so bright days are a strong part of the month. Rainfall averages 162mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
162mm
Sun
8.8h
Sea
27°C
Weather score
73
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 162mm, so some wet days are possible.
Bright
Sunshine averages 8.8h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 27°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Kahuku, Hawaii, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is one of Kahuku's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
Rain
September162mm average rain
September is one of the drier months, but average rainfall is still high enough to keep backup plans useful.
Driest monthsJune and September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.8 hours average sun
September is brighter than Kahuku's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September27°C average sea
September is one of Kahuku's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to November
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
September73 weather score
September is one of Kahuku's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsMay to October
These months have the strongest weather score in the monthly averages.
