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Koloa (HI) Weather and Climate: A Comprehensive Guide

Koloa maintains a fairly consistent warm average temperature. It receives a moderate amount of precipitation. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The temperature in Koloa remains steady throughout the year, providing a consistently comfortable climate. On average, daytime temperatures range from a comfortable 28°C in September to a comfortable 24°C in February.

Nighttime temperatures can drop, with average lows reaching 20°C in February. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Koloa has a moderate amount of precipitation, averaging 693 mm of rainfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 83 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, July, still receives a respectable 42 mm of rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Koloa enjoys sunny spells year-round. August sees up to 8.8 hours of daily sunshine, perfect for a sunny trip. December, the least sunny month, still offers a generous 5.4 hours of sun despite this cloudier time of the year. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Lihue, the United States of America (16 KM, 10 Miles).

Daily hours of sunshine

Data from: Lihue, the United States of America (16 KM, 10 Miles).

Average water temperature

The mean water temperature over the year ranges from 24°C in January to 27°C in August.

Water temperature over the year

Data from: Lihue, the United States of America (16 KM, 10 Miles).

Forecast for Koloa (HI)

Sat   Dec 21
26°C | 19°C
S 3 m/s
broken clouds and no rain

broken clouds and no rain

Sun   Dec 22
27°C | 19°C
NE 5 m/s
3.1 mm
broken clouds and small chance of rain

broken clouds and small chance of rain

Mon   Dec 23
27°C | 21°C
E 7 m/s
5.6 mm
partly cloudy and rain

partly cloudy and rain

The best time of year to visit Koloa in the United States of America

During the months of January, February, March, April, May and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Koloa?
    September has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Koloa?
    The coldest month is February with an average maximum temperature of 24°C.
  • Which is the wettest month in Koloa?
    December tops the wettest month list with 83 mm of rainfall.
  • Which is the driest month in Koloa?
    July is the driest month with 42 mm of precipitation.
  • Which is the sunniest month in Koloa?
    August is the sunniest month with an average of 263 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.