Koloa Weather in April
Thinking of visiting Koloa in April? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 21°C (70°F) at night, with some rainfall likely.
Rainfall in Koloa in April
Typically around 18 days of rainfall are expected, averaging 45 mm (1.8 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Koloa in April
Weather in Koloa is at its perfect in April. Highs reach 25°C (77°F), while nights settle around 21°C (70°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 21°C (70°F), evenings stay pleasantly warm.
Sunshine in Koloa in April
Enjoy a sunny month with about 203 hours of sunshine, the clear skies make Koloa even more beautiful.
Wind Speed in Koloa in April
Average wind conditions reach 5 m/s (10 knots) in April. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.
Average water temperature in April
The water temperature is 25°C (77°F), which most people find very comfortable. A good month for swimming and water sports.If you're planning additional trips, our weather planner can help you find destinations that match your weather preferences.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Koloa's climate page.
Koloa Temperature in April
Min Temperature
21°C (70°F)
Max Temperature
25°C (77°F)
Water Temperature
25°C (77°F) *
Chance of Rain
59%
Precipitation
45 mm (1.8 in)
Rainy days
18 days
Humidity
75% *
Windspeed
5 m/s (10 knots) *
Sunshine
203 hours *
Percentage Sunshine
53% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Koloa typically stay consistent throughout April, with daily highs averaging around 25°C (77°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for Koloa in April
Browse day-by-day weather records for Koloa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Koloa historical weather extremes in April
Based on 28 years of weather observations in Koloa between 1998 and 2026, these are the recorded extremes.
- The warmest day in April was on April 5, 2018, with a maximum of 30°C (86°F).
- On April 1, 2013, Koloa saw its coldest April day with temperatures maxing out at 22°C (72°F).
- The coldest night in April in Koloa was on April 1, 2013, with a minimum of 15°C (59°F).
Best Places in the United States of America in April
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in April →
perfect weather
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What to Wear in Koloa in April
For Koloa in April, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 25°C (77°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Koloa in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Koloa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Koloa climate overview or explore weather in the United States of America.
