Kahului Weather in May
Kahului in May sees high daytime temperatures of 28°C (82°F) and nighttime lows of 22°C (72°F). Moderate rainfall is typical, with around 37 mm (1.5 in) for the month.
Rainfall in Kahului in May
Typically around 8 days of rainfall are expected, averaging 37 mm (1.5 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Kahului in May
May tends to be one of the perfect months in Kahului, with 28°C (82°F) in the afternoon and 22°C (72°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 22°C (72°F), evenings stay pleasantly warm.
Sunshine in Kahului in May
The days are predominantly sunny, with an estimated total of around 275 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Kahului in May
Average wind conditions reach 5 m/s (10 knots) in May. 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 May
The water temperature is 25°C (77°F), which most people find very comfortable. A good month for swimming and water sports.To explore more travel options, our weather planner can help you discover destinations worldwide.
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 Kahului's climate page.
Kahului Temperature in May
Min Temperature
22°C (72°F)
Max Temperature
28°C (82°F)
Water Temperature
25°C (77°F)
Chance of Rain
26%
Precipitation
37 mm (1.5 in)
Rainy days
8 days
Humidity
71%
Windspeed
5 m/s (10 knots)
Sunshine
275 hours
Percentage Sunshine
68%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kahului typically stay consistent throughout May, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 20°C (68°F).
Average temperatures in May
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 May
Historical weather for Kahului in May
Browse day-by-day weather records for Kahului spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kahului historical weather extremes in May
The extremes listed below come from historical weather data collected in Kahului from 1976 through 2026.
- The warmest day in May was on May 22, 2019, with a maximum of 34°C (93°F).
- On May 19, 1985, Kahului saw its coldest May day with temperatures maxing out at 21°C (70°F).
- Nighttime temperatures dropped to 13°C (55°F) on May 13, 2012, marking the coldest May night on record.
Best Places in the United States of America in May
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 May →
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What to Wear in Kahului in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Kahului in May
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 Kahului's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Kahului climate overview or explore weather in the United States of America.
