Honolulu Weather in May
During May, Honolulu experiences high daytime temperatures of 27°C (81°F) and cooler nights around 23°C (73°F). Some rainfall is typical during this period.
Rainfall in Honolulu in May
Historically, May sees about 9 days of rain, with a monthly average of 28 mm (1.1 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Honolulu in May
The perfect temperature in Honolulu in May makes it a solid month to visit, with 27°C (81°F) during the day and 23°C (73°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are mild at around 23°C (73°F), which is comfortable for most people.
Sunshine in Honolulu in May
Expect a lot of sunshine this month, with about 281 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in Honolulu in May
In May, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.
Average water temperature in May
With water at 25°C (77°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.For additional travel inspiration, 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 Honolulu's climate page.
Honolulu Temperature in May
Min Temperature
23°C (73°F)
Max Temperature
27°C (81°F)
Water Temperature
25°C (77°F)
Chance of Rain
30%
Precipitation
28 mm (1.1 in)
Rainy days
9 days
Humidity
66%
Windspeed
4 m/s (8 knots)
Sunshine
281 hours
Percentage Sunshine
69%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Honolulu typically stay consistent throughout May, with daily highs averaging around 27°C (81°F). Nights are warm, with lows around 22°C (72°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 Honolulu in May
Browse day-by-day weather records for Honolulu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Honolulu historical weather extremes in May
Based on 50 years of weather observations in Honolulu between 1976 and 2026, these are the recorded extremes.
- On May 31, 1992, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 23°C (73°F), recorded on May 7, 1981.
- The coldest night in May in Honolulu was on May 20, 1985, with a minimum of 16°C (61°F).
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 Honolulu in May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Honolulu 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 Honolulu's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Honolulu climate overview or explore weather in the United States of America.
