Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The advent of May reveals an average high-temperature of a still warm 77°F (25°C), showing minimal difference from the prior month. During the nights of May, Kahului records an average low-temperature of 73.4°F (23°C), reflecting a modest decrease from daytime highs.Humidity
The average relative humidity in May in Kahului is 75%.Rainfall
In Kahului, in May, it is raining for 8.3 days, with typically 0.43" (11mm) of accumulated precipitation. In Kahului, Hawaii, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.Ocean temperature
In Kahului, the average seawater temperature in May is 77.4°F (25.2°C).Note: Water temperature from 77°F (25°C) to 84.2°F (29°C) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.
Daylight
In Kahului, the average length of the day in May is 13h and 8min.On the first day of the month, sunrise is at 5:54 am and sunset at 6:50 pm. On the last day of May, sunrise is at 5:44 am and sunset at 7:03 pm HST.
Sunshine
The average sunshine in May is 11h.UV index
The months with the lowest UV index in Kahului are January through June, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, a daily UV index of 6 turns into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be attentive! The UV exposure is heightened with reflections from sand and water.
Frequently asked questions
What is the usual temperature for Kahului in May?
What is the average humidity in May in Kahului?
How many days does it rain in May in Kahului?
What is the water temperature in May in Kahului?
How many hours of daylight does Kahului have in May?
When are sunrise and sunset in May in Kahului?
How many hours of sunshine does Kahului have in May?
What is the month with the lowest UV index in Kahului?
What is the UV index intensity in May in Kahului?
Average temperature in May
Kahului, HI
- Average high temperature in May: 77°F
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in May: 73.4°F
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure in May
Kahului, HI
- Average pressure in May: 30.04"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in May
Kahului, HI
- Average wind speed in May: 11.7mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in May
Kahului, HI
- Average humidity in May: 75%
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in May
Kahului, HI
- Average rainfall in May: 0.43"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in May
Kahului, HI
- Average rainfall days in May: 8.3 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average sea temperature in May
Kahului, HI
- Average sea temperature in May: 77.3°F
The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (75.6°F).
Average daylight in May /
Average sunshine in May
Kahului, HI
- Average daylight in May: 13h and 1min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in May: 11h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in May
Kahului, HI
- Average sunshine days in May: 18.5 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in May
Kahului, HI
- Average UV index in May: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in May
Kahului, HI
- Average cloud cover in May: 25
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility in May
Kahului, HI
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Kahului, Hawaii, USA
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