May weather forecast
Kapalua, HI

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Weather in May

May in Kapalua, Hawaii, signals the steady approach of summer. The transition from spring to summer is accompanied by an increase in temperature, maxing around 76.8°F (24.9°C). Sheldon showers become less frequent, with rainfall decreasing to 0.55" (14mm), a substantial reduction compared to the numbers of the prior month. Sea temperatures, however, remain unchanged, making the ocean still a very appealing prospect for water activities. A visible increment in sunshine hours commences in May, marking a pleasant modification in the weather event.

Temperature

Kapalua's weather in May displays an average high-temperature of a still warm 76.8°F (24.9°C), showing minor disparity from April's 75.4°F (24.1°C). During the month of May, Kapalua identifies an average nighttime low-temperature of 73°F (22.8°C), slightly lower than its daytime counterpart.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Kapalua, during May, the rain falls for 10.3 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Kapalua, during the entire year, the rain falls for 112.6 days and collects up to 7.91" (201mm) of precipitation.

Ocean temperature

In Kapalua, in May, the average water temperature is 77°F (25°C).
Note: Water temperatures from 77°F (25°C) to 84.2°F (29°C) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

In May, the average length of the day is 13h and 9min.
On the first day of May, sunrise is at 5:55 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:04 pm HST.

Sunshine

In May, the average sunshine is 10.6h.

UV index

The months with the lowest UV index 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 health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in May transforms into the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take caution! The UV rays from the Sun gain strength from sand and water reflections.

Frequently asked questions

What are May temperatures?

In Kapalua, in May, the average high-temperature is 76.8°F (24.9°C), and the average low-temperature is 73°F (22.8°C).

What is the average humidity in May?

In Kapalua, the average relative humidity in May is 76%.

How much does it rain in May?

In Kapalua, Hawaii, in May, during 10.3 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How warm is the water in May in Kapalua?

In Kapalua, the average seawater temperature in May is 77°F (25°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Kapalua have in May?

In May, the average day length is 13h and 9min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:04 pm HST.

How many hours of sunshine does Kapalua have in May?

In May, the average sunshine duration is 10.6h.

What is the month with the lowest UV index?

The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6.

How high is the UV index in May?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Kapalua, HI

Average temperature in May - Kapalua, HI
  • Average high temperature in May: 76.8°F

The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in May: 73°F

The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).

Average pressure in May
Kapalua, HI

Average pressure in May - Kapalua, HI
  • Average pressure in May: 30.04"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

Average wind speed in May
Kapalua, HI

Average wind speed in May - Kapalua, HI
  • Average wind speed in May: 11.7mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).

Average humidity in May
Kapalua, HI

Average humidity in May - Kapalua, HI
  • Average humidity in May: 76%

The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).

Average rainfall in May
Kapalua, HI

Average rainfall in May - Kapalua, HI
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in May
Kapalua, HI

Average rainfall days in May - Kapalua, HI
  • Average rainfall days in May: 10.3 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).

Average sea temperature in May
Kapalua, HI

Average sea temperature in May - Kapalua, HI
  • Average sea temperature in May: 77°F

The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

Average daylight in May /
Average sunshine in May
Kapalua, HI

Average daylight in May / Average sunshine in May - Kapalua, 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: 10h and 4min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in May
Kapalua, HI

Average sunshine days in May - Kapalua, HI
  • Average sunshine days in May: 17.2 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).

Average UV index in May
Kapalua, HI

Average UV index in May - Kapalua, 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
Kapalua, HI

Average cloud cover in May - Kapalua, HI
  • Average cloud cover in May: 30

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in May
Kapalua, HI

Average visibility in May - Kapalua, 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).

Kapalua, Hawaii, USA

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