May weather forecast
Hanamaulu, HI

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Weather in May

May, the last month of the spring in Hanamaulu, is another warm month, with an average temperature varying between 72.1°F (22.3°C) and 76.8°F (24.9°C).

Temperature

The shift into May uncovers an average high-temperature of a still moderately hot 76.8°F (24.9°C), subtly different from the previous month. May nights witness a slight temperature decrease, averaging at a pleasant 72.1°F (22.3°C).

Humidity

The average relative humidity in May is 76%.

Rainfall

In Hanamaulu, in May, during 18.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Ocean temperature

In Hanamaulu, the average seawater temperature in May is 78.1°F (25.6°C).
Note: For any water activity, having surface water temperatures from 77°F (25°C) to 84.2°F (29°C) is considered outstanding and highly delightful for lengthened periods.

Daylight

In Hanamaulu, Hawaii, the average length of the day in May is 13h and 12min.
On the first day of the month, sunrise is at 6:04 am and sunset at 7:03 pm. On the last day of May, sunrise is at 5:53 am and sunset at 7:17 pm HST.

Sunshine

The average sunshine in May in Hanamaulu is 9.3h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 6 in May interprets into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the average May temperature in Hanamaulu?

The average high-temperature, in May, in Hanamaulu, is 76.8°F (24.9°C), while the average low-temperature is 72.1°F (22.3°C).

What is the average humidity in May in Hanamaulu?

The average relative humidity in May in Hanamaulu, Hawaii, is 76%.

How many days does it rain in May in Hanamaulu?

In May, in Hanamaulu, the rain falls for 18.5 days. Throughout May, 1.57" (40mm) of precipitation is accumulated.

How warm is the water in May in Hanamaulu?

In Hanamaulu, in May, the average water temperature is 78.1°F (25.6°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in May in Hanamaulu?

The average day length in May in Hanamaulu is 13h and 12min.

When is the sunrise / sunset in May in Hanamaulu?

In May, on the first day of the month, sunrise is at 6:04 am and sunset at 7:03 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:17 pm HST.

How many hours of sunshine does Hanamaulu have in May?

In May, the average sunshine duration in Hanamaulu is 9.3h.

What are the months with the lowest UV index in Hanamaulu?

The months with the lowest UV index in Hanamaulu, Hawaii, are January through August, October through December, with an average maximum UV index of 6.

What is the UV index intensity in May in Hanamaulu?

The average daily maximum UV index in May in Hanamaulu is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Average temperature in May
Hanamaulu, HI

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

The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).

  • Average low temperature in May: 72.1°F

The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).

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Average pressure in May
Hanamaulu, HI

Average pressure in May - Hanamaulu, HI
  • Average pressure in May: 30.05"Hg

The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).

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Average wind speed in May
Hanamaulu, HI

Average wind speed in May - Hanamaulu, HI
  • Average wind speed in May: 10.5mph

The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).

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Average humidity in May
Hanamaulu, HI

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

The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).

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Average rainfall in May
Hanamaulu, HI

Average rainfall in May - Hanamaulu, HI
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").

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Average rainfall days in May
Hanamaulu, HI

Average rainfall days in May - Hanamaulu, HI
  • Average rainfall days in May: 18.5 days

The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).

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Average sea temperature in May
Hanamaulu, HI

Average sea temperature in May - Hanamaulu, HI
  • Average sea temperature in May: 78.2°F

The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.3°F).

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

Average daylight in May / Average sunshine in May - Hanamaulu, HI
  • Average daylight in May: 13h and 1min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).

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Average sunshine days in May
Hanamaulu, HI

Average sunshine days in May - Hanamaulu, HI
  • Average sunshine days in May: 6.7 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).

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Average UV index in May
Hanamaulu, HI

Average UV index in May - Hanamaulu, HI
  • Average UV index in May: 6

The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).

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Average cloud cover in May
Hanamaulu, HI

Average cloud cover in May - Hanamaulu, HI
  • Average cloud cover in May: 41

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).

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Average visibility in May
Hanamaulu, HI

Average visibility in May - Hanamaulu, 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).

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Hanamaulu, Hawaii, USA

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