May weather forecast
Papaikou, HI

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Weather in May

The last month of the spring, May, is also an agreeable month in Papaikou, Hawaii, with an average temperature varying between 72.1°F (22.3°C) and 66.2°F (19°C).

Temperature

As Papaikou transitions into May, the average high-temperature stands at a still agreeable 72.1°F (22.3°C), offering little variation from the preceding month. May nights document an average temperature reading of 66.2°F (19°C).

Humidity

January, May through July, with an average relative humidity of 78%, are the least humid months in Papaikou.

Rainfall

In Papaikou, in May, it is raining for 20.2 days, with typically 1.38" (35mm) of accumulated precipitation. In Papaikou, Hawaii, during the entire year, the rain falls for 227.7 days and collects up to 27.83" (707mm) of precipitation.

Ocean temperature

In Papaikou, in May, the average water temperature is 76.8°F (24.9°C).
Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 76.8°F (24.9°C) water pleasant. (Olympic swimming events mandate water temperatures from 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in May is 13h and 5min.
On the first day of May in Papaikou, Hawaii, sunrise is at 5:50 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 6:55 pm HST.

Sunshine

In Papaikou, the average sunshine in May is 10.6h.

UV index

May through December, with an average maximum UV index of 6, are months with the highest UV index in Papaikou. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Warning! The reflection of sand and water increases the UV dose.
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Frequently asked questions

What is the average May temperature in Papaikou?

Papaikou in May has an average high-temperature of 72.1°F (22.3°C) and an average low-temperature of 66.2°F (19°C).

What are the least humid months in Papaikou?

January, May through July, with an average relative humidity of 78%, are the least humid months.

What is the average humidity in May in Papaikou?

In May, the average relative humidity in Papaikou, Hawaii, is 78%.

How much does it rain in Papaikou in May?

In May, in Papaikou, the rain falls for 20.2 days. Throughout May, 1.38" (35mm) of precipitation is accumulated.

What is the water temperature in May in Papaikou?

In Papaikou, in May, the average water temperature is 76.8°F (24.9°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.8°F (24.9°C).

How many hours of daylight does Papaikou have in May?

In Papaikou, the average day length in May is 13h and 5min.

When is the sunrise / sunset in May in Papaikou?

On the first day of May in Papaikou, Hawaii, sunrise is at 5:50 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 6:55 pm HST.

How long on average sun shines in May in Papaikou?

The average sunshine duration in May in Papaikou, Hawaii, is 10.6h.

What is the month with the highest UV index in Papaikou?

May through December, with an average maximum UV index of 6, are months with the highest UV index in Papaikou.

What is the UV index intensity in May in Papaikou?

In May, the average daily maximum UV index in Papaikou is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe 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
Papaikou, HI

Average temperature in May - Papaikou, HI
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).

  • Average low temperature in May: 66.2°F

The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).

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Average pressure in May
Papaikou, HI

Average pressure in May - Papaikou, 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).

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Average wind speed in May
Papaikou, HI

Average wind speed in May - Papaikou, HI
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).

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Average humidity in May
Papaikou, HI

Average humidity in May - Papaikou, HI
  • Average humidity in May: 78%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).

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Average rainfall in May
Papaikou, HI

Average rainfall in May - Papaikou, HI
  • Average rainfall in May: 1.38"

The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").

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Average rainfall days in May
Papaikou, HI

Average rainfall days in May - Papaikou, HI
  • Average rainfall days in May: 20.2 days

The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).

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Average sea temperature in May
Papaikou, HI

Average sea temperature in May - Papaikou, HI
  • Average sea temperature in May: 76.9°F

The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).

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

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

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in May
Papaikou, HI

Average sunshine days in May - Papaikou, HI
  • Average sunshine days in May: 3.3 days

The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).

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Average UV index in May
Papaikou, HI

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

The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).

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Average cloud cover in May
Papaikou, HI

Average cloud cover in May - Papaikou, HI
  • Average cloud cover in May: 33

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).

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Average visibility in May
Papaikou, HI

Average visibility in May - Papaikou, 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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Papaikou, Hawaii, USA

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