May weather forecast
Waimanalo, HI

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Weather in May

May, the last month of the spring in Waimanalo, is another warm month, with temperature in the range of an average low of 74.1°F (23.4°C) and an average high of 77.7°F (25.4°C).

Temperature

May denotes a minimal variation in the average high-temperature to a still moderately hot 77.7°F (25.4°C) from April's 76.1°F (24.5°C). Registering an almost steady temperature, Waimanalo's nights in May see an average low of 74.1°F (23.4°C).

Humidity

In Waimanalo, the average relative humidity in May is 75%.

Rainfall

In Waimanalo, in May, it is raining for 15.8 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 13h and 10min.
On the first day of May in Waimanalo, Hawaii, sunrise is at 5:59 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 7:09 pm HST.

Sunshine

In Waimanalo, the average sunshine in May is 10.8h.

UV index

The months with the lowest UV index in Waimanalo are January through June, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the temperature in May in Waimanalo?

Waimanalo in May has an average high-temperature of 77.7°F (25.4°C) and an average low-temperature of 74.1°F (23.4°C).

What is the average humidity in May in Waimanalo?

In Waimanalo, the average relative humidity in May is 75%.

How many days does it rain in May in Waimanalo?

In Waimanalo, Hawaii, during May, the rain falls for 15.8 days and regularly aggregates up to 0.98" (25mm) of precipitation.

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

The average day length in May in Waimanalo, Hawaii, is 13h and 10min.

What time are sunrise and sunset in May in Waimanalo?

In May, on the first day of the month, sunrise is at 5:59 am and sunset at 6:56 pm. On the last day of the month, in Waimanalo, sunrise is at 5:48 am and sunset at 7:09 pm HST.

How long on average sun shines in May in Waimanalo?

The average sunshine duration in May in Waimanalo, Hawaii, is 10.8h.

When is the lowest UV index in Waimanalo?

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

What is the UV index reading in May in Waimanalo?

The average daily maximum UV index in May in Waimanalo is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Waimanalo, HI

Average temperature in May - Waimanalo, HI
  • Average high temperature in May: 77.7°F

The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).

  • Average low temperature in May: 74.1°F

The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).

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Average pressure in May
Waimanalo, HI

Average pressure in May - Waimanalo, 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).

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Average wind speed in May
Waimanalo, HI

Average wind speed in May - Waimanalo, HI
  • Average wind speed in May: 11.6mph

The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).

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Average humidity in May
Waimanalo, HI

Average humidity in May - Waimanalo, HI
  • Average humidity in May: 75%

The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).

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Average rainfall in May
Waimanalo, HI

Average rainfall in May - Waimanalo, HI
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days in May
Waimanalo, HI

Average rainfall days in May - Waimanalo, HI
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).

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

Average daylight in May / Average sunshine in May - Waimanalo, 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 5min

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 36min).

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Average sunshine days in May
Waimanalo, HI

Average sunshine days in May - Waimanalo, HI
  • Average sunshine days in May: 9.3 days

The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).

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Average UV index in May
Waimanalo, HI

Average UV index in May - Waimanalo, 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).

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Average cloud cover in May
Waimanalo, HI

Average cloud cover in May - Waimanalo, HI
  • Average cloud cover in May: 29

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).

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Average visibility in May
Waimanalo, HI

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

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