May weather forecast
Keoneoio, HI

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Weather in May

The last month of the spring, May, is also a moderately hot month in Keoneoio, Hawaii, with an average temperature ranging between max 75.4°F (24.1°C) and min 72.7°F (22.6°C).

Temperature

An average high-temperature of a still warm 75.4°F (24.1°C) marks May, exhibiting a close resemblance to the conditions in April. Keoneoio maintains an average low-temperature of 72.7°F (22.6°C) throughout May's nights.

Humidity

In May, the average relative humidity in Keoneoio is 77%.

Rainfall

In Keoneoio, in May, it is raining for 12.3 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, in Keoneoio, there are 136.7 rainfall days, and 13.94" (354mm) of precipitation is accumulated.

Snowfall

January through August, October through December are months without snowfall.

Daylight

In May, the average length of the day is 13h and 7min.
On the first day of May in Keoneoio, sunrise is at 5:55 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:02 pm HST.

Sunshine

In May, the average sunshine is 10.8h.

UV index

The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 6 suggests this advice:
Deflect overexposure. Sun protection is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Keoneoio in May?

During May, Keoneoio experiences an average high-temperature of 75.4°F (24.1°C) and a low-temperature of 72.7°F (22.6°C).

What is the average humidity in May?

In May, the average relative humidity is 77%.

How many days does it rain in May?

In Keoneoio, in May, it is raining for 12.3 days, with typically 0.94" (24mm) of accumulated precipitation.

When it does not snow?

January through August, October through December are months without snowfall.

How many hours of daylight does Keoneoio have in May?

The average day length in May is 13h and 7min.

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 6:50 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:02 pm HST.

How long on average sun shines in May?

In Keoneoio, the average sunshine duration in May is 10.8h.

When is the lowest UV index in Keoneoio?

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

What is the UV index reading in May in Keoneoio?

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Keoneoio, HI

Average temperature in May - Keoneoio, HI
  • Average high temperature in May: 75.4°F

The warmest month (with the highest average high temperature) is September (79°F).
The month with the lowest average high temperature is March (72.9°F).

  • Average low temperature in May: 72.7°F

The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is March (69.8°F).

Average pressure in May
Keoneoio, HI

Average pressure in May - Keoneoio, 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
Keoneoio, HI

Average wind speed in May - Keoneoio, HI
  • Average wind speed in May: 12.6mph

The windiest month (with the highest average wind speed) is June (14.4mph).
The calmest month (with the lowest average wind speed) is January (10.9mph).

Average humidity in May
Keoneoio, HI

Average humidity in May - Keoneoio, HI
  • Average humidity in May: 77%

The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January and February (76%).

Average rainfall in May
Keoneoio, HI

Average rainfall in May - Keoneoio, HI
  • Average rainfall in May: 0.94"

The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in May
Keoneoio, HI

Average rainfall days in May - Keoneoio, HI
  • Average rainfall days in May: 12.3 days

The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is September (8.1 days).

Average snowfall days in May
Keoneoio, HI

Average snowfall days in May - Keoneoio, HI
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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

Average daylight in May / Average sunshine in May - Keoneoio, 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 months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in May
Keoneoio, HI

Average sunshine days in May - Keoneoio, HI
  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is November (11.2 days).

Average UV index in May
Keoneoio, HI

Average UV index in May - Keoneoio, 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).

Average cloud cover in May
Keoneoio, HI

Average cloud cover in May - Keoneoio, HI
  • Average cloud cover in May: 28

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).

Average visibility in May
Keoneoio, HI

Average visibility in May - Keoneoio, 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).

Keoneoio, Hawaii, USA

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