May weather forecast
Kilauea, HI

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Weather in May

May, the last month of the spring in Kilauea, is another warm month, with temperature in the range of an average low of 72.1°F (22.3°C) and an average high of 76.8°F (24.9°C).

Temperature

Kilauea signifies an average high-temperature of a still warm 76.8°F (24.9°C) in May, closely mirroring the 74.8°F (23.8°C) of April. Kilauea's nighttime temperature in May shows a minor descent, with a steady average of 72.1°F (22.3°C).

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Kilauea, in May, it is raining for 18.5 days, with typically 1.57" (40mm) of accumulated precipitation. In Kilauea, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.

Daylight

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

Sunshine

In Kilauea, the average sunshine in May 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in May translates into this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What are the temperatures in Kilauea in May?

In Kilauea, 76.8°F (24.9°C) is the average high-temperature and 72.1°F (22.3°C) is the average low-temperature during May.

What is the average humidity in May in Kilauea?

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

How many days does it rain in May in Kilauea?

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

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

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

When is the sunrise / sunset in May in Kilauea?

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

How long on average sun shines in May in Kilauea?

The average sunshine duration in May in Kilauea is 9.3h.

What is the month with the lowest UV index in Kilauea?

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

What is the UV index intensity in May in Kilauea?

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

Average temperature in May
Kilauea, HI

Average temperature in May - Kilauea, 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
Kilauea, HI

Average pressure in May - Kilauea, 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
Kilauea, HI

Average wind speed in May - Kilauea, 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
Kilauea, HI

Average humidity in May - Kilauea, 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
Kilauea, HI

Average rainfall in May - Kilauea, 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
Kilauea, HI

Average rainfall days in May - Kilauea, 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 daylight in May /
Average sunshine in May
Kilauea, HI

Average daylight in May / Average sunshine in May - Kilauea, 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
Kilauea, HI

Average sunshine days in May - Kilauea, 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
Kilauea, HI

Average UV index in May - Kilauea, 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
Kilauea, HI

Average cloud cover in May - Kilauea, 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
Kilauea, HI

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

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