May weather forecast
Keauhou, HI

Weather in May

May, the last month of the spring, in Keauhou, is also an agreeable month, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 71.1°F (21.7°C).

Temperature

In Keauhou, Hawaii, the average high-temperature is practically the same as in April - a still agreeable 71.1°F (21.7°C). In May, in Keauhou, Hawaii, the average low-temperature is 66.7°F (19.3°C).

Humidity

In Keauhou, the average relative humidity in May is 80%.

Rainfall

In Keauhou, in May, during 21.1 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 216.1 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Ocean temperature

In May, the average ocean temperature in Keauhou, Hawaii, is 77.5°F (25.3°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In May, the average length of the day in Keauhou is 13.1h.

Sunshine

May has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

May through October, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the average humidity in May in Keauhou?

The average relative humidity in May in Keauhou is 80%.

How many days does it rain in May in Keauhou?

In Keauhou, in May, during 21.1 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

What is the water temperature in May in Keauhou?

In Keauhou, in May, the average water temperature is 77.5°F (25.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

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

The average length of the day in May in Keauhou, Hawaii, is 13.1h.

What month has the most sunshine in Keauhou?

May has the most sunshine of the year, with an average of 10.7h of sunshine.

How many hours of sunshine does Keauhou have in May?

In May, the average sunshine is 10.7h.

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

Months with the highest UV index in Keauhou are May through October, with an average maximum UV index of 6.

How high is the UV index in May in Keauhou?

In May, the average daily maximum UV index in Keauhou is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.

Average temperature in May
Keauhou, HI

Average temperature in May - Keauhou, HI
  • Average high temperature in May: 71.1°F

The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).

  • Average low temperature in May: 66.7°F

The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).

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Average pressure in May
Keauhou, HI

Average pressure in May - Keauhou, HI
  • Average pressure in May: 30.03"

The month with the highest atmospheric pressure is April (30.04").
Months with the lowest atmospheric pressure are September and October (29.96").

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Average wind speed in May
Keauhou, HI

Average wind speed in May - Keauhou, HI
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).

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Average humidity in May
Keauhou, HI

Average humidity in May - Keauhou, HI
  • Average humidity in May: 80%

Months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).

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Average rainfall in May
Keauhou, HI

Average rainfall in May - Keauhou, HI
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in May
Keauhou, HI

Average rainfall days in May - Keauhou, HI
  • Average rainfall days in May: 21.1 days

The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).

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Average sea temperature in May
Keauhou, HI

Average sea temperature in May - Keauhou, HI
  • Average sea temperature in May: 77.4°F

The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (76°F).

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

Average daylight in May / Average sunshine in May - Keauhou, HI
  • Average daylight in May: 13.1h

The month with the longest days is June (Average daylight: 13.3h).
The month with the shortest days is December (Average daylight: 11h).

  • Average sunshine in May: 10.7h

The month with the most sunshine is May (Average sunshine: 10.7h).
Months with the least sunshine are November and December (Average sunshine: 7.3).

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Average sunshine days in May
Keauhou, HI

Average sunshine days in May - Keauhou, HI
  • Average sunshine days in May: 3.2 days

The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).

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Average UV index in May
Keauhou, HI

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

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

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Average cloud cover in May
Keauhou, HI

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

The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).

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Average visibility in May
Keauhou, HI

Average visibility in May - Keauhou, HI
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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