May weather forecast
Kihei, HI

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Weather in May

The weather in Kihei during May subtly shifts towards warmer conditions as summer approaches. A notable decrease in precipitation to only 0.43" (11mm) shrinks chances of rainfall interruptions during outdoor explorations. Kihei's unique topography begins to shine under the increasing sunshine hours, inviting nature lovers to admire the scenic landscapes. Simultaneously, the burgeoning summer heat is offset by the still-comfortable sea temperature, encouraging beach activities.

Temperature

As May unfolds, the average high-temperature reaches a still moderately hot 77°F (25°C), hinting at a slight fluctuation from the previous month. Kihei's nighttime temperature in May consistently rests at a still moderately hot 73.4°F (23°C).

Humidity

The average relative humidity in May is 75%.

Rainfall

In Kihei, in May, during 8.3 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. In Kihei, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.

Ocean temperature

In May, the average ocean temperature is 77.4°F (25.2°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Kihei, the average length of the day in May is 13h and 8min.
On the first day of the month, sunrise is at 5:54 am and sunset at 6:50 pm. On the last day of May, sunrise is at 5:44 am and sunset at 7:02 pm HST.

Sunshine

The average sunshine in May in Kihei is 11h.

UV index

January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Kihei, Hawaii. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The UV exposure is heightened with reflections from sand and water.
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Frequently asked questions

What are the temperatures in Kihei in May?

In May, the average high-temperature and low-temperature in Kihei are 77°F (25°C) and 73.4°F (23°C) respectively.

What is the average humidity in May in Kihei?

In May, the average relative humidity is 75%.

How many days does it rain in May in Kihei?

In Kihei, Hawaii, in May, it is raining for 8.3 days, with typically 0.43" (11mm) of accumulated precipitation.

What is the ocean temperature in May in Kihei?

In Kihei, Hawaii, in May, the average water temperature is 77.4°F (25.2°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Kihei have in May?

In May, the average day length in Kihei, Hawaii, is 13h and 8min.

What time are sunrise and sunset in May in Kihei?

In May, on the first day of the month, sunrise is at 5:54 am and sunset at 6:50 pm. On the last day of the month, in Kihei, Hawaii, sunrise is at 5:44 am and sunset at 7:02 pm HST.

How many hours of sunshine does Kihei have in May?

The average sunshine duration in May is 11h.

When is the lowest UV index in Kihei?

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

What is the UV index reading in May in Kihei?

The average daily maximum UV index in May in Kihei is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's 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
Kihei, HI

Average temperature in May - Kihei, HI
  • Average high temperature in May: 77°F

The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in May: 73.4°F

The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).

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Average pressure in May
Kihei, HI

Average pressure in May - Kihei, 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
Kihei, HI

Average wind speed in May - Kihei, HI
  • Average wind speed in May: 11.7mph

The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).

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Average humidity in May
Kihei, HI

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

The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).

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Average rainfall in May
Kihei, HI

Average rainfall in May - Kihei, HI
  • Average rainfall in May: 0.43"

The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in May
Kihei, HI

Average rainfall days in May - Kihei, HI
  • Average rainfall days in May: 8.3 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).

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Average sea temperature in May
Kihei, HI

Average sea temperature in May - Kihei, HI
  • Average sea temperature in May: 77.3°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 (75.6°F).

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

Average daylight in May / Average sunshine in May - Kihei, 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: 11h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in May
Kihei, HI

Average sunshine days in May - Kihei, HI
  • Average sunshine days in May: 18.5 days

The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index in May
Kihei, HI

Average UV index in May - Kihei, 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
Kihei, HI

Average cloud cover in May - Kihei, HI
  • Average cloud cover in May: 25

The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).

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Average visibility in May
Kihei, HI

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

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