May weather forecast
Lanai City, HI

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Weather in May

Lanai City in May showcases weather conditions that align with the typical tropical climate narrative of Hawaii. Experience lesser rainfall, dropping to 0.51" (13mm) when compared to April and warmer temperatures start building up. As the city inches closer to mid-year, daylight periods prolong, offering ample time for island activities like hiking or water sports. Winds shift subtly, presenting refreshed atmospheres. With reduced cloudiness and escalating sunshine hours, anticipate clearer blue skies in May's canvas.

Temperature

Lanai City's transition from April to May introduces an average high-temperature of a still moderately hot 77.7°F (25.4°C), marking an insignificant variation from the 76.3°F (24.6°C). During the nights of May, Lanai City maintains an almost steady temperature with an average low of 74.3°F (23.5°C).

Humidity

In May, the average relative humidity in Lanai City is 74%.

Rainfall

In Lanai City, in May, during 8.4 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Lanai City, during the entire year, the rain falls for 98.9 days and collects up to 7.64" (194mm) of precipitation.

Snowfall

January through August, October through December are months without snowfall in Lanai City, Hawaii.

Ocean temperature

In Lanai City, the average seawater temperature in May is 77°F (25°C).
Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

In Lanai City, Hawaii, the average length of the day in May is 13h and 8min.
On the first day of May, sunrise is at 5:56 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:05 pm HST.

Sunshine

In May, the average sunshine in Lanai City is 11.4h.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index in Lanai City. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 7 in May leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The Sun's UV rays intensify with reflections from sand and water.
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Frequently asked questions

What are the temperatures in Lanai City in May?

The average high-temperature, in May, in Lanai City, is 77.7°F (25.4°C), while the average low-temperature is 74.3°F (23.5°C).

What is the average humidity in May in Lanai City?

In May, the average relative humidity in Lanai City is 74%.

How much does it rain in Lanai City in May?

In Lanai City, Hawaii, during May, the rain falls for 8.4 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When it does not snow in Lanai City?

In Lanai City, snow does not fall in January through August, October through December.

How warm is the water in May in Lanai City?

In Lanai City, Hawaii, in May, the average water temperature is 77°F (25°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 Lanai City?

The average day length in May in Lanai City, Hawaii, is 13h and 8min.

When are sunrise and sunset in May in Lanai City?

On the first day of May in Lanai City, Hawaii, sunrise is at 5:56 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:05 pm HST.

How long on average sun shines in May in Lanai City?

The average sunshine duration in May is 11.4h.

When is the highest UV index in Lanai City?

May through October, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index intensity in May in Lanai City?

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

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

The warmest month (with the highest average high temperature) is September (81°F).
The month with the lowest average high temperature is February (74.8°F).

  • Average low temperature in May: 74.3°F

The months with the highest average low temperature are August and October (77.5°F).
The coldest month (with the lowest average low temperature) is March (71.6°F).

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Average pressure in May
Lanai City, HI

Average pressure in May - Lanai City, HI
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is April (30.05"Hg).
The month with the lowest atmospheric pressure is October (29.96"Hg).

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Average wind speed in May
Lanai City, HI

Average wind speed in May - Lanai City, HI
  • Average wind speed in May: 9.3mph

The windiest months (with the highest average wind speed) are March and November (10.9mph).
The calmest month (with the lowest average wind speed) is October (9mph).

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Average humidity in May
Lanai City, HI

Average humidity in May - Lanai City, HI
  • Average humidity in May: 74%

The month with the highest relative humidity is July (75%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in May
Lanai City, HI

Average rainfall in May - Lanai City, HI
  • Average rainfall in May: 0.51"

The wettest month (with the highest rainfall) is March (1.26").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in May
Lanai City, HI

Average rainfall days in May - Lanai City, HI
  • Average rainfall days in May: 8.4 days

The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (4.7 days).

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Average snowfall days in May
Lanai City, HI

Average snowfall days in May - Lanai City, 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).

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Average sea temperature in May
Lanai City, HI

Average sea temperature in May - Lanai City, HI
  • Average sea temperature in May: 77°F

The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

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Average daylight in May /
Average sunshine in May
Lanai City, HI

Average daylight in May / Average sunshine in May - Lanai City, 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 2min

The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

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Average sunshine days in May
Lanai City, HI

Average sunshine days in May - Lanai City, HI
  • Average sunshine days in May: 19.8 days

The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is February (12.7 days).

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Average UV index in May
Lanai City, HI

Average UV index in May - Lanai City, HI
  • Average UV index in May: 7

The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).

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Average cloud cover in May
Lanai City, HI

Average cloud cover in May - Lanai City, HI
  • Average cloud cover in May: 23

The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 18).

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Average visibility in May
Lanai City, HI

Average visibility in May - Lanai City, 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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Lanai City, Hawaii, USA

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