Kīhei weather in May

In May, Kīhei sees average daytime highs of 80°F and overnight lows near 70°F, with 0.6 in of rain across 3.9 wet days and about 13 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 80°F through the month. The sky is clear or mostly clear about 39% of the time in May, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of May to 13 h 12 min by month's end. Set against the rest of the year, May is Kīhei's 9th-clearest and 10th-windiest month. For the whole year in context, see Kīhei's year-round climate.

Daytime high
80°
6th warmest
Overnight low
70°
6th coldest
Rainfall
0.6 in
3.9 wet days
Daylight
13 hours
5:52 AM – 6:52 PM
Cloud cover
49%
9th clearest
Wind
6 mph
10th windiest
Solar energy
6.62 kWh/m²
Travel score
7.6
out of 10

Kīhei is census designated place in Maui County, Hawaii, United States.

Density
691/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 80°F through the month.

A typical May day in Kīhei reaches about 80°F in the afternoon and slips back to 70°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 83°F. Set against its neighbours, May runs about 2°F warmer than April and about 2°F cooler than June.

60°70°80°151015202531
Avg high (°F)Avg low (°F)
17969
28069
38069
48069
58069
68069
78069
88069
98069
108069
118070
128070
138070
148070
158070
168070
178070
188170
198170
208170
218170
228170
238170
248171
258171
268171
278171
288171
298271
308271
318271

Kīhei weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan77° / 67°1.75.410.98.0
Feb76° / 67°1.3511.37.9
Mar77° / 67°1.85.711.97.7
Apr79° / 69°0.83.612.57.7
May80° / 70°0.63.9137.6
Jun82° / 72°0.31.813.27.5
Jul83° / 73°0.42.613.16.9
Aug84° / 73°0.52.712.76.7
Sep84° / 73°0.42.712.16.7
Oct83° / 72°0.83.711.57.0
Nov80° / 71°0.93.8117.6
Dec78° / 68°1.84.310.88.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 29% of May, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56634
66634
76634
86535
96535
106535
116535
126436
136535
146535
156535
166634
176733
186733
196832
206832
216931
227030
237030
247129
257228
267228
277228
287327
297426
307426
317426

Chance of precipitation in May

Any precipitation

Kīhei gets around 0.6 in of rain over 3.9 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
514
614
714
814
914
1014
1114
1214
1314
1414
1514
1614
1714
1814
1913
2013
2113
2213
2312
2412
2511
2611
2710
2810
299
308
318

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the humid band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 28% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11127116
21127017
31126918
41126819
51126720
61126621
71126522
81126423
91126324
101116325
111116226
120116326
130106327
140106228
15096328
16096229
17086329
18086230
19076330
20076330
21066331
22066331
23056332
24056332
25056233
26046333
27046234
28036235
29036136
30036037
31026137

Wind in May

Winds average 6 mph in May.

Across May, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
235calm
245calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 48 min at the start of May to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 6:00 AM to 5:48 AM, and sunset from 6:45 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:006:45
212.86:006:46
312.85:596:46
412.85:596:47
512.85:586:47
612.85:576:47
712.95:576:48
812.95:566:48
912.95:566:49
1012.95:556:49
1112.95:556:49
1212.95:546:50
1312.95:546:50
1413.05:536:51
1513.05:536:51
1613.05:526:52
1713.05:526:52
1813.05:526:52
1913.05:516:53
2013.05:516:53
2113.05:516:54
2213.15:506:54
2313.15:506:55
2413.15:506:55
2513.15:506:55
2613.15:496:56
2713.15:496:56
2813.15:496:57
2913.15:496:57
3013.15:496:57
3113.25:486:58

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.62 kWh/m².

For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 6.68 kWh/m² in June across the year — May's 6.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in May

Hazard calendar for Kīhei

In seasonPeak

In May, Kīhei sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.

Kīhei sits in the eastern Pacific hurricane zone; the season peaks August–September.

Pacific hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Kīhei?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.6
Sightseeing
6th-best month of the year
7.7
Beach & pool
6th-best month of the year

May is one of the better times to visit Kīhei for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kīhei in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Kīhei sees daytime highs around 80°F and nights near 70°F. Pack sun protection. Worth having: light clothes. About 4 days see rain.

sun protectionlight clothes

Sea temperature near Kīhei in May

The nearest coast averages about 77°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 9 mi away) is warmest in September at about 80°F and coldest in February near 75°F.

The water stays above 68°F all year — warm enough for a swim any month.

74°76°78°80°82°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°F)Comfort
Jan76Warm
Feb75Warm
Mar75Warm
Apr76Warm
May77Warm
Jun78Warm
Jul78Warm
Aug80Warm
Sep80Warm
Oct80Warm
Nov79Warm
Dec77Warm

UV index in Kīhei in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kīhei peaks around July 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 22UV 12Dec 17UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr13Extreme
May10Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Very high
Nov7High
Dec6High
Location & terrain

Where is Kīhei?

Kīhei sits at 20.8°N, 156.4°W, 10 ft above sea level, in United States. The nearest listed city is Kahului, 8.7 mi away.

Topography around Kīhei

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Kīhei.

Within 2 miles, the terrain around Kīhei has only modest variations in elevation — a maximum elevation change of 528 ft around an average of 151 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 7,051 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,977 ft.

The land around Kīhei is covered by grassland (52%) and water (22%) within 2 miles, grassland (53%) and water (30%) within 10 miles, and water (83%) within 50 miles.

2 miles
528 ft
10 miles
7,051 ft
50 miles
9,977 ft
treesshrubsgrasslandartificial surfacesbare terrainwater
May weather nearby: Kahului 8.7 mi · Wailuku 9.3 mi · Lahaina 17 mi · Hawai‘i Kai 89 mi · East Honolulu 89 mi · Niu Valley 91 mi · Kuliouou - Kalani Iki 91 mi · Kaimukī 94 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kīhei (20.7646°, -156.4458°, elevation 10 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).