Kailua weather in October

In October, Kailua sees average daytime highs of 80°F and overnight lows near 74°F, with 1.5 in of rain across 10 wet days and about 11.5 hours of daylight. It is the 3rd-warmest and 6th-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 48% of the time in October, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 12 min by month's end. Set against the rest of the year, October is Kailua's 9th-clearest and 10th-windiest month. For the whole year in context, see Kailua's year-round climate.

Daytime high
80°
3rd warmest
Overnight low
74°
10th coldest
Rainfall
1.5 in
10 wet days
Daylight
11 h 30 min
6:31 AM – 6:01 PM
Cloud cover
48%
9th clearest
Wind
12 mph
10th windiest
Solar energy
5.46 kWh/m²
Travel score
6.8
out of 10

Kailua is census designated place in Honolulu County, Hawaii, United States.

Density
1,411/km²
people per km²

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

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

A typical October day in Kailua reaches about 80°F in the afternoon and slips back to 74°F overnight — a 5°F spread between the day's warmth and the night's chill. On most days the high lands between 78°F and 82°F. Set against its neighbours, October runs on par with September and about 2°F warmer than November.

65°70°75°80°85°151015202531
Avg high (°F)Avg low (°F)
18075
28075
38075
48075
58075
68075
78075
88075
98075
108075
118075
128075
138075
148075
158075
168075
178074
188074
198074
208074
218074
228074
238074
248074
258074
267974
277974
287974
297974
307974
317974

Kailua weather by month

How October compares with the rest of the year at a glance. October is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan75° / 69°1.78.210.87.6
Feb74° / 69°1.78.211.37.3
Mar74° / 69°2.310.711.87.0
Apr76° / 70°1.210.812.57.0
May77° / 72°1.38.9137.2
Jun79° / 73°1.210.413.36.9
Jul80° / 74°1.210.813.26.8
Aug80° / 75°1.29.512.76.9
Sep81° / 75°1.19.212.16.9
Oct80° / 74°1.51011.56.8
Nov78° / 73°2.311.3116.7
Dec76° / 71°2.310.610.77.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 23% of October, with mostly cloudy or overcast conditions the remaining 30%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27327
37327
47327
57228
67129
77129
87129
97030
107030
117030
127030
136931
146931
156931
166931
176931
186931
196931
206931
216931
226931
237030
247030
257030
267030
277030
287129
297129
307030
317030

Chance of precipitation in October

Any precipitation

Kailua gets around 1.5 in of rain over 10 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
331
431
531
632
732
832
932
1032
1132
1232
1332
1432
1532
1632
1732
1832
1932
2032
2132
2232
2333
2433
2534
2634
2735
2835
2936
3036
3136

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1026236
2026236
3026335
4026335
5026335
6026434
7026434
8026533
9026533
10036532
11036532
12036631
13036631
14036631
15036631
16036730
17046630
18046729
19046729
20056728
21056728
22066727
23066727
24076627
25076726
26176626
27176626
28176626
29186625
30186625
31186724

Wind in October

Winds average 12 mph in October.

Across October, daily wind ranges from about 12 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over October. Sunrise moves from 6:26 AM to 6:38 AM, and sunset from 6:14 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:266:14
211.86:266:13
311.86:266:12
411.76:276:11
511.76:276:10
611.76:276:09
711.76:286:09
811.76:286:08
911.66:286:07
1011.66:296:06
1111.66:296:05
1211.66:296:04
1311.66:306:03
1411.56:306:03
1511.56:316:02
1611.56:316:01
1711.56:316:00
1811.56:325:59
1911.46:325:59
2011.46:335:58
2111.46:335:57
2211.46:345:57
2311.46:345:56
2411.36:355:55
2511.36:355:54
2611.36:365:54
2711.36:365:53
2811.36:365:53
2911.36:375:52
3011.26:385:52
3111.26:385:51

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.46 kWh/m².

For context, solar energy here swings from a low near 4.19 kWh/m² to a high of 7.18 kWh/m² in June across the year — October's 5.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in October

Hazard calendar for Kailua

In seasonPeak

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

Kailua 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 October a good time to visit Kailua?

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

6.8
Sightseeing
10th-best month of the year
6.7
Beach & pool
3rd-best month of the year

October is a reasonable time to visit Kailua for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kailua in October

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

In October, Kailua sees daytime highs around 80°F and nights near 74°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Kailua in October

The nearest coast averages about 80°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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
Feb75Refreshing
Mar75Refreshing
Apr76Warm
May77Warm
Jun78Warm
Jul79Warm
Aug80Warm
Sep80Warm
Oct80Warm
Nov79Warm
Dec77Warm

UV index in Kailua in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kailua peaks around July 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 22UV 12Dec 18UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr11Extreme
May10Very high
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct9Very high
Nov7High
Dec6High
Location & terrain

Where is Kailua?

Kailua sits at 21.4°N, 157.7°W, 33 ft above sea level, in United States. The nearest listed city is Kaneohe, 3.7 mi away.

Topography around Kailua

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

Within 2 miles, the terrain around Kailua has only modest variations in elevation — a maximum elevation change of 545 ft around an average of 39 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,117 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 3,983 ft.

The land around Kailua is covered by water (33%) and artificial surfaces (26%) within 2 miles, water (56%) and trees (27%) within 10 miles, and water (86%) within 50 miles.

2 miles
545 ft
10 miles
3,117 ft
50 miles
3,983 ft
treesshrubsgrasslandartificial surfaceswaterwetland
October weather nearby: Kaneohe 3.7 mi · Nuuanu - Punchbowl 6.8 mi · Kalihi Valley 6.8 mi · Manoa 7.5 mi · Kuliouou - Kalani Iki 7.5 mi · Hawai‘i Kai 7.5 mi · East Honolulu 8.1 mi · Niu Valley 8.1 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 Kailua (21.4024°, -157.7405°, elevation 33 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).