Kalihi Valley weather in December

In December, Kalihi Valley sees average daytime highs of 75°F and overnight lows near 73°F, with 1.9 in of rain across 5.2 wet days and about 10.7 hours of daylight. It is the 8th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 75°F through the month. The sky is clear or mostly clear about 65% of the time in December, and the air most often feels muggy.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Kalihi Valley's 7th-clearest and 6th-windiest month. For the whole year in context, see Kalihi Valley's year-round climate.

Daytime high
75°
8th warmest
Overnight low
73°
5th coldest
Rainfall
1.9 in
5.2 wet days
Daylight
10 h 42 min
7:06 AM – 5:49 PM
Cloud cover
37%
7th clearest
Wind
16 mph
6th windiest
Solar energy
4.29 kWh/m²
Travel score
8.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 75°F through the month.

A typical December day in Kalihi Valley reaches about 75°F in the afternoon and slips back to 73°F overnight — a 2°F spread between the day's warmth and the night's chill. On most days the high lands between 74°F and 77°F. Set against its neighbours, December runs about 2°F cooler than November and on par with January.

65°70°75°80°85°151015202531
Avg high (°F)Avg low (°F)
17674
27674
37674
47674
57674
67674
77674
87674
97674
107674
117673
127673
137673
147673
157673
167573
177573
187573
197573
207573
217573
227573
237573
247573
257573
267573
277573
287573
297573
307572
317572

Kalihi Valley weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan74° / 72°1.44.910.88.2
Feb74° / 71°1.14.411.38.1
Mar74° / 71°1.54.411.88.2
Apr75° / 72°0.42.412.58.6
May76° / 74°0.52.2138.7
Jun77° / 75°0.31.113.38.8
Jul78° / 76°0.2113.28.7
Aug79° / 77°0.41.812.78.5
Sep79° / 77°0.42.212.18.4
Oct79° / 76°0.82.911.58.1
Nov77° / 75°1.64.9118.0
Dec75° / 73°1.95.210.78.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27228
37228
47228
57327
67327
77525
87525
97624
107723
117822
127822
137921
147921
157921
167921
177921
188119
198119
208119
218119
228119
238119
248119
258119
268119
278119
288119
298218
308218
318317

Chance of precipitation in December

Any precipitation

Kalihi Valley gets around 1.9 in of rain over 5.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
516
616
716
816
915
1015
1115
1214
1314
1415
1515
1615
1715
1815
1916
2016
2116
2217
2317
2418
2518
2619
2719
2819
2919
3018
3118

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 69% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
102226412
202226511
303226510
403226510
50322669
60323659
70423658
80423658
90424657
100524647
110524656
120524656
130525655
140525655
150526645
160526654
170426664
180427654
190427654
200428653
210428653
220429643
230429643
240430633
250430633
260531613
271632583
281732573
291832563
301933543
3111033542

Wind in December

Winds average 16 mph in December.

Across December, daily wind ranges from about 14 mph on the calmest days to 17 mph at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (mph)Feels
117breezy
217breezy
317breezy
417breezy
517breezy
617breezy
717breezy
817breezy
916breezy
1016breezy
1116breezy
1216breezy
1316breezy
1416breezy
1516breezy
1616breezy
1716breezy
1815breezy
1915breezy
2015breezy
2115breezy
2215breezy
2315breezy
2415breezy
2515breezy
2614breezy
2714breezy
2814breezy
2914breezy
3014breezy
3114breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:57 AM to 7:13 AM, and sunset from 5:45 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:575:45
210.86:585:45
310.86:595:45
410.86:595:45
510.87:005:46
610.87:015:46
710.77:015:46
810.77:025:46
910.77:025:46
1010.77:035:47
1110.77:045:47
1210.77:045:47
1310.77:055:48
1410.77:055:48
1510.77:065:48
1610.77:065:49
1710.77:075:49
1810.77:075:50
1910.77:085:50
2010.77:085:50
2110.77:095:51
2210.77:095:51
2310.77:105:52
2410.77:105:52
2510.77:115:53
2610.77:115:53
2710.77:125:54
2810.77:125:54
2910.77:125:55
3010.77:135:55
3110.77:135:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 7.28 kWh/m² in June across the year — December's 4.29 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in December

Hazard calendar for Kalihi Valley

In seasonPeak

None of Kalihi Valley's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Kalihi Valley 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 December a good time to visit Kalihi Valley?

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

8.2
Sightseeing
7th-best month of the year
7.0
Beach & pool
9th-best month of the year

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

What to pack for Kalihi Valley in December

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

In December, Kalihi Valley sees daytime highs around 75°F and nights near 73°F. Worth packing: light clothes and a windbreaker. About 5 days see rain.

light clothesa windbreaker

Sea temperature near Kalihi Valley in December

The nearest coast averages about 77°F in December — 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
Feb75Warm
Mar75Warm
Apr76Warm
May77Warm
Jun78Warm
Jul79Warm
Aug80Warm
Sep80Warm
Oct80Warm
Nov79Warm
Dec77Warm

UV index in Kalihi Valley in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kalihi Valley peaks around July 21 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 21UV 12Dec 18UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar10Extreme
Apr11Extreme
May10Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct9Very high
Nov7High
Dec6High
Location & terrain

Where is Kalihi Valley?

Kalihi Valley sits at 21.4°N, 157.8°W, 538 ft above sea level, in United States. The nearest listed city is Nuuanu - Punchbowl, 1.9 mi away.

Topography around Kalihi Valley

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

Within 2 miles, the terrain around Kalihi Valley has large variations in elevation — a maximum elevation change of 2,451 ft around an average of 1,010 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 Kalihi Valley is covered by trees (89%) within 2 miles, trees (39%) and water (35%) within 10 miles, and water (87%) within 50 miles.

2 miles
2,451 ft
10 miles
3,117 ft
50 miles
3,983 ft
treesshrubsgrasslandartificial surfacesbare terrainwater
December weather nearby: Nuuanu - Punchbowl 1.9 mi · Liliha - Kapalama 1.9 mi · Makiki / Lower Punchbowl / Tantalus 3.1 mi · Kalihi-Palama 3.1 mi · Kaneohe 3.7 mi · Honolulu 4.3 mi · Manoa 4.3 mi · Ala Moana - Kakaʻako 5.0 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 Kalihi Valley (21.3637°, -157.8429°, elevation 538 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).