Mililani Mauka in Winter
In winter (December, January and February), Mililani Mauka sees average daytime highs around 76°F and overnight lows near 68°F, with 5.0 in of rain over about 22 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 76°F. The sky is clear or mostly clear about 41% of the time across winter, and the air most often feels humid.
Winter is Mililani Mauka's best season of the year to visit on our travel score. Mililani Mauka has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Mililani Mauka's year-round climate.
- Avg daytime high
- 76°F
- coldest season of the year
- Avg overnight low
- 68°F
- Rainfall
- 5.0 in
- 22 wet days
- Avg wind
- 10 mph
- Travel score
- 7.5
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Mililani Mauka in Winter
Across winter, daytime highs hold fairly steady around 76°F.
A typical winter day in Mililani Mauka reaches about 76°F and drops to 68°F overnight. The warmest of the three months is December, the coolest February.
Mililani Mauka weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 76° / 67° | 1.6 | 7.3 | 10.8 | 7.6 |
| Feb | 76° / 67° | 1.5 | 7 | 11.3 | 7.5 |
| Mar | 76° / 68° | 2.1 | 8.9 | 11.8 | 7.2 |
| Apr | 78° / 69° | 1.0 | 8.4 | 12.5 | 7.0 |
| May | 80° / 70° | 1.1 | 8 | 13 | 7.0 |
| Jun | 82° / 72° | 0.9 | 7.3 | 13.3 | 6.9 |
| Jul | 82° / 73° | 0.8 | 7.8 | 13.2 | 6.6 |
| Aug | 83° / 74° | 0.9 | 6.8 | 12.7 | 6.3 |
| Sep | 83° / 74° | 0.8 | 7 | 12.1 | 6.3 |
| Oct | 82° / 73° | 1.3 | 7.2 | 11.5 | 6.7 |
| Nov | 79° / 71° | 1.8 | 7.7 | 11 | 7.0 |
| Dec | 77° / 69° | 1.9 | 7.2 | 10.7 | 7.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 41% of the time across winter.
Chance of precipitation in Winter
Mililani Mauka gets around 5.0 in of rain over 22 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 10 mph across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 h 48 min in early December to 11 h 30 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 4.6 kWh/m².
Hazard calendar for Mililani Mauka
None of Mililani Mauka's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Mililani Mauka sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is winter a good time to visit Mililani Mauka?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is one of the better times to visit Mililani Mauka for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Mililani Mauka in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Mililani Mauka sees daytime highs around 76°F and nights near 68°F. Worth packing: light clothes and sun protection. About 22 days see rain.
Sea temperature near Mililani Mauka in Winter
The nearest coast averages about 76°F across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 11 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 76 | 75 | 75 | 76 | 77 | 78 | 79 | 80 | 80 | 80 | 79 | 77 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 76 | Warm |
| Feb | 75 | Warm |
| Mar | 75 | Warm |
| Apr | 76 | Warm |
| May | 77 | Warm |
| Jun | 78 | Warm |
| Jul | 79 | Warm |
| Aug | 80 | Warm |
| Sep | 80 | Warm |
| Oct | 80 | Warm |
| Nov | 79 | Warm |
| Dec | 77 | Warm |
UV index in Mililani Mauka in Winter
Clear-sky midday UV across winter averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mililani Mauka peaks around July 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 9 | 10 | 11 | 10 | 11 | 12 | 12 | 12 | 9 | 7 | 6 |
| Level | High | Very high | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 9 | Very high |
| Mar | 10 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 9 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Where is Mililani Mauka?
Mililani Mauka sits at 21.5°N, 158.0°W, 820 ft above sea level, in United States. The nearest listed city is Mililani Mauka / Launani Valley, 0.6 mi away.
Topography around Mililani Mauka
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Mililani Mauka.
Within 2 miles, the terrain around Mililani Mauka has significant variations in elevation — a maximum elevation change of 925 ft around an average of 883 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 4,006 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 3,983 ft.
The land around Mililani Mauka is covered by trees (64%) and artificial surfaces (22%) within 2 miles, trees (64%) and grassland (22%) within 10 miles, and water (87%) within 50 miles.
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
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 Mililani Mauka (21.4779°, -157.9945°, elevation 820 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.