McCully - Moiliili in Winter
In winter (December, January and February), McCully - Moiliili sees average daytime highs around 74°F and overnight lows near 72°F, with 4.5 in of rain over about 15 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 74°F. The sky is clear or mostly clear about 66% of the time across winter, and the air most often feels muggy.
Winter is McCully - Moiliili's 3rd-best season to visit on our travel score. McCully - Moiliili 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 McCully - Moiliili's year-round climate.
- Avg daytime high
- 74°F
- coldest season of the year
- Avg overnight low
- 72°F
- Rainfall
- 4.5 in
- 15 wet days
- Avg wind
- 15 mph
- Travel score
- 8.2
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in McCully - Moiliili in Winter
Across winter, daytime highs hold fairly steady around 74°F.
A typical winter day in McCully - Moiliili reaches about 74°F and drops to 72°F overnight. The warmest of the three months is December, the coolest February.
McCully - Moiliili 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 | 74° / 72° | 1.4 | 4.9 | 10.8 | 8.2 |
| Feb | 74° / 71° | 1.1 | 4.4 | 11.3 | 8.1 |
| Mar | 74° / 71° | 1.5 | 4.4 | 11.8 | 8.2 |
| Apr | 75° / 72° | 0.4 | 2.4 | 12.5 | 8.6 |
| May | 76° / 74° | 0.5 | 2.2 | 13 | 8.7 |
| Jun | 77° / 75° | 0.3 | 1.1 | 13.3 | 8.8 |
| Jul | 78° / 76° | 0.2 | 1 | 13.2 | 8.7 |
| Aug | 79° / 77° | 0.4 | 1.8 | 12.7 | 8.5 |
| Sep | 79° / 77° | 0.4 | 2.2 | 12.1 | 8.4 |
| Oct | 79° / 76° | 0.8 | 2.9 | 11.5 | 8.1 |
| Nov | 77° / 75° | 1.6 | 4.9 | 11 | 8.0 |
| Dec | 75° / 73° | 1.9 | 5.2 | 10.7 | 8.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 66% of the time across winter.
Chance of precipitation in Winter
McCully - Moiliili gets around 4.5 in of rain over 15 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 15 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 McCully - Moiliili
None of McCully - Moiliili's seasonal hazards peak in winter. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
McCully - Moiliili sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is winter a good time to visit McCully - Moiliili?
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 McCully - Moiliili for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for McCully - Moiliili in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, McCully - Moiliili sees daytime highs around 74°F and nights near 72°F. Worth packing: light clothes, sun protection and a windbreaker. About 15 days see rain.
Sea temperature near McCully - Moiliili 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 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.
| 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 McCully - Moiliili 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 McCully - Moiliili 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 7 | 9 | 10 | 11 | 10 | 11 | 12 | 12 | 12 | 9 | 7 | 6 |
| Level | High | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | High |
| Feb | 9 | Very high |
| Mar | 10 | Extreme |
| Apr | 11 | Extreme |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 9 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Where is McCully - Moiliili?
McCully - Moiliili sits at 21.3°N, 157.8°W, 23 ft above sea level, in United States. The nearest listed city is Mō‘ili‘ili, 0.0 mi away.
Topography around McCully - Moiliili
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of McCully - Moiliili.
Within 2 miles, the terrain around McCully - Moiliili has significant variations in elevation — a maximum elevation change of 1,450 ft around an average of 138 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 McCully - Moiliili is covered by artificial surfaces (49%), trees (21%) and water (20%) within 2 miles, water (51%) and trees (27%) within 10 miles, and water (86%) 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 McCully - Moiliili (21.2946°, -157.8312°, elevation 23 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.