Koolauloa in Spring
In spring (March, April and May), Koolauloa sees average daytime highs around 78°F and overnight lows near 69°F, with 4.2 in of rain over about 25 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 76°F in early March to 81°F by late May. The sky is clear or mostly clear about 29% of the time across spring, and the air most often feels humid.
Spring is Koolauloa's 2nd-best season to visit on our travel score. Koolauloa 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 Koolauloa's year-round climate.
- Avg daytime high
- 78°F
- 3rd-warmest season
- Avg overnight low
- 69°F
- Rainfall
- 4.2 in
- 25 wet days
- Avg wind
- 11 mph
- Travel score
- 7.1
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Koolauloa in Spring
Over the season highs climb from about 76°F in early March to 81°F by late May.
A typical spring day in Koolauloa reaches about 78°F and drops to 69°F overnight. The warmest of the three months is May, the coolest March.
Koolauloa weather by month
How the three spring months (March, April and May) 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 Spring
The sky is clear or mostly clear about 29% of the time across spring.
Chance of precipitation in Spring
Koolauloa gets around 4.2 in of rain over 25 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 11 mph across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 30 min in early March to 13 h 12 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.6 kWh/m².
Hazard calendar for Koolauloa
In spring, Koolauloa overlaps its pacific hurricane season. The full year is below, with each hazard's peak months called out.
Koolauloa sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is spring a good time to visit Koolauloa?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is one of the better times to visit Koolauloa for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Koolauloa in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Koolauloa sees daytime highs around 78°F and nights near 69°F. Pack sun protection. Worth having: light clothes and rain gear. About 25 days see rain.
Sea temperature near Koolauloa in Spring
The nearest coast averages about 76°F across spring — 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) | 75 | 75 | 75 | 76 | 77 | 78 | 78 | 79 | 80 | 80 | 79 | 77 |
| Comfort | Warm | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 75 | Warm |
| Feb | 75 | Refreshing |
| Mar | 75 | Refreshing |
| Apr | 76 | Warm |
| May | 77 | Warm |
| Jun | 78 | Warm |
| Jul | 78 | Warm |
| Aug | 79 | Warm |
| Sep | 80 | Warm |
| Oct | 80 | Warm |
| Nov | 79 | Warm |
| Dec | 77 | Warm |
UV index in Koolauloa in Spring
Clear-sky midday UV across spring averages 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 Koolauloa 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 Koolauloa?
Koolauloa sits at 21.6°N, 157.9°W, 640 ft above sea level, in United States. The nearest listed city is Wahiawā, 9.3 mi away.
Topography around Koolauloa
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Koolauloa.
Within 2 miles, the terrain around Koolauloa has large variations in elevation — a maximum elevation change of 2,434 ft around an average of 722 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,828 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 3,983 ft.
The land around Koolauloa is covered by trees (79%) within 2 miles, trees (47%) and water (44%) 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 Koolauloa (21.6058°, -157.9265°, elevation 640 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.