Pearl City weather in April
In April, Pearl City sees average daytime highs of 78°F and overnight lows near 69°F, with 1.0 in of rain across 8.4 wet days and about 12.5 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.
Day-to-day highs hold fairly steady near 78°F through the month. The sky is clear or mostly clear about 28% of the time in April, and the air most often feels humid.
Daylight stretches from about 12 h 12 min at the start of April to 12 h 48 min by month's end. Set against the rest of the year, April is Pearl City's 12th-clearest and 4th-windiest month. For the whole year in context, see Pearl City's year-round climate.
- Daytime high
- 78°
- 8th warmest
- Overnight low
- 69°
- 4th coldest
- Rainfall
- 1.0 in
- 8.4 wet days
- Daylight
- 12 h 30 min
- 6:17 AM – 6:47 PM
- Cloud cover
- 56%
- 12th clearest
- Wind
- 11 mph
- 4th windiest
- Solar energy
- 6.73 kWh/m²
- Travel score
- 7.0
- out of 10
Pearl City is census-designated place in Honolulu County, Hawaii, United States of America.
- Density
- 1,833/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 78°F through the month.
A typical April day in Pearl City reaches about 78°F in the afternoon and slips back to 69°F overnight — a 9°F spread between the day's warmth and the night's chill. On most days the high lands between 75°F and 81°F. Set against its neighbours, April runs about 1°F warmer than March and about 2°F cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 |
| Avg low (°F) | 68 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 | 69 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 77 | 68 |
| 2 | 77 | 69 |
| 3 | 77 | 69 |
| 4 | 77 | 69 |
| 5 | 77 | 69 |
| 6 | 77 | 69 |
| 7 | 77 | 69 |
| 8 | 77 | 69 |
| 9 | 77 | 69 |
| 10 | 78 | 69 |
| 11 | 78 | 69 |
| 12 | 78 | 69 |
| 13 | 78 | 69 |
| 14 | 78 | 69 |
| 15 | 78 | 69 |
| 16 | 78 | 69 |
| 17 | 78 | 69 |
| 18 | 78 | 69 |
| 19 | 78 | 69 |
| 20 | 78 | 69 |
| 21 | 78 | 69 |
| 22 | 78 | 69 |
| 23 | 78 | 69 |
| 24 | 78 | 69 |
| 25 | 78 | 69 |
| 26 | 78 | 69 |
| 27 | 78 | 69 |
| 28 | 78 | 69 |
| 29 | 78 | 69 |
| 30 | 78 | 69 |
Pearl City weather by month
How April compares with the rest of the year at a glance. April is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.
| 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 April
The sky is clear or mostly clear about 28% of the time in April, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 31% of April, with mostly cloudy or overcast conditions the remaining 41%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 62 | 62 | 62 | 61 | 61 | 60 | 60 | 60 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 57 |
| Cloudier (%) | 38 | 38 | 38 | 39 | 39 | 40 | 40 | 40 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 43 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 62 | 38 |
| 2 | 62 | 38 |
| 3 | 62 | 38 |
| 4 | 61 | 39 |
| 5 | 61 | 39 |
| 6 | 60 | 40 |
| 7 | 60 | 40 |
| 8 | 60 | 40 |
| 9 | 59 | 41 |
| 10 | 58 | 42 |
| 11 | 58 | 42 |
| 12 | 58 | 42 |
| 13 | 58 | 42 |
| 14 | 58 | 42 |
| 15 | 58 | 42 |
| 16 | 58 | 42 |
| 17 | 59 | 41 |
| 18 | 59 | 41 |
| 19 | 59 | 41 |
| 20 | 60 | 40 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 59 | 41 |
| 24 | 59 | 41 |
| 25 | 59 | 41 |
| 26 | 59 | 41 |
| 27 | 58 | 42 |
| 28 | 58 | 42 |
| 29 | 58 | 42 |
| 30 | 57 | 43 |
Chance of precipitation in April
Pearl City gets around 1.0 in of rain over 8.4 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 28% and peaks near 30% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Rain chance (%) | |
|---|---|
| 1 | 29 |
| 2 | 29 |
| 3 | 29 |
| 4 | 29 |
| 5 | 29 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 29 |
| 10 | 29 |
| 11 | 29 |
| 12 | 29 |
| 13 | 29 |
| 14 | 29 |
| 15 | 30 |
| 16 | 29 |
| 17 | 29 |
| 18 | 29 |
| 19 | 29 |
| 20 | 28 |
| 21 | 28 |
| 22 | 28 |
| 23 | 27 |
| 24 | 27 |
| 25 | 27 |
| 26 | 27 |
| 27 | 27 |
| 28 | 27 |
| 29 | 27 |
| 30 | 27 |
Humidity in April
Most of April feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the humid band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Comfortable (%) | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Humid (%) | 56 | 56 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 54 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 58 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 55 | 55 |
| Muggy (%) | 27 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 33 | 33 |
| Oppressive (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 2 | 14 | 56 | 27 | 1 |
| 2 | 2 | 14 | 56 | 27 | 1 |
| 3 | 1 | 13 | 58 | 27 | 1 |
| 4 | 1 | 13 | 57 | 28 | 1 |
| 5 | 1 | 13 | 57 | 28 | 1 |
| 6 | 1 | 13 | 56 | 29 | 1 |
| 7 | 1 | 13 | 56 | 29 | 1 |
| 8 | 1 | 13 | 55 | 30 | 1 |
| 9 | 1 | 13 | 55 | 30 | 1 |
| 10 | 1 | 13 | 54 | 31 | 1 |
| 11 | 1 | 12 | 55 | 31 | 1 |
| 12 | 1 | 12 | 56 | 31 | 0 |
| 13 | 1 | 12 | 56 | 31 | 0 |
| 14 | 1 | 11 | 56 | 32 | 0 |
| 15 | 1 | 11 | 56 | 32 | 0 |
| 16 | 1 | 11 | 56 | 32 | 0 |
| 17 | 1 | 11 | 56 | 32 | 0 |
| 18 | 1 | 10 | 57 | 32 | 0 |
| 19 | 1 | 10 | 58 | 31 | 0 |
| 20 | 1 | 10 | 58 | 31 | 0 |
| 21 | 1 | 10 | 58 | 31 | 0 |
| 22 | 2 | 10 | 57 | 31 | 0 |
| 23 | 2 | 10 | 57 | 31 | 0 |
| 24 | 2 | 10 | 57 | 31 | 0 |
| 25 | 2 | 10 | 56 | 32 | 0 |
| 26 | 2 | 10 | 56 | 32 | 0 |
| 27 | 2 | 10 | 56 | 32 | 0 |
| 28 | 2 | 10 | 56 | 32 | 0 |
| 29 | 2 | 10 | 55 | 33 | 0 |
| 30 | 2 | 10 | 55 | 33 | 0 |
Wind in April
Winds average 11 mph in April.
Across April, daily wind ranges from about 11 mph on the calmest days to 12 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 11 | light breeze |
| 2 | 11 | light breeze |
| 3 | 11 | light breeze |
| 4 | 11 | light breeze |
| 5 | 11 | light breeze |
| 6 | 11 | light breeze |
| 7 | 11 | light breeze |
| 8 | 11 | light breeze |
| 9 | 11 | light breeze |
| 10 | 11 | light breeze |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 11 | light breeze |
| 20 | 11 | light breeze |
| 21 | 11 | light breeze |
| 22 | 11 | light breeze |
| 23 | 11 | light breeze |
| 24 | 11 | light breeze |
| 25 | 11 | light breeze |
| 26 | 11 | light breeze |
| 27 | 11 | light breeze |
| 28 | 11 | light breeze |
| 29 | 11 | light breeze |
| 30 | 11 | light breeze |
Sunrise & sunset in April
Daylight runs from about 12 h 12 min at the start of April to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 36 minutes over April. Sunrise moves from 6:31 AM to 6:07 AM, and sunset from 6:42 PM to 6:52 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.8 |
| Sunrise (AM) | 6:31 | 6:30 | 6:29 | 6:28 | 6:27 | 6:26 | 6:25 | 6:24 | 6:24 | 6:23 | 6:22 | 6:21 | 6:20 | 6:19 | 6:18 | 6:17 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:09 | 6:09 | 6:08 | 6:07 | 6:07 |
| Sunset (PM) | 6:42 | 6:42 | 6:43 | 6:43 | 6:43 | 6:44 | 6:44 | 6:44 | 6:45 | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:47 | 6:48 | 6:48 | 6:48 | 6:49 | 6:49 | 6:49 | 6:50 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:31 | 6:42 |
| 2 | 12.2 | 6:30 | 6:42 |
| 3 | 12.2 | 6:29 | 6:43 |
| 4 | 12.2 | 6:28 | 6:43 |
| 5 | 12.3 | 6:27 | 6:43 |
| 6 | 12.3 | 6:26 | 6:44 |
| 7 | 12.3 | 6:25 | 6:44 |
| 8 | 12.3 | 6:24 | 6:44 |
| 9 | 12.3 | 6:24 | 6:45 |
| 10 | 12.4 | 6:23 | 6:45 |
| 11 | 12.4 | 6:22 | 6:45 |
| 12 | 12.4 | 6:21 | 6:46 |
| 13 | 12.4 | 6:20 | 6:46 |
| 14 | 12.5 | 6:19 | 6:46 |
| 15 | 12.5 | 6:18 | 6:47 |
| 16 | 12.5 | 6:17 | 6:47 |
| 17 | 12.5 | 6:17 | 6:47 |
| 18 | 12.5 | 6:16 | 6:48 |
| 19 | 12.6 | 6:15 | 6:48 |
| 20 | 12.6 | 6:14 | 6:48 |
| 21 | 12.6 | 6:13 | 6:49 |
| 22 | 12.6 | 6:12 | 6:49 |
| 23 | 12.6 | 6:12 | 6:49 |
| 24 | 12.6 | 6:11 | 6:50 |
| 25 | 12.7 | 6:10 | 6:50 |
| 26 | 12.7 | 6:09 | 6:50 |
| 27 | 12.7 | 6:09 | 6:51 |
| 28 | 12.7 | 6:08 | 6:51 |
| 29 | 12.7 | 6:07 | 6:52 |
| 30 | 12.8 | 6:07 | 6:52 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 6.73 kWh/m².
For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 7.21 kWh/m² in June across the year — April's 6.73 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.4 | Intense |
| 2 | 6.4 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.7 | Intense |
| 13 | 6.7 | Intense |
| 14 | 6.7 | Intense |
| 15 | 6.7 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.8 | Intense |
| 18 | 6.8 | Intense |
| 19 | 6.8 | Intense |
| 20 | 6.8 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.9 | Intense |
| 24 | 6.9 | Intense |
| 25 | 6.9 | Intense |
| 26 | 6.9 | Intense |
| 27 | 6.9 | Intense |
| 28 | 6.9 | Intense |
| 29 | 6.9 | Intense |
| 30 | 6.9 | Intense |
Hazard calendar for Pearl City
None of Pearl City's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Pearl City sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is April a good time to visit Pearl City?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is one of the better times to visit Pearl City for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Pearl City in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Pearl City sees daytime highs around 78°F and nights near 69°F. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.
Sea temperature near Pearl City in April
The nearest coast averages about 76°F in April — 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 Pearl City in April
Clear-sky midday UV in April peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Pearl City 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 Pearl City?
Pearl City sits at 21.4°N, 158.0°W, 89 ft above sea level, in United States. The nearest listed city is Waiau-Pacific Palisades, 1.2 mi away.
Topography around Pearl City
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Pearl City.
Within 2 miles, the terrain around Pearl City has only modest variations in elevation — a maximum elevation change of 541 ft around an average of 135 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,025 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 3,983 ft.
The land around Pearl City is covered by artificial surfaces (41%) and trees (26%) within 2 miles, trees (45%) and grassland (20%) 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 Pearl City (21.3973°, -157.9752°, elevation 89 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).