Hawai‘i Kai weather in October
In October, Hawai‘i Kai sees average daytime highs of 79°F and overnight lows near 76°F, with 0.8 in of rain across 2.9 wet days and about 11.5 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 79°F through the month. The sky is clear or mostly clear about 62% of the time in October, and the air most often feels muggy.
Daylight stretches from about 11 h 48 min at the start of October to 11 h 12 min by month's end. Set against the rest of the year, October is Hawai‘i Kai's 10th-clearest and 10th-windiest month. For the whole year in context, see Hawai‘i Kai's year-round climate.
- Daytime high
- 79°
- 3rd warmest
- Overnight low
- 76°
- 10th coldest
- Rainfall
- 0.8 in
- 2.9 wet days
- Daylight
- 11 h 30 min
- 6:31 AM – 6:01 PM
- Cloud cover
- 40%
- 10th clearest
- Wind
- 15 mph
- 10th windiest
- Solar energy
- 5.54 kWh/m²
- Travel score
- 8.1
- out of 10
Temperature in October
Day-to-day highs hold fairly steady near 79°F through the month.
A typical October day in Hawai‘i Kai reaches about 79°F in the afternoon and slips back to 76°F overnight — a 2°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 80°F. Set against its neighbours, October runs on par with September and about 2°F warmer than November.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 |
| Avg low (°F) | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 79 | 77 |
| 2 | 79 | 77 |
| 3 | 79 | 77 |
| 4 | 79 | 77 |
| 5 | 79 | 77 |
| 6 | 79 | 77 |
| 7 | 79 | 77 |
| 8 | 79 | 77 |
| 9 | 79 | 77 |
| 10 | 79 | 77 |
| 11 | 79 | 77 |
| 12 | 79 | 77 |
| 13 | 79 | 77 |
| 14 | 79 | 76 |
| 15 | 79 | 76 |
| 16 | 79 | 76 |
| 17 | 79 | 76 |
| 18 | 79 | 76 |
| 19 | 79 | 76 |
| 20 | 79 | 76 |
| 21 | 79 | 76 |
| 22 | 79 | 76 |
| 23 | 78 | 76 |
| 24 | 78 | 76 |
| 25 | 78 | 76 |
| 26 | 78 | 76 |
| 27 | 78 | 76 |
| 28 | 78 | 76 |
| 29 | 78 | 76 |
| 30 | 78 | 76 |
| 31 | 78 | 76 |
Hawai‘i Kai weather by month
How October compares with the rest of the year at a glance. October is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.
| 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 October
The sky is clear or mostly clear about 62% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 25%.
| 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 79 | 77 | 77 | 76 | 76 | 76 | 76 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 73 | 74 | 75 | 75 | 75 | 75 | 76 | 75 | 75 | 75 |
| Cloudier (%) | 21 | 23 | 23 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 79 | 21 |
| 2 | 77 | 23 |
| 3 | 77 | 23 |
| 4 | 76 | 24 |
| 5 | 76 | 24 |
| 6 | 76 | 24 |
| 7 | 76 | 24 |
| 8 | 74 | 26 |
| 9 | 74 | 26 |
| 10 | 74 | 26 |
| 11 | 74 | 26 |
| 12 | 73 | 27 |
| 13 | 73 | 27 |
| 14 | 73 | 27 |
| 15 | 73 | 27 |
| 16 | 73 | 27 |
| 17 | 73 | 27 |
| 18 | 73 | 27 |
| 19 | 73 | 27 |
| 20 | 73 | 27 |
| 21 | 73 | 27 |
| 22 | 73 | 27 |
| 23 | 74 | 26 |
| 24 | 75 | 25 |
| 25 | 75 | 25 |
| 26 | 75 | 25 |
| 27 | 75 | 25 |
| 28 | 76 | 24 |
| 29 | 75 | 25 |
| 30 | 75 | 25 |
| 31 | 75 | 25 |
Chance of precipitation in October
Hawai‘i Kai gets around 0.8 in of rain over 2.9 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 10% and peaks near 13% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 |
| Rain chance (%) | |
|---|---|
| 1 | 7 |
| 2 | 7 |
| 3 | 7 |
| 4 | 7 |
| 5 | 7 |
| 6 | 7 |
| 7 | 8 |
| 8 | 8 |
| 9 | 8 |
| 10 | 9 |
| 11 | 9 |
| 12 | 10 |
| 13 | 10 |
| 14 | 10 |
| 15 | 11 |
| 16 | 11 |
| 17 | 11 |
| 18 | 11 |
| 19 | 11 |
| 20 | 11 |
| 21 | 11 |
| 22 | 11 |
| 23 | 11 |
| 24 | 11 |
| 25 | 11 |
| 26 | 12 |
| 27 | 12 |
| 28 | 12 |
| 29 | 12 |
| 30 | 12 |
| 31 | 13 |
Humidity in October
Most of October feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the muggy band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 98% 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 |
| Muggy (%) | 48 | 48 | 48 | 49 | 49 | 49 | 50 | 51 | 51 | 52 | 53 | 53 | 54 | 54 | 55 | 55 | 55 | 56 | 57 | 58 | 57 | 58 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 58 |
| Oppressive (%) | 52 | 52 | 52 | 51 | 51 | 51 | 50 | 49 | 49 | 48 | 47 | 47 | 46 | 46 | 45 | 45 | 44 | 43 | 42 | 41 | 41 | 40 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 37 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 0 | 48 | 52 |
| 2 | 0 | 48 | 52 |
| 3 | 0 | 48 | 52 |
| 4 | 0 | 49 | 51 |
| 5 | 0 | 49 | 51 |
| 6 | 0 | 49 | 51 |
| 7 | 0 | 50 | 50 |
| 8 | 0 | 51 | 49 |
| 9 | 0 | 51 | 49 |
| 10 | 0 | 52 | 48 |
| 11 | 0 | 53 | 47 |
| 12 | 0 | 53 | 47 |
| 13 | 0 | 54 | 46 |
| 14 | 0 | 54 | 46 |
| 15 | 0 | 55 | 45 |
| 16 | 0 | 55 | 45 |
| 17 | 1 | 55 | 44 |
| 18 | 1 | 56 | 43 |
| 19 | 1 | 57 | 42 |
| 20 | 1 | 58 | 41 |
| 21 | 2 | 57 | 41 |
| 22 | 2 | 58 | 40 |
| 23 | 2 | 59 | 39 |
| 24 | 3 | 58 | 39 |
| 25 | 3 | 58 | 39 |
| 26 | 3 | 58 | 39 |
| 27 | 4 | 58 | 38 |
| 28 | 4 | 58 | 38 |
| 29 | 4 | 58 | 38 |
| 30 | 4 | 59 | 37 |
| 31 | 5 | 58 | 37 |
Wind in October
Winds average 15 mph in October.
Across October, daily wind ranges from about 15 mph on the calmest days to 15 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 15 | breezy |
| 2 | 15 | breezy |
| 3 | 15 | breezy |
| 4 | 15 | breezy |
| 5 | 15 | breezy |
| 6 | 15 | breezy |
| 7 | 15 | breezy |
| 8 | 15 | breezy |
| 9 | 15 | breezy |
| 10 | 15 | breezy |
| 11 | 15 | breezy |
| 12 | 15 | breezy |
| 13 | 15 | breezy |
| 14 | 15 | breezy |
| 15 | 15 | breezy |
| 16 | 15 | breezy |
| 17 | 15 | breezy |
| 18 | 15 | breezy |
| 19 | 15 | breezy |
| 20 | 15 | breezy |
| 21 | 15 | breezy |
| 22 | 15 | breezy |
| 23 | 15 | breezy |
| 24 | 15 | breezy |
| 25 | 15 | breezy |
| 26 | 15 | breezy |
| 27 | 15 | breezy |
| 28 | 15 | breezy |
| 29 | 15 | breezy |
| 30 | 15 | breezy |
| 31 | 15 | breezy |
Sunrise & sunset in October
Daylight runs from about 11 h 48 min at the start of October to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over October. Sunrise moves from 6:26 AM to 6:38 AM, and sunset from 6:14 PM to 5:51 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 |
| Sunrise (AM) | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:29 | 6:30 | 6:30 | 6:30 | 6:31 | 6:31 | 6:32 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:35 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:38 |
| Sunset (PM) | 6:14 | 6:13 | 6:12 | 6:11 | 6:10 | 6:09 | 6:08 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:02 | 6:02 | 6:01 | 6:00 | 5:59 | 5:59 | 5:58 | 5:57 | 5:56 | 5:56 | 5:55 | 5:54 | 5:54 | 5:53 | 5:53 | 5:52 | 5:51 | 5:51 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:26 | 6:14 |
| 2 | 11.8 | 6:26 | 6:13 |
| 3 | 11.8 | 6:26 | 6:12 |
| 4 | 11.7 | 6:27 | 6:11 |
| 5 | 11.7 | 6:27 | 6:10 |
| 6 | 11.7 | 6:27 | 6:09 |
| 7 | 11.7 | 6:27 | 6:08 |
| 8 | 11.7 | 6:28 | 6:08 |
| 9 | 11.6 | 6:28 | 6:07 |
| 10 | 11.6 | 6:29 | 6:06 |
| 11 | 11.6 | 6:29 | 6:05 |
| 12 | 11.6 | 6:29 | 6:04 |
| 13 | 11.6 | 6:30 | 6:03 |
| 14 | 11.5 | 6:30 | 6:02 |
| 15 | 11.5 | 6:30 | 6:02 |
| 16 | 11.5 | 6:31 | 6:01 |
| 17 | 11.5 | 6:31 | 6:00 |
| 18 | 11.5 | 6:32 | 5:59 |
| 19 | 11.4 | 6:32 | 5:59 |
| 20 | 11.4 | 6:32 | 5:58 |
| 21 | 11.4 | 6:33 | 5:57 |
| 22 | 11.4 | 6:33 | 5:56 |
| 23 | 11.4 | 6:34 | 5:56 |
| 24 | 11.3 | 6:34 | 5:55 |
| 25 | 11.3 | 6:35 | 5:54 |
| 26 | 11.3 | 6:35 | 5:54 |
| 27 | 11.3 | 6:36 | 5:53 |
| 28 | 11.3 | 6:36 | 5:53 |
| 29 | 11.3 | 6:37 | 5:52 |
| 30 | 11.2 | 6:37 | 5:51 |
| 31 | 11.2 | 6:38 | 5:51 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 5.54 kWh/m².
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 — October's 5.54 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.0 |
| Level | Intense | Intense | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.0 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Bright |
| 4 | 5.9 | Bright |
| 5 | 5.9 | Bright |
| 6 | 5.9 | Bright |
| 7 | 5.8 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.7 | Bright |
| 11 | 5.7 | Bright |
| 12 | 5.7 | Bright |
| 13 | 5.6 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.4 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Hawai‘i Kai
In October, Hawai‘i Kai sits inside its pacific hurricane season. The full year is below, with each hazard's peak months called out.
Hawai‘i Kai sits in the eastern Pacific hurricane zone; the season peaks August–September.
Is October a good time to visit Hawai‘i Kai?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is one of the better times to visit Hawai‘i Kai for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Hawai‘i Kai in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Hawai‘i Kai sees daytime highs around 79°F and nights near 76°F. Worth packing: light clothes, sun protection and a windbreaker.
Sea temperature near Hawai‘i Kai in October
The nearest coast averages about 80°F in October — 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 | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 76 | Warm |
| Feb | 75 | Refreshing |
| Mar | 75 | Refreshing |
| 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 Hawai‘i Kai in October
Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hawai‘i Kai peaks around July 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 Hawai‘i Kai?
Hawai‘i Kai sits at 21.3°N, 157.7°W, 10 ft above sea level, in United States. The nearest listed city is East Honolulu, 1.2 mi away.
Topography around Hawai‘i Kai
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Hawai‘i Kai.
Within 2 miles, the terrain around Hawai‘i Kai has significant variations in elevation — a maximum elevation change of 1,795 ft around an average of 318 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 Hawai‘i Kai is covered by trees (32%), grassland (23%) and artificial surfaces (23%) within 2 miles, water (70%) 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 Hawai‘i Kai (21.2964°, -157.7018°, elevation 10 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).