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Kailua, United States Snapshot 2026
Where is Kailua?
Kailua, United States
- Continent
- Americas
- Country
- United States
- City
- Kailua
- Population
- 38.6K
- Elevation
- 10 m
- Coordinates
- 21.40°, -157.74°
Kailua is a city in United States with a population of approximately 38.6K. Average temperatures range from 22°C (71°F) in February to 29°C (84°F) in September. The best time to visit is January, February, December.
Time in Kailua right now
Open full time & time zone page 10:39 39
Monday, June 15, 2026
IANA time zone
Pacific/Honolulu
Daylight saving
No DST
Next DST change
—
Live weather in Kailua
Daylight in Kailua today
View full sunrise & sunset page Sunrise
Sunset
Day length
13h 26m
Climate normals for Kailua
Long-term monthly averages based on historical data.
January best
Excellent 
February best
Excellent March
Excellent April
Good May
Good June
Good July
Good August
Good September
Good October
Good November
Good December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 26°C / 22°C | 27°C / 23°C | 8days (37 mm) Wet | 9.7h Good | 74% Muggy | 5.9 High | Excellent | View Details |
| February best | 25°C / 22°C | 27°C / 22°C | 10days (55 mm) Wet | 10h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| March | 26°C / 22°C | 28°C / 22°C | 12days (56 mm) Wet | 10.5h Excellent | 73% Muggy | 7.9 Very High | Excellent | View Details |
| April | 26°C / 23°C | 29°C / 23°C | 15days (54 mm) Wet | 11.2h Excellent | 74% Muggy | 8.3 Very High | Good | View Details |
| May | 27°C / 23°C | 29°C / 24°C | 11days (39 mm) Wet | 12h Excellent | 73% Muggy | 8.5 Very High | Good | View Details |
| June | 28°C / 24°C | 30°C / 25°C | 10days (38 mm) Wet | 12.4h Excellent | 72% Muggy | 8.8 Very High | Good | View Details |
| July | 28°C / 25°C | 31°C / 26°C | 11days (30 mm) Wet | 12.3h Excellent | 73% Muggy | 8.9 Very High | Good | View Details |
| August | 29°C / 25°C | 32°C / 27°C | 9days (30 mm) Wet | 11.8h Excellent | 73% Muggy | 8.9 Very High | Good | View Details |
| September | 29°C / 25°C | 32°C / 27°C | 7days (28 mm) Good | 11.1h Excellent | 72% Muggy | 8.5 Very High | Good | View Details |
| October | 29°C / 25°C | 31°C / 27°C | 11days (47 mm) Wet | 10.5h Excellent | 73% Muggy | 7.4 Very High | Good | View Details |
| November | 27°C / 24°C | 29°C / 25°C | 11days (38 mm) Wet | 10h Excellent | 73% Muggy | 6 High | Good | View Details |
| December best | 26°C / 23°C | 27°C / 24°C | 12days (68 mm) Wet | 9.2h Good | 75% Muggy | 5.4 High | Excellent | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 26°C / 22°C . Feb: 25°C / 22°C . Mar: 26°C / 22°C . Apr: 26°C / 23°C . May: 27°C / 23°C . Jun: 28°C / 24°C . Jul: 28°C / 25°C . Aug: 29°C / 25°C . Sep: 29°C / 25°C . Oct: 29°C / 25°C . Nov: 27°C / 24°C . Dec: 26°C / 23°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 37 mm. Feb: 55 mm. Mar: 56 mm. Apr: 54 mm. May: 39 mm. Jun: 38 mm. Jul: 30 mm. Aug: 30 mm. Sep: 28 mm. Oct: 47 mm. Nov: 38 mm. Dec: 68 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 73%. Mar: 73%. Apr: 74%. May: 73%. Jun: 72%. Jul: 73%. Aug: 73%. Sep: 72%. Oct: 73%. Nov: 73%. Dec: 75%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 25 km/h . Mar: 24 km/h . Apr: 25 km/h . May: 25 km/h . Jun: 26 km/h . Jul: 28 km/h . Aug: 26 km/h . Sep: 24 km/h . Oct: 23 km/h . Nov: 25 km/h . Dec: 25 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 25°C . Feb: 25°C . Mar: 24°C . Apr: 25°C . May: 25°C . Jun: 26°C . Jul: 26°C . Aug: 27°C . Sep: 27°C . Oct: 27°C . Nov: 26°C . Dec: 26°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 8. Apr: UV 8. May: UV 9. Jun: UV 9. Jul: UV 9. Aug: UV 9. Sep: UV 9. Oct: UV 7. Nov: UV 6. Dec: UV 5.
Frequently Asked Questions
Kailua has a population of approximately 38.6K.
The best months to visit Kailua are January, February, December, when temperatures are pleasant and rainfall is lower.
Kailua receives approximately 520mm of rainfall annually across 127 rainy days.
Kailua is located in United States, in the Americas region.
Kailua sits at an elevation of 10 m (33 ft) above sea level.