World Resorts USA Kailua Kona Weather

Kailua Kona 7 Days Forecast

17.05
sun
Day
81°F
E 7 mph
Precip.
86%
Night
77°F
N 4 mph
Precip.
89%
18.05
mon
Day
81°F
E 7 mph
Precip.
100%
Night
77°F
SE 4 mph
Precip.
65%
19.05
tue
Day
79°F
E 6 mph
Precip.
100%
Night
77°F
SE 5 mph
Precip.
0%
20.05
wed
Day
79°F
E 8 mph
Precip.
100%
Night
77°F
S 6 mph
Precip.
62%
21.05
thu
Day
79°F
SE 7 mph
Precip.
100%
Night
75°F
N 3 mph
Precip.
68%
22.05
fri
Day
79°F
SE 4 mph
Precip.
100%
Night
75°F
N 2 mph
Precip.
100%
23.05
sat
Day
77°F
E 7 mph
Precip.
100%
Night
75°F
E 3 mph
Precip.
100%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 79.3°F. The highest and lowest sea temperatures during the month were 79.9°F and 78.6°F.

Air temperature in Kailua Kona, °F

Precipitation total in Kailua Kona, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Kailua Kona

Sunniest months:
January 22 days
December 20 days
February 19 days
Warmest months:
September 82.4 °F
August 82.1 °F
July 82.1 °F
Warmest sea temp:
September 81.3 °F
October 81.1 °F
August 80.9 °F
Coldest months:
January 76.9 °F
February 77.2 °F
March 77.9 °F
Rainiest months:
September 2 days
July 2 days
August 2 days
Windiest months:
May 7.0 mph
April 6.6 mph
June 6.5 mph

Kailua Kona on a weather map

Current weather
10:32
Kailua Kona
+81°F
E 7 mph
Feels like: +84°F
Precip.: 86%
Places in USA:
Name
°F
Boston
+88°F
Hawaii
+79°F
Honolulu
+79°F
Las Vegas
+95°F
Los Angeles
+73°F
Miami
+84°F
Miami Beach
+84°F
Maui
+75°F
New York
+82°F
San Diego
+66°F
San Francisco
+73°F
Sarasota
+79°F
Tampa
+82°F
Houston
+91°F
Chicago
+79°F
all places
24 Hours Forecast
Kailua Kona
Local time: 10:32
May 17, sunday
1200
81°F
E
7 mph
1500
81°F
E
7 mph
1800
79°F
NE
5 mph
2100
79°F
N
6 mph
May 18, monday
0000
77°F
N
4 mph
0300
75°F
E
4 mph
0600
75°F
S
6 mph
0900
79°F
E
2 mph
Units of measurement: °C / °F