World Resorts USA Kauai Weather

Kauai 14 Days Forecast

16.07
thu
Day
81°F
W 13 mph
Precip.
14%
Night
75°F
W 11 mph
Precip.
29%
17.07
fri
Day
79°F
W 13 mph
Precip.
18%
Night
73°F
W 11 mph
Precip.
30%
18.07
sat
Day
79°F
W 12 mph
Precip.
21%
Night
73°F
W 9 mph
Precip.
51%
19.07
sun
Day
79°F
W 12 mph
Precip.
17%
Night
73°F
W 9 mph
Precip.
31%
20.07
mon
Day
79°F
W 11 mph
Precip.
4%
Night
73°F
W 8 mph
Precip.
19%
21.07
tue
Day
79°F
W 11 mph
Precip.
19%
Night
73°F
W 9 mph
Precip.
31%
22.07
wed
Day
77°F
W 12 mph
Precip.
42%
Night
73°F
W 11 mph
Precip.
26%
23.07
thu
Day
75°F
W 12 mph
Precip.
24%
Night
73°F
W 12 mph
Precip.
36%
24.07
fri
Day
77°F
W 11 mph
Precip.
8%
Night
73°F
W 9 mph
Precip.
19%
25.07
sat
Day
79°F
W 10 mph
Precip.
7%
Night
75°F
W 9 mph
Precip.
53%
26.07
sun
Day
81°F
W 11 mph
Precip.
15%
Night
75°F
NW 12 mph
Precip.
35%
27.07
mon
Day
81°F
W 14 mph
Precip.
11%
Night
75°F
W 12 mph
Precip.
29%
28.07
tue
Day
79°F
W 12 mph
Precip.
14%
Night
73°F
W 9 mph
Precip.
31%
29.07
wed
Day
79°F
W 13 mph
Precip.
18%
Night
75°F
W 10 mph
Precip.
28%

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 78.6°F. The highest and lowest sea temperatures during the month were 79.3°F and 77.9°F.

Air temperature in Kauai, °F

Precipitation total in Kauai, in.

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

Best time for vacation in Kauai

Sunniest months:
January 6 days
December 5 days
February 4 days
Warmest months:
September 80.3 °F
August 80.0 °F
July 79.2 °F
Warmest sea temp:
September 80.6 °F
October 80.4 °F
August 79.6 °F
Coldest months:
February 73.6 °F
March 74.2 °F
January 74.6 °F
Rainiest months:
March 2 days
January 2 days
February 2 days
Windiest months:
July 11.7 mph
June 10.8 mph
May 10.8 mph

Kauai on a weather map

Kauai
+73°F
NW 9 mph
Feels like: +77°F
Precip.: 38%
Places in USA:
Name
°F
+79°F
+77°F
+86°F
+66°F
+82°F
+70°F
+81°F
+75°F
+66°F
+57°F
+66°F
+88°F
+84°F
+82°F
+79°F
24 Hours Forecast
Kauai
Local time: 02:49
July 16, thursday
0300
73°F
NW
9 mph
0600
73°F
NW
9 mph
0900
77°F
W
12 mph
1200
81°F
W
13 mph
1500
81°F
W
14 mph
1800
77°F
W
13 mph
2100
75°F
W
11 mph
July 17, friday
0000
75°F
W
11 mph
Units of measurement: °C / °F