World Resorts USA Kauai Weather

Kauai weather in March

Weather in Kauai: March

Average day temperature: 74.2°F
Average night temperature: 70.7°F
Sea water temperature: 75.5°F
Number of sunny days: 2 days
Day length: 11.7 - 12.4 hours
Number of rainy days: 2 days
Precipitation totals: 1.8 in.

Air temperature in March, °F

Show year:
2026
2025
2024

The highest day temperature during March of 2026 was 79°F. At the same time the lowest night temperature was 67°F. Daily and nightly averages during March were 74.2°F and 70.0°F.

Sea water temperature in Kauai in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 76.5°F. The highest and lowest sea temperatures during the month were 77.0°F and 75.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in March are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in March, in.

Precipitation total value in Kauai in March is 1.8 in. Other months of the year show relatively similar values.

Wind speed in March, mph

The average wind speed value in March is 10.4 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in March is: 4.7.

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:
January 2 days
March 2 days
February 2 days
Windiest months:
July 11.7 mph
June 10.9 mph
May 10.8 mph

Kauai on a weather map

Kauai
+68°F
NW 9 mph
Feels like: +68°F
Precip.: 100%
Places in USA:
Name
°F
+46°F
+72°F
+72°F
+61°F
+57°F
+75°F
+75°F
+64°F
+39°F
+59°F
+50°F
+72°F
+72°F
+57°F
+43°F
24 Hours Forecast
Kauai
Local time: 03:01
April 06, monday
0600
68°F
NW
8 mph
0900
72°F
W
11 mph
1200
73°F
W
11 mph
1500
73°F
NW
7 mph
1800
73°F
NW
9 mph
2100
70°F
NW
8 mph
April 07, tuesday
0000
70°F
NW
7 mph
0300
68°F
NE
5 mph
Units of measurement: °C / °F