World Resorts USA Hawaii Weather

Hawaii weather in September

Weather in Hawaii: September

Average day temperature: 83.1°F
Average night temperature: 77.8°F
Sea water temperature: 80.8°F
Number of sunny days: 15 days
Day length: 12.0 - 12.5 hours
Number of rainy days: 1 day
Precipitation totals: 1.1 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 81°F. At the same time the lowest night temperature was 75°F. Day and night temperature averages during September were 80.4°F and 76.9°F.

Sea water temperature in Hawaii in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 80.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 80.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Hawaii in September is 1.4 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 14.9 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 September is: 7.0.

Best time for vacation in Hawaii

Sunniest months:
January 16 days
August 16 days
July 15 days
Warmest months:
August 83.4 °F
September 83.1 °F
July 82.5 °F
Warmest sea temp:
September 80.8 °F
October 80.6 °F
August 80.2 °F
Coldest months:
February 76.2 °F
March 76.3 °F
January 76.7 °F
Rainiest months:
March 3 days
February 3 days
November 2 days
Windiest months:
July 17.0 mph
August 15.8 mph
June 15.6 mph

Hawaii on a weather map

Hawaii
+73°F
SW 13 mph
Feels like: +77°F
Precip.: 0%
Places in USA:
Name
°F
+46°F
+43°F
+73°F
+73°F
+41°F
+55°F
+73°F
+66°F
+48°F
+50°F
+55°F
+64°F
+61°F
+54°F
+32°F
24 Hours Forecast
Hawaii
Local time: 04:44
November 21, thursday
0600
73°F
SW
13 mph
0900
75°F
W
16 mph
1200
77°F
W
17 mph
1500
75°F
SW
16 mph
1800
73°F
SW
12 mph
2100
73°F
SW
12 mph
November 22, friday
0000
73°F
SW
12 mph
0300
73°F
SW
9 mph

Best place for vacation:

Units of measurement: °C / °F