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Bali weather in September

Weather in Bali: September

Average day temperature: 83.3°F
Average night temperature: 71.6°F
Sea water temperature: 82.7°F
Number of sunny days: 11 days
Day length: 11.9 - 12.2 hours
Number of rainy days: 1 day
Precipitation totals: 1.1 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 83°F. At the same time the lowest night temperature was 70°F. Daily and nightly averages during September were 80.9°F and 73.4°F.

Sea water temperature in Bali in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 83.7°F. The highest and lowest sea temperatures during the month were 84.4°F and 82.8°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Bali in September is 1.5 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 4.8 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: 5.6.

Best time for vacation in Bali

Sunniest months:
October 12 days
September 11 days
April 10 days
Warmest months:
December 85.5 °F
March 85.3 °F
October 85.2 °F
Warmest sea temp:
May 85.7 °F
April 85.7 °F
November 85.4 °F
Coldest months:
July 80.5 °F
August 81.4 °F
June 82.2 °F
Rainiest months:
January 12 days
December 11 days
March 11 days
Windiest months:
July 6.2 mph
August 6.1 mph
September 5.8 mph

Bali on a weather map

Bali
+82°F
SW 2 mph
Feels like: +86°F
Precip.: 100%
Places in Indonesia:
Name
°F
+82°F
+86°F
+86°F
+84°F
+91°F
+82°F
+82°F
+82°F
+82°F
+84°F
+82°F
+84°F
+82°F
+84°F
+82°F
24 Hours Forecast
Bali
Local time: 15:51
December 05, friday
1800
79°F
SE
1 mph
2100
77°F
NE
5 mph
December 06, saturday
0000
75°F
N
6 mph
0300
75°F
N
6 mph
0600
75°F
N
4 mph
0900
79°F
NE
2 mph
1200
82°F
SE
4 mph
1500
79°F
S
2 mph
Units of measurement: °C / °F