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Jakarta weather in September

Weather in Jakarta: September

Average day temperature: 91.9°F
Average night temperature: 80.7°F
Sea water temperature: 84.1°F
Number of sunny days: 17 days
Day length: 12.0 - 12.1 hours
Number of rainy days: 4 days
Precipitation totals: 2.0 in.

Air temperature in September, °F

Show year:
2026
2025
2024

The highest day temperature during September of 2026 was 91°F. At the same time the lowest night temperature was 78°F. Daily and nightly averages during September were 90.6°F and 80.8°F.

Sea water temperature in Jakarta in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 84.2°F. The highest and lowest sea temperatures during the month were 84.9°F and 83.5°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 Jakarta in September is 1.1 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.9 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: 7.1.

Best time for vacation in Jakarta

Sunniest months:
August 19 days
July 18 days
September 17 days
Warmest months:
October 92.6 °F
May 91.9 °F
September 91.9 °F
Warmest sea temp:
May 85.9 °F
November 85.5 °F
April 85.5 °F
Coldest months:
February 88.9 °F
January 89.3 °F
July 90.7 °F
Rainiest months:
February 12 days
April 12 days
March 11 days
Windiest months:
January 8.7 mph
December 7.6 mph
February 7.4 mph

Jakarta on a weather map

Jakarta
+88°F
SW 4 mph
Feels like: +95°F
Precip.: 9%
Places in Indonesia:
Name
°F
+90°F
+88°F
+81°F
+88°F
+81°F
+86°F
+81°F
+81°F
+82°F
+81°F
+81°F
+81°F
+79°F
+81°F
+81°F
24 Hours Forecast
Jakarta
Local time: 09:59
October 11, sunday
1200
93°F
S
11 mph
1500
90°F
S
15 mph
1800
86°F
S
7 mph
2100
84°F
S
3 mph
October 12, monday
0000
84°F
SW
1 mph
0300
82°F
SW
0 mph
0600
82°F
N
2 mph
0900
88°F
W
1 mph
Units of measurement: °C / °F