Surabaya in september: average Weather, Temperature and Climate
Weather in Surabaya in september 2025
The weather in Surabaya in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 8
Weather at 6am
83°F
Clear/Sunny
79% of time
16%
6%
1%
Weather at 12pm
92°F
Clear/Sunny
77% of time
19%
4%
1%
Weather at 6pm
85°F
Clear/Sunny
69% of time
18%
11%
3%
Weather at 3am
79°F
74%
17%
10%
1%
Evolution of daily average temperature and precipitation in Surabaya in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Surabaya in september.
The climate of Surabaya in september is good
the weather in Surabaya in september is rather dry (with 0.9in of rainfall over 1 days). The weather is worst than the previous month since in august there is an average of 0.6in of precipitation over 1 days.
The climate is very warm here the month of september. The thermometer averaged maximum of 92°F. The minimum is 83°F. Thus, the mean temperature average on this month of september in Surabaya is 88°F. Note that these seasonal averages are in contrast with those observed in Surabaya in september with a maximum record of 97°F in 2009 and a minimum record of 76°F in 2021. You You can hope to have 86°F or more throughout the month.
On this month of september, day length in Surabaya is generally 12:03. Sunrise is at 05:23 and sunset is at 17:26.
With good weather conditions, this month is a good month to go there in Indonesia.
Seasonal average climate and temperature of Surabaya in september
Check below seasonal norms These statistics are set from the weather statements earlier years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 88°F | ||||
| Highest temperature | 92°F | ||||
| Lowest temperature | 83°F | ||||
| Highest record temperature | 97°F (2009) | ||||
| Lowest record temperature | 76°F (2021) | ||||
| Number of days at +86°F | 30 day(s) (100%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 81°F | ||||
| Highest sea temperature | 86°F | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 83°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 0.9in | ||||
| Number of days with rainfall | 1 day(s) (4%) | ||||
| Record daily rainfall | 1in (2010) | ||||
| Other climate data | |||||
| Humidity | 70% | ||||
| Visibility | 9.91km | ||||
| Cloud cover | 14% | ||||
| UV index | 8 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:23 | ||||
| Time of sunset | 17:26 | ||||
| Length of day | 12:03 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Surabaya in september 2024:
76°F to 90°F
77°F to 90°F
77°F to 90°F
77°F to 90°F
77°F to 90°F
77°F to 90°F
77°F to 90°F
79°F to 90°F
79°F to 92°F
79°F to 90°F
79°F to 92°F
77°F to 92°F
77°F to 92°F
77°F to 90°F
77°F to 92°F
77°F to 90°F
77°F to 90°F
76°F to 90°F
77°F to 90°F
77°F to 90°F
79°F to 90°F
81°F to 90°F
79°F to 90°F
81°F to 90°F
79°F to 90°F
81°F to 92°F
81°F to 90°F
81°F to 90°F
81°F to 92°F
81°F to 92°F
Map: other cities on the island of Java in september
Cities near Surabaya:
| Sidoarjo in september | good weather |
| Bangkalan in september | good weather |
| Mojokerto in september | good weather |
| Batu in september | good weather |
| Probolinggo in september | good weather |
| Gunung Bromo in september | good weather |
| Malang in september | good weather |
| Tuban in september | good weather |
| Bromo Tengger Semeru National Park in september | good weather |
| Kediri in september | good weather |
| Lumajang in september | good weather |
| Blitar in september | good weather |
Click over cities on the map for information about the weather in september.
Surabaya
perfect weather
good
tolerable
bad
very bad
Weather data for Surabaya in september:
Weather data for Surabaya for september are derived from an average of the weather forecast since 2009 in Surabaya. There is a margin of error and these forecasts are to be considered as general information only. The weather in Surabaya can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Surabaya.