Swimming in Surabaya in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Surabaya in september 2025.
In september, according to seasonal norms, the sea temperature in Surabaya is:
Minimum: 81°F
Average: 83°F
Maximum: 86°F
Other useful seasonal weather averages in september:
- Outside temperature: 82°F to 92°F
- Most common weather: "Clear/Sunny"
- The wind blows at 17.4mph
- It rains a total of 0.9in, over 1 day(s).
Should we swim in Surabaya in september?
Yes! The water temperature in Surabaya in september is ideal
In september, swimming is ideal on the beaches around Surabaya! With water reaching 86°F at most and 83°F on average, spending time in the water is very pleasant.
Note also that in september, the climate is good with an average outside temperature of 87°F, 0.9in of precipitation (over 1 days) and 69.16 % humidity.
Water and normal seasonal temperatures in Surabaya in september
| September | |||
| Average sea temperature | 83°F | ||
| Minimum sea temperature | 81°F | ||
| Maximum sea temperature | 86°F | ||
| Average outside temperature | 88°F | ||
| Maximum outside temperature | 92°F | ||
| Minimum outside temperature | 83°F | ||
| Wind speed | 9.3mph | ||
| Wind temperature | 83°F | ||
| Precipitation | 0.9in | ||
| Number of days of rain | 1 jour(s) (4%) | ||
| Humidity | 70% | ||
| Visibility in kilometers | 9.91km | ||
| Cloud cover | 14% | ||
| Our opinion | ideal swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Surabaya
Swim elsewhere on the island of Java in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Jakarta in september | 84°F | 86°F | ideal swimming | Semarang in september | 84°F | 86°F | ideal swimming |
Swim on the island of Java in september: sea temperature by city