Surabaya
September
Weather in Surabaya for September 2025
Your guide to Surabaya weather in September - trends and predictions
In general, the average temperature in Surabaya at the beginning of September is 31.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 32.4 °C by the end of September.
Precipitation in Surabaya during September is a rare event, with an average of fewer than 2 rainy days.
Is September a good time to visit Surabaya? check out the best time to travel to Surabaya page.
- New! Chat with our AI weatherman - it’s amazing and free.
29
Dry days
1
Rainy days
0
Snow days
31°/23°
Temperatures
19 km/h
Avg max wind
62 %
Avg humidity
Surabaya in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2 31° | 3 32° | 4 32° | 5 31° | 6 32° | 7  32° |
| 8 31° | 9 32° | 10 32° | 11 32° | 12 32° | 13 32° | 14 32° |
| 15 33° | 16 32° | 17  32° | 18  32° | 19 32° | 20 32° | 21 32° |
| 22 32° | 23 32° | 24 32° | 25 32° | 26 33° | 27 32° | 28 32° |
| 29 33° | 30 33° |
You can click on date
Access Surabaya weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Surabaya
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Sunny | 31° /23° | 0 mm | 9 | |
| 2 Sept. | Sunny | 31° /23° | 0.1 mm | 9 | |
| 3 Sept. | Sunny | 32° /23° | 0.1 mm | 9 | |
| 4 Sept. | Sunny | 32° /23° | 0.2 mm | 8 | |
| 5 Sept. | Sunny | 31° /23° | 0.1 mm | 8 | |
| 6 Sept. | Sunny | 32° /24° | 0 mm | 9 | |
| 7 Sept. | Partly cloudy | 32° /24° | 0.7 mm | 8 | |
| 8 Sept. | Partly cloudy | 31° /24° | 0.3 mm | 9 | |
| 9 Sept. | Sunny | 32° /24° | 0.3 mm | 8 | |
| 10 Sept. | Sunny | 32° /24° | 2.7 mm | 8 | |
| 11 Sept. | Sunny | 32° /24° | 0.3 mm | 8 | |
| 12 Sept. | Partly cloudy | 32° /24° | 0.2 mm | 8 | |
| 13 Sept. | Sunny | 32° /24° | 0 mm | 9 | |
| 14 Sept. | Partly cloudy | 32° /24° | 0 mm | 9 | |
| 15 Sept. | Sunny | 33° /23° | 0.1 mm | 8 | |
| 16 Sept. | Sunny | 32° /24° | 0 mm | 8 | |
| 17 Sept. | Patchy rain possible | 32° /24° | 0.3 mm | 8 | |
| 18 Sept. | Overcast | 32° /24° | 0 mm | 8 | |
| 19 Sept. | Patchy rain possible | 32° /24° | 0 mm | 8 | |
| 20 Sept. | Patchy rain possible | 32° /24° | 0.1 mm | 8 | |
| 21 Sept. | Partly cloudy | 32° /24° | 0.1 mm | 8 | |
| 22 Sept. | Sunny | 32° /24° | 0.1 mm | 8 | |
| 23 Sept. | Sunny | 32° /24° | 2.2 mm | 8 | |
| 24 Sept. | Patchy rain possible | 32° /25° | 0.4 mm | 8 | |
| 25 Sept. | Patchy rain possible | 32° /24° | 1.1 mm | 8 | |
| 26 Sept. | Sunny | 33° /24° | 1.9 mm | 8 | |
| 27 Sept. | Sunny | 32° /24° | 2.4 mm | 8 | |
| 28 Sept. | Sunny | 32° /25° | 0.4 mm | 8 | |
| 29 Sept. | Partly cloudy | 33° /25° | 0.1 mm | 8 | |
| 30 Sept. | Partly cloudy | 33° /25° | 0.1 mm | 9 | |
| Next | |||||
Important Notice
Our weather forecast for Surabaya in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Surabaya forecast closer to your planned date for the most up-to-date weather information.
Surabaya in September - FAQ
What are the expected maximum and minimum temperatures in Surabaya during September?
During September, expect a variety of temperatures with highs around 31° and lows near 23°, suitable for diverse activities and preferences.
How much rainfall should be expected in Surabaya during September?
Rainfall in Surabaya during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Surabaya during September?
The average wind speed in Surabaya during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Surabaya in September?
As you prepare for your trip to Surabaya in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Surabaya, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Footwear
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
Quick links
You are here
Where is Surabaya?Get accurate weather forecasts for Surabaya, located at latitude -7.249 and longitude 112.751. Stay updated with localized weather information tailored for Surabaya.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.