Weather in Semarang for September 2026
So far, September 2026 in Semarang is slightly warmer than the historical average by 1 °C.
The forecast for the next days in Semarang predicts temperatures to be around 34 °C, close to the historical average.
In general, the average temperature in Semarang at the beginning of September is 34.6 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 33.6 °C by the end of September.
Semarang experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 133.3 mm.
Is September a good time to visit Semarang? check out the best time to travel to Semarang page.
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Semarang Weather September
Temperatures trend during September in Semarang
September weather in Semarang day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 34° /23° | 0.2 mm | 9 | |
| 2 Sept. | Patchy rain possible | 35° /22° | 0.2 mm | 9 | |
| 3 Sept. | Patchy rain possible | 34° /23° | 0.2 mm | 9 | |
| 4 Sept. | Patchy rain possible | 35° /23° | 1.2 mm | 9 | |
| 5 Sept. |  Patchy light drizzle | 35° /22° | 0.6 mm | 9 | |
| 6 Sept. |  Partly cloudy | 35° /22° | 0 mm | 8 | |
| 7 Sept. | Partly cloudy | 34° /22° | 0 mm | 10 | |
| 8 Sept. | Patchy rain possible | 34° /23° | 0 mm | 9 | |
| 9 Sept. | Patchy rain possible | 34° /23° | 5.4 mm | 8 | |
| 10 Sept. |  Moderate or heavy rain shower | 33° /23° | 30 mm | 8 | |
| 11 Sept. | Patchy rain possible | 33° /23° | 7.1 mm | 8 | |
| 12 Sept. | Patchy rain possible | 33° /23° | 0.6 mm | 6 | |
| 13 Sept. |  Cloudy | 34° /23° | 1.2 mm | 9 | |
| 14 Sept. |  Sunny | 34° /23° | 0.7 mm | 8 | |
| 15 Sept. | Sunny | 34° /23° | 0.7 mm | 9 | |
| 16 Sept. | Sunny | 32° /23° | 6 mm | 9 | |
| 17 Sept. |  Smoky haze | 35° /23° | 0 mm | 11.4 | |
| 18 Sept. | Smoky haze | 34° /24° | 0.3 mm | 10.6 | |
| 19 Sept. | Smoky haze | 36° /24° | 0.3 mm | 10.3 | |
| 20 Sept. | Smoky haze | 36° /24° | 0.6 mm | 11.2 | |
| 21 Sept. | Partly cloudy | 35° /24° | 0 mm | 10.6 | |
| 22 Sept. |  Overcast | 35° /24° | 0 mm | 9 | |
| 23 Sept. | Partly cloudy | 35° /23° | 0 mm | 9 | |
| 24 Sept. | Patchy rain possible | 33° /24° | 0.1 mm | 9 | |
| 25 Sept. | Overcast | 35° /24° | 0.1 mm | 8 | |
| 26 Sept. | Patchy rain possible | 34° /24° | 1.3 mm | 9 | |
| 27 Sept. | Sunny | 34° /24° | 0.1 mm | 9 | |
| 28 Sept. | Overcast | 34° /24° | 2.4 mm | 9 | |
| 29 Sept. | Overcast | 33° /24° | 0 mm | 8 | |
| 30 Sept. | Overcast | 32° /24° | 0.9 mm | 8 | |
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Semarang weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 31°/23° | 33°/24° | 33°/24° |
| Rainfall | 136 mm | 133 mm | 158 mm |
| Wind | 13.9 km/h | 16.2 km/h | 16.9 km/h |
| Humidity | 73% | 68% | 70% |
| Rainy days | 19 days | 21 days | 28 days |
| Dry days | 12 days | 9 days | 3 days |
Planning a trip to Semarang? Discover the best time to visit
Semarang in September - FAQ
What are the expected maximum and minimum temperatures in Semarang during September?
How much rainfall should be expected in Semarang during September?
What are the typical wind conditions in Semarang during September?
September rainfall patterns in Semarang
UV exposure in Semarang during September
What to pack to Semarang in September?
Warm & sunny · highs around 33 °C, frequent showers
As you prepare for your trip to Semarang 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 Semarang, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
🧴 Personal Items
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Where is Semarang?Get accurate weather forecasts for Semarang, located at latitude -6.993 and longitude 110.421. Stay updated with localized weather information tailored for Semarang.