Weather in East Kalimantan for September 2025
Until now, September 2025 in East Kalimantan is slightly cooler than the historical average by -0.9 °C.
The forecast for the next days in East Kalimantan predicts temperatures to be around 29 °C, close to the historical average.
In general, the average temperature in East Kalimantan at the beginning of September is 28.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.3 °C by the end of September.
East Kalimantan experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 103.9 mm.
Is September a good time to visit East Kalimantan? check out the best time to travel to East Kalimantan page.
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East Kalimantan Weather September
Temperatures trend during September in East Kalimantan
September weather in East Kalimantan day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Cloudy | 29° /24° | 4.4 mm | 7 | |
| 2 Sept. |  Overcast | 29° /25° | 3.2 mm | 7 | |
| 3 Sept. |  Patchy rain possible | 29° /25° | 2.8 mm | 7 | |
| 4 Sept. | Light rain shower | 29° /25° | 5.4 mm | 7 | |
| 5 Sept. | Light rain shower | 29° /24° | 7.7 mm | 7 | |
| 6 Sept. | Light rain shower | 28° /24° | 16.6 mm | 7 | |
| 7 Sept. | Light rain shower | 29° /24° | 6.8 mm | 7 | |
| 8 Sept. | Light rain shower | 29° /24° | 8.4 mm | 7 | |
| 9 Sept. | Light rain shower | 29° /24° | 7.1 mm | 7 | |
| 10 Sept. | Overcast | 29° /24° | 2.2 mm | 7 | |
| 11 Sept. | Light rain shower | 29° /24° | 4.6 mm | 7 | |
| 12 Sept. | Overcast | 28° /24° | 2.5 mm | 7 | |
| 13 Sept. | Cloudy | 28° /24° | 3.2 mm | 7 | |
| 14 Sept. | Cloudy | 29° /25° | 6.3 mm | 7 | |
| 15 Sept. | Cloudy | 29° /25° | 7.5 mm | 7 | |
| 16 Sept. | Light rain shower | 29° /24° | 9.9 mm | 7 | |
| 17 Sept. | Patchy rain possible | 28° /25° | 10 mm | 7 | |
| 18 Sept. |  Moderate rain | 28° /24° | 16.3 mm | 0.9 | |
| 19 Sept. | Patchy rain possible | 29° /24° | 0.6 mm | 3 | |
| 20 Sept. | Moderate rain | 29° /24° | 11.6 mm | 2.9 | |
| 21 Sept. | Moderate rain | 30° /25° | 13 mm | 3.1 | |
| 22 Sept. | Patchy rain possible | 30° /24° | 0.6 mm | 3.6 | |
| 23 Sept. | Patchy rain possible | 30° /25° | 0.5 mm | 7 | |
| 24 Sept. | Patchy rain possible | 30° /26° | 0.5 mm | 7 | |
| 25 Sept. | Patchy rain possible | 29° /24° | 0.2 mm | 7 | |
| 26 Sept. | Patchy rain possible | 30° /24° | 1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 30° /26° | 0.1 mm | 7 | |
| 28 Sept. | Patchy rain possible | 30° /25° | 1.8 mm | 7 | |
| 29 Sept. | Patchy rain possible | 29° /24° | 0.7 mm | 7 | |
| 30 Sept. | Patchy rain possible | 27° /24° | 0.3 mm | 7 | |
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East Kalimantan weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 28°/25° | 29°/25° | 29°/25° |
| Rainfall | 239 mm | 104 mm | 147 mm |
| Wind | 16 km/h | 17 km/h | 13.3 km/h |
| Humidity | 82% | 77% | 78% |
| Rainy days | 28 days | 23 days | 31 days |
| Dry days | 3 days | 7 days | 0 days |
Planning a trip to East Kalimantan? Discover the best time to visit
East Kalimantan in September - FAQ
What to pack to East Kalimantan in September?
As you prepare for your trip to East Kalimantan 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 East Kalimantan, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in East Kalimantan
UV exposure in East Kalimantan during September
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Where is East Kalimantan?Get accurate weather forecasts for East Kalimantan, located at latitude -1.268 and longitude 116.829. Stay updated with localized weather information tailored for East Kalimantan.