Weather in Bali for September 2025
Until now, September 2025 in Bali is slightly cooler than the historical average by -0.9 °C.
The forecast for the next days in Bali predicts temperatures to be around 28 °C, close to the historical average.
In general, the average temperature in Bali at the beginning of September is 28.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 28 °C by the end of September.
Bali in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 79.2 mm.
Is September a good time to visit Bali? check out the best time to travel to Bali page.
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Bali Weather September
What’s the Weather Like in Bali This September?
Temperatures trend during September in Bali
September weather in Bali day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 28° /21° | 0.2 mm | 8 | |
| 2 Sept. | Patchy rain possible | 29° /21° | 0.6 mm | 8 | |
| 3 Sept. | Patchy rain possible | 29° /21° | 0.7 mm | 8 | |
| 4 Sept. | Patchy rain possible | 28° /21° | 0.7 mm | 7 | |
| 5 Sept. | Patchy rain possible | 28° /22° | 0.2 mm | 7 | |
| 6 Sept. | Patchy rain possible | 28° /22° | 0.9 mm | 7 | |
| 7 Sept. | Patchy rain possible | 28° /22° | 1.3 mm | 7 | |
| 8 Sept. | Patchy rain possible | 28° /22° | 0.5 mm | 7 | |
| 9 Sept. | Patchy rain possible | 28° /22° | 6.9 mm | 7 | |
| 10 Sept. | Patchy rain possible | 28° /22° | 4.9 mm | 7 | |
| 11 Sept. | Patchy rain possible | 28° /22° | 10.7 mm | 7 | |
| 12 Sept. |  Partly cloudy | 28° /22° | 4.4 mm | 8 | |
| 13 Sept. | Patchy rain possible | 28° /22° | 6.1 mm | 7 | |
| 14 Sept. |  Moderate or heavy rain shower | 28° /22° | 7.3 mm | 7 | |
| 15 Sept. | Patchy rain possible | 28° /22° | 2.2 mm | 7 | |
| 16 Sept. | Patchy rain possible | 29° /22° | 1.1 mm | 7 | |
| 17 Sept. | Patchy rain possible | 27° /22° | 0.7 mm | 2.5 | |
| 18 Sept. | Patchy rain possible | 27° /23° | 3.4 mm | 2.7 | |
| 19 Sept. | Patchy rain possible | 28° /23° | 1.2 mm | 2.7 | |
| 20 Sept. | Patchy rain possible | 27° /23° | 0.8 mm | 3.4 | |
| 21 Sept. | Patchy rain possible | 28° /23° | 0.2 mm | 7 | |
| 22 Sept. | Patchy rain possible | 28° /23° | 0.7 mm | 6 | |
| 23 Sept. |  Sunny | 29° /23° | 0 mm | 8 | |
| 24 Sept. | Patchy rain possible | 29° /23° | 1 mm | 7 | |
| 25 Sept. | Patchy rain possible | 28° /23° | 0.3 mm | 6 | |
| 26 Sept. | Partly cloudy | 28° /23° | 0.1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 28° /23° | 1.3 mm | 6 | |
| 28 Sept. | Patchy rain possible | 28° /23° | 0.8 mm | 6 | |
| 29 Sept. | Patchy rain possible | 27° /23° | 1.7 mm | 6 | |
| 30 Sept. | Patchy rain possible | 28° /23° | 1.1 mm | 7 | |
| Next | |||||
Bali weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Patchy rain possible | Patchy rain possible | Patchy rain possible |
| Temperatures | 27°/22° | 28°/22° | 29°/23° |
| Rainfall | 39 mm | 79 mm | 166 mm |
| Wind | 9.4 km/h | 9.5 km/h | 9.2 km/h |
| Humidity | 75% | 75% | 74% |
| Rainy days | 12 days | 19 days | 30 days |
| Dry days | 19 days | 11 days | 1 days |
Planning a trip to Bali? Discover the best time to visit
Bali in September - FAQ
Bali water temperatures in September
The average water temperature of the Indian Ocean near Bali in September is 27.5 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Bali in September?
- The average water temperature in Bali in September is 27.5 °C.
- Can you swim in Bali in September?
- Ideal conditions for families and casual swimmers. You can stay in for long swims or reef explorations with no thermal protection required.
What to pack to Bali in September?
As you prepare for your trip to Bali 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 Bali, 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
- 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 Bali
UV exposure in Bali during September
Quick links
Where is Bali?Get accurate weather forecasts for Bali, located at latitude -8.333 and longitude 115. Stay updated with localized weather information tailored for Bali.