Bali Weather in September
In the south it is warm and mostly dry, with highs of 82°F (28°C) and the sea at 83°F (28°C). In Ubud it is warm and showery, with highs of 82°F (28°C). In the north it is hot and mostly dry, with highs of 88°F (31°C) and the sea at 84°F (29°C). Rating: Excellent — best in the north.
Excellentwarm and dry, warm sea, in the north
Climate normals checked September 29, 2026 · Source: Open-Meteo (ERA5) · How we calculate
Bali weather in September by region
| Region | Day high | Night low | Sea | Rainy days | Rainfall | Humidity |
|---|---|---|---|---|---|---|
| SouthKuta, Seminyak, Bukit | 82°F (28°C) | 73°F (23°C) | 83°F (28°C) | 18 | 2.6 in (65 mm) | 84% |
| Ubudinland | 82°F (28°C) | 70°F (21°C) | — | 21 | 4.1 in (104 mm) | 85% |
| NorthLovina | 88°F (31°C) | 76°F (24°C) | 84°F (29°C) | 9 | 1.7 in (44 mm) | 71% |
Flight time from the US
We're still checking flight times from JFK, LAX and SFO to Bali. This block will show them once our flight data is ready.
Other months in Bali
- Jan84°FJanuary: Mixed
- Feb84°FFebruary: Mixed
- Mar84°FMarch: Mixed
- Apr84°FApril: Good
- May86°FMay: Good
- Jun85°FJune: Good
- Jul86°FJuly: Excellent
- Aug86°FAugust: Excellent
- Sep88°FSeptember: Excellent
- Oct84°FOctober: Good
- Nov85°FNovember: Mixed
- Dec84°FDecember: Mixed
Excellent Good Mixed Off-season
Bali in September: FAQ
What's the weather like in Bali in September?
In the south it is warm and mostly dry, with highs of 82°F (28°C) and the sea at 83°F (28°C). In Ubud it is warm and showery, with highs of 82°F (28°C). In the north it is hot and mostly dry, with highs of 88°F (31°C) and the sea at 84°F (29°C).
Is September a good time to visit Bali?
We rate September as Excellent. Yes — best in the north, with highs of 88°F (31°C) and about 1.7 in (44 mm) of rain for the month.
Is September rainy season in Bali?
Driest in the north, with about 1.7 in (44 mm) of rain and 9 rainy days. In the south: 2.6 in (65 mm).
How does Bali in September compare to October?
October rates Good, September rates Excellent. In the best region, September brings highs of 88°F (31°C) and 1.7 in (44 mm) of rain; October brings 84°F (29°C) and 3.5 in (88 mm).
Where the data comes from
- Air temperature, rainfall, humidity — ERA5 reanalysis (Copernicus / ECMWF) via Open-Meteo, averaged over 2015–2024. Each region uses one point: the resort or city in its caption.
- Sea temperature — Open-Meteo Marine, average sea surface temperature for 2023–2026 (the source has no longer record yet).
- Rainy days — days with at least 1 mm (0.04 in) of rain. Reanalysis picks up light rain more often than weather stations, so treat this as an upper bound.
- Month rating — one rule for every destination, based on three factors: day highs (ideal 75–91°F / 24–33°C), monthly rainfall (ideal under 80 mm / 3.1 in) and, for beach regions, sea temperature (ideal 77°F / 25°C or warmer). All ideal means Excellent; one slightly weaker factor means Good. Mixed means heavy rain (150 mm / 5.9 in or more), highs above 97°F (36°C) or a sea below 70°F (21°C). Off-season means highs of 100°F (38°C) or more, cold below 54°F (12°C), over 350 mm (13.8 in) of rain, or several problems at once. A country's rating follows its best region, so check the regional table.
Checked September 29, 2026. Climate normals are refreshed yearly and the notes every 90 days. These are long-term averages, not a forecast: any given year can differ.
