A tropical island with no meaningful temperature season at all — only a wet half-year and a dry one. Bali barely has a temperature season: daytime highs move only about 2 °C across the whole year, from 27 °C in July to 28 °C in October. What changes instead is rain.
Measured against a beach trip, the conditions hold up July to September. August is the most consistent single month: highs near 27 °C, nights around 22 °C, and roughly 46 mm of rain across the month.
The binding constraint here is rainfall — that is what rules months out, not any composite judgement. Rainfall is sharply seasonal: January averages 375 mm against 46 mm in August, so the wet season is the real planning constraint rather than heat or cold. January is the weakest month on these criteria.
Month by month
| Month | High °C | Low °C | Precip mm | Wet days |
|---|---|---|---|---|
| January | 27 | 24 | 375 | 28.8 |
| February | 28 | 24 | 328 | 26.9 |
| March | 28 | 24 | 297 | 27.8 |
| April | 28 | 24 | 191 | 24.0 |
| May | 28 | 24 | 111 | 19.6 |
| June | 27 | 23 | 70 | 16.2 |
| July | 27 | 23 | 62 | 14.7 |
| August | 27 | 22 | 46 | 12.6 |
| September | 27 | 23 | 50 | 13.5 |
| October | 28 | 23 | 119 | 17.7 |
| November | 28 | 24 | 225 | 23.6 |
| December | 28 | 24 | 342 | 28.4 |
Ticked rows are months where every hard requirement for a beach trip is met across at least half the month.
Open Bali on the map →Nearby regions
Figures are 30-year climatology sampled at Kuta, Ubud, Seminyak, Candidasa and Lovina, averaged across those locations, from ERA5-Land reanalysis fitted with a harmonic seasonal cycle and a trend term, evaluated for 2026. Sampling named towns rather than averaging the whole region avoids blending valley and mountain conditions into a figure true of neither. Cells are about 0.08° wide, from ERA5-Land's 0.1° grid, which is itself driven by a 0.25° (~28 km) atmospheric reanalysis — so individual valleys, sheltered bays and single summits are not resolved. In steep terrain read these as conditions for the wider area rather than for one village. They describe typical conditions, not a forecast. Read how the climatology is built.