August brings 30°C daytime highs, 25mm of precipitation across about 2 wet days and 11.7 hours of daylight — best for beach days and swimming. The strongest run of the year is July to September. December is the quietest month: wet but green, and still good for green season and quiet and local.
Long-run climate normals for Bali. Month ratings compare months within Bali only — they are not a ranking of Bali against other destinations, and they are not a forecast for a specific year.
Last updated: · Live forecast data refreshes hourly.
| Best month | August — Beach days, Swimming |
| Best 3-month window | July–September |
| Quietest month | December — Wet but green |
| Driest month | August — 25mm |
| Wettest month | January — 345mm |
| Warmest / coolest | January 31°C / October 30°C |
| Seasonality | Fairly even across the year |
| Annual rainfall | 1700mm over roughly 115 rain days |
December gets roughly 1004% more precipitation than August — 276mm against 25mm. That difference, more than temperature, is what changes how a day here feels.
Daytime highs only move 1°C across the whole year (30–31°C), so timing matters far less here than rainfall does.
August is the driest month at 25mm across roughly 2 wet days, while January peaks at 345mm.
September is almost as good as August, but usually quieter and cheaper. If your dates are flexible, it is the easier trip.
Bali stays fairly consistent all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Ratings compare months within Bali, not against destinations worldwide: five stars means the best time to be here, not that Bali beats anywhere else. Tags describe what the conditions actually suit.
| Month | Rating | High / Low | Precipitation | Wet days | Sun | Daylight | Best for |
|---|---|---|---|---|---|---|---|
| January | ★★☆☆☆ | 31°C / 24°C | 345mm | 23 | 5h | 12.4h | Green season · Quiet and local |
| February | ★★☆☆☆ | 31°C / 24°C | 274mm | 18 | 5h | 12.3h | Green season · Quiet and local |
| March | ★★☆☆☆ | 31°C / 24°C | 234mm | 16 | 5h | 12h | Beach days · Swimming · Green season |
| April | ★★★★☆ | 31°C / 24°C | 88mm | 6 | 6h | 11.8h | Beach days · Swimming |
| May | ★★★★★ | 30°C / 23°C | 93mm | 6 | 9h | 11.6h | Beach days · Swimming · Reliable sunshine |
| June | ★★★★★ | 30°C / 23°C | 53mm | 4 | 8h | 11.5h | Beach days · Swimming |
| July | ★★★★★ | 30°C / 23°C | 55mm | 4 | 8h | 11.6h | Beach days · Swimming |
| August | ★★★★★ | 30°C / 23°C | 25mm | 2 | 8h | 11.7h | Beach days · Swimming |
| September | ★★★★★ | 30°C / 23°C | 47mm | 3 | 8h | 12h | Beach days · Swimming |
| October | ★★★★★ | 30°C / 23°C | 63mm | 4 | 6h | 12.2h | Beach days · Swimming |
| November | ★★☆☆☆ | 31°C / 24°C | 179mm | 12 | 4h | 12.4h | Beach days · Swimming · Quiet and local |
| December | ★★☆☆☆ | 31°C / 24°C | 276mm | 18 | 5h | 12.5h | Green season · Quiet and local |
| You are planning | Pick | Why |
|---|---|---|
| Sun & beach days | August | 8h daily sunshine, 30°C highs and only 2 rain days. |
| City walking & sightseeing | August | 30°C highs with 11.7h of daylight — long days without heat fatigue. |
| Photography & light | August | 8h of sun and 11.7h daylight give the widest window for golden-hour work. |
| Value & fewer crowds | July | Scores 73/100 — close to peak conditions but outside the busiest window. |
| Cooler-weather travel | August | 30°C highs and 23°C nights suit anyone who dislikes heat. |
Each month in Bali is described from long-run climate normals and then rated relative to the other eleven months in the same city. A five-star January in a cold destination means January is one of the best times to be there — not that it beats a Mediterranean summer.
| Factor | Weight | What it measures |
|---|---|---|
| Temperature | Described | Average daytime high and overnight low for the month, shown as measured rather than judged. |
| Precipitation | Described | Monthly millimetres and wet-day count, labelled as snow or rain/snow where temperatures make that the likely phase. |
| Sunshine & daylight | Described | Average daily sunshine hours and astronomical daylight length at mid-month, from the city’s latitude. |
| “Best for” tags | Derived | Applied only when the conditions genuinely support the activity — snow depth-friendly cold for skiing, 13–24°C and low rain risk for hiking, dark evenings at high latitude for aurora. A month with few strong use cases gets fewer tags rather than padded ones. |
| Star rating | Relative | Ranks the month against the other eleven months in the same city. Never a comparison between cities. |
Figures are long-run climate averages, not a forecast for a specific year. Where a month lacks sourced rainfall or humidity, the value is modelled from temperature range and rain frequency.
August is the best all-round month in Bali: 30°C highs, 25mm of precipitation and 11.7 hours of daylight, which suits beach days and swimming. The strongest three-month window is July to September.
December — 31°C highs, 276mm of precipitation over roughly 18 days and 12.5 hours of daylight. It is the cheapest and least crowded time to go, and it still works for green season and quiet and local.
August is the driest month at 25mm over about 2 rain days, against 345mm in January. Across the year Bali records around 1700mm.
Yes — conditions in Bali stay fairly even all year, so there is no month you need to avoid. What you plan to do matters more than when you go.
Daylight ranges from 11.5 hours in June to 12.5 hours in December, calculated from the city's latitude.