Destination guide
Bali weather by month
Bali is best for outdoor holiday plans from July to September, with August and September the strongest choices. August averages 26°C by day, 6 hours of sunshine and 12 rainy days, so the catch is that even the driest period is not reliably rain-free. Temperatures change little through the year; sunshine and rainfall make the bigger difference. Choose the wetter months if warmth matters more than clear skies, and keep your daily plans flexible.
- Hottest month
- 28.0°CApril
- Coolest month
- 26.2°CAugust
- Warmest sea
- 28.9°CFebruary
- Flight from London
- 16 h 24 minLong-haul (7 h+) · estimated
Bali, month by month
A little perspective
Bali through the year
Every month at a glance; "best" marks our three top months on warmth, dryness and sunshine.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 27.6°C | 24.5°C | 28.7°C | 1.7 | 287 | 28 | 100% |
| February | 27.8°C | 24.5°C | 28.9°C | 1.8 | 249 | 25 | 100% |
| March | 27.9°C | 24.5°C | 28.9°C | 2.9 | 207 | 25 | 100% |
| April | 28.0°C | 24.8°C | 28.7°C | 3.9 | 132 | 20 | 100% |
| May | 27.7°C | 24.8°C | 27.9°C | 5.6 | 72 | 15 | 100% |
| June | 27.0°C | 24.3°C | 27.2°C | 5.7 | 52 | 13 | 99% |
| Julybest | 26.3°C | 23.6°C | 26.2°C | 5.6 | 43 | 13 | 96% |
| Augustbest | 26.2°C | 23.2°C | 25.7°C | 5.8 | 31 | 12 | 97% |
| Septemberbest | 26.8°C | 23.2°C | 26.0°C | 5.6 | 43 | 13 | 99% |
| October | 27.6°C | 23.8°C | 26.8°C | 5.3 | 60 | 16 | 100% |
| November | 28.0°C | 24.4°C | 28.1°C | 3.7 | 139 | 21 | 100% |
| December | 27.7°C | 24.5°C | 28.8°C | 1.9 | 249 | 26 | 100% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
When to go to Bali
For beach weather, look at months where the daytime average clears 25°C and rainy days stay low: January, February, March, April, May, June, July, August, September, October, November, December. January is the wettest month (287 mm, about 28 rainy days) and August the driest (31 mm). The sea is warmest in February at 28.9°C and coolest in August at 25.7°C.
Getting there
A direct flight from London Gatwick to Denpasar I Gusti Ngurah Rai International Airport (DPS, 3 km from Kuta) takes roughly 16 h 24 min - long-haul (7 h+) by UK standards. Time-zone: Asia/Makassar.
Records and extremes, 1991-2020
The hottest day recorded in Bali between 1991 and 2020 reached 33.5°C on 20 February 2012; the coldest fell to 19.3°C on 31 August 1994. In April one day in ten tops 29.4°C and about 4% of days pass 30°C; in August one night in ten drops to 22.3°C or below. The wettest single month of the period was December 2007 with 568 mm, against a December average of 249 mm.
Sunrise, sunset and daylight in Bali
Local time on the 15th of each month; daylight-saving rules as of 2020.
| Month (15th) | Sunrise | Sunset | Daylight | Sunshine/day |
|---|---|---|---|---|
| January | 06:11 | 18:46 | 12.6 h | 1.7 h |
| February | 06:22 | 18:45 | 12.4 h | 1.8 h |
| March | 06:24 | 18:33 | 12.2 h | 2.9 h |
| April | 06:22 | 18:17 | 11.9 h | 3.9 h |
| May | 06:24 | 18:07 | 11.7 h | 5.6 h |
| June | 06:31 | 18:08 | 11.6 h | 5.7 h |
| July | 06:36 | 18:15 | 11.7 h | 5.6 h |
| August | 06:29 | 18:19 | 11.8 h | 5.8 h |
| September | 06:13 | 18:16 | 12.1 h | 5.6 h |
| October | 05:56 | 18:14 | 12.3 h | 5.3 h |
| November | 05:49 | 18:19 | 12.5 h | 3.7 h |
| December | 05:56 | 18:33 | 12.6 h | 1.9 h |
January to April: warm, but rain shapes your plans
January is the hardest month for weather-dependent plans, with rain on 28 days and just 2 hours of sunshine daily. February and March remain wet, although March offers a little more sunshine. April is an improvement rather than a clean break: rainy days fall to 20 and sunshine rises to 4 hours. Daytime averages stay at 28°C throughout this period, so wet weather does not mean cool weather. Nights are warm too, making light clothing more useful than heavy layers. Pack rain protection and footwear you do not mind getting wet. This period suits travellers who can rearrange outdoor plans rather than needing dependable sunshine.
May to September: more sunshine, with some rain still likely
May marks a more useful shift for outdoor holidays: sunshine reaches 6 hours daily, while rainy days fall to 15. June keeps that sunshine with slightly cooler days, and July brings daytime averages down to 26°C. August and September offer the fewest rainy days, at 12 each, making them the strongest choices for spending time outside. The sea is cooler than in the wet season, averaging 26°C from July to September, but still warm enough to make swimming appealing. Choose this window if sunshine matters more than the warmest sea. Keep sun protection and a light waterproof handy; the better weather does not remove the chance of rain.
October to December: outdoor plans need more flexibility
October is a compromise month, with 5 hours of sunshine and 16 rainy days. It offers more scope for outdoor time than the wetter months, but less consistency than August or September. November shifts further towards wet weather, with 21 rainy days and 4 hours of sunshine. By December, rain occurs on 26 days and sunshine falls to 2 hours, making it a weaker choice for a sunshine-led holiday. Daytime averages remain at 28°C throughout, while the sea warms towards 29°C in December. Pack for warmth and rain together, and avoid making every day depend on clear skies. Evenings stay warm rather than providing much cooling relief.
A little more detail
Bali weather FAQs
Plain answers, grounded in the averages.
What is the best time to visit Bali?
Judged on warmth, low rainfall and sunshine, the best months in Bali are August, September and July. April is the hottest month (average high 28.0°C) and August the coolest (26.2°C).
How many months a year is Bali over 25°C?
12 months in Bali average a daytime high of 25°C or more, and 12 average 20°C or more.
When is the rainy season in Bali?
January is the wettest month in Bali (287 mm on average) and August the driest (31 mm). Annual rainfall averages 1564 mm.
What is the hottest temperature recorded in Bali?
The hottest day recorded in Bali between 1991 and 2020 reached 33.5°C on 20 February 2012; the coldest fell to 19.3°C on 31 August 1994. Records come from daily data for 1991-2020, not from a single station's all-time history.
When is the sea warmest in Bali?
The sea averages 29°C from January to April and again in December. These months suit travellers who prioritise warmer water, but the trade-off is wetter weather and less sunshine than in the middle of the year.
Does Bali get cool enough to need warm clothes?
For the average temperatures shown, light clothing is the more useful starting point. August is the coolest month, with days around 26°C and nights around 23°C. Even then, evenings remain warm rather than cold.
Is May or October better for sunshine?
May has the advantage, averaging 6 hours of sunshine and 15 rainy days, compared with October's 5 hours and 16 rainy days. Both average 28°C by day, so choose May for more sunshine rather than a difference in daytime warmth.
See also: Indonesia weather by month · where else is hot in April
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Kuta (Kuta (south Bali)). Sea temperature from the nearest 5 km sea cell, 5.2 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C