Indonesia
Bali in January: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Bali in January is climatically well suited to beach holidays. The average daily high is around 28 °C, and the sea is about 29 °C. With about 28 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
58/100 · #9
Warmth
#7
Dryness
#12
Sun
#9
Sea warmth
#4
Published best categories: none
Bali · JanuaryPhoto: Gunadhi · CC BY-SA 4.0Climate facts
- Average high
- 28 °C
- Average low
- 24 °C
- Sea
- 29 °C
- Rainy days (est.)
- 28 rainy days (est.)
- Sun (est.)
- 7 h/day
- Humidity
- 86 %
For your trip planning
January: distinguish rainfall total from rainy days
January has more rainy days and rainfall than December, with a slightly lower daytime high and almost the same sea temperature. That does not establish all-day rain. If dates are flexible, compare September: far fewer rainy days and a similar high, but cooler water.
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| December | 29 | 24 | 26 | 265 | 6.7 | 84 | 1.2 | 29 | 57 |
| January (selected) | 28 | 24 | 28 | 314 | 6.5 | 86 | 1.3 | 29 | 58 |
| February | 28 | 24 | 26 | 259 | 6.6 | 87 | 1.2 | 29 | 59 |
How do the previous and next months compare?
Baseline: January (58/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| December | -1 | +0.7 °C | +0.1 °C | -1.7 | -49 mm | +0.2 h | -2 % | ±0 m/s | ±0 °C |
| February | +1 | -0.3 °C | +0.1 °C | -1.9 | -55.6 mm | +0.1 h | +0.8 % | -0.1 m/s | ±0 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Bali in January?
The average daily high is around 28 °C, with an average daily low of about 24 °C.
Can you swim in Bali in January?
The sea is about 29 °C (very warm).
Does it rain a lot in Bali in January?
The curated estimate is about 28 rainy days per month, not a directly measured long-term average. Total precipitation averages around 314 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Bali?
By the climate score, June, July, August and September are the strongest months for Bali. For a beach trip: June, July, August and September. January is not among them.