Indonesia weather in January
Indonesia in January averages 28°C (82°F), 238 mm of rain and 5.5 hours of sun a day. It is one of the wetter months of the year here.
Of the twelve months in Indonesia, January is the wettest and the dullest.
- Average temp
- 28°C (82°F)
24–32°C · 76–89°F
- Rainfall
- 238 mm
A wet month
- Sunshine
- 5.5 h
hours per day
What is Indonesia like in January?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Expect frequent rain — this is a wet month.
Evening
Evenings stay warm.
What should I pack for Indonesia in January?
High-factor sun cream
With daytime highs around 32°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A proper waterproof, not a folding umbrella
238 mm in the month usually arrives as heavy bursts that an umbrella will not cover.
A dry bag for phone and documents
Worth it for one downpour caught between the taxi and the door.
January compared with December and February
January in Indonesia is about the same temperature as December and 26 mm wetter than it, which averages 28°C (83°F).
January in Indonesia is about the same temperature as February and 120 mm wetter than it, which averages 28°C (82°F).
Daylight in Indonesia in January
On 15 January the sun is up for 12 hours 15 minutes in Indonesia, rising about 06:09 and setting about 18:24 local time.
Travel guides for Indonesia
What to read before you book.
Indonesia weather by month
TemperatureRainfall
How January compares with the rest of the year
January is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 28°C / 82°F | 238 mm |
| February | 28°C / 82°F | 118 mm |
| March | 28°C / 83°F | 97 mm |
| April | 28°C / 83°F | 133 mm |
| May | 28°C / 83°F | 123 mm |
| June | 28°C / 82°F | 103 mm |
| July | 28°C / 82°F | 70 mm |
| August | 28°C / 82°F | 46 mm |
| September | 28°C / 83°F | 60 mm |
| October | 29°C / 84°F | 133 mm |
| November | 29°C / 83°F | 154 mm |
| December | 28°C / 83°F | 212 mm |
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Indonesia in January
January climate averages for Indonesia, 1991–2020.
Indonesia averages 28°C (82°F) in January, ranging from about 24°C (76°F) at night to 32°C (89°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Yes, a lot. January brings about 238 mm, which makes it one of the wetter months here — expect heavy bursts rather than all-day drizzle.
They are about the same. January averages 28°C (82°F) and February 28°C (82°F), so temperature alone will not decide between them.
January is about as warm as December, and 26 mm wetter.
It is outside the easiest window. The most comfortable stretch here is June to September; January sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 5.5 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what January is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 15 minutes of daylight in mid-January, against 12 hours 16 minutes in December and 11 hours 59 minutes in June.
On 15 January, sunrise is about 06:09 and sunset about 18:24 local time. Both shift across the month.
