Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
January verdict
Indonesia in January
Weather score55Mixed
Mixed for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 5.5h per day, enough for a balanced month. Rainfall averages 309mm, so showers are a real planning factor.
January weather
Monthly averages
Temp
30°C
Rain
309mm
Sun
5.5h
Sea
25°C
Weather score
55
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 309mm, so showers are a real planning factor.
Some sun
Sunshine averages 5.5h per day, enough for a balanced month.
Swimmable
Sea temperatures average 25°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
January30°C average high
January is close to Indonesia's usual daytime heat, with little temperature swing across the year.
Warmest monthsJanuary to September
Daytime heat stays consistently warm through the year.
Rain
January309mm average rain
January is one of Indonesia's wettest months, so rain is likely to be a major planning factor.
Driest monthsJune to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
January5.5 hours average sun
January is one of Indonesia's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
January25°C average sea
January is close to Indonesia's usual sea temperature, with limited seasonal change in the water.
Warmest seaJanuary to July and September
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
Weather score
January55 weather score
January is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.