Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
December verdict
Mount Slamet, Indonesia in December
Weather score58Good
Good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 6h per day, enough for a balanced month. Rainfall averages 554mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
31°C
Rain
554mm
Sun
6h
Sea
30°C
Weather score
58
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 554mm, so showers are a real planning factor.
Some sun
Sunshine averages 6h per day, enough for a balanced month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Mount Slamet, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December31°C average high
December is close to Mount Slamet's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
December554mm average rain
December is wetter than Mount Slamet's yearly average, so flexible plans matter more.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December6 hours average sun
December is below Mount Slamet's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJune to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December30°C average sea
December is part of a consistently warm sea-temperature pattern, so swimming comfort changes little through the year.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
December58 weather score
December 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.
Hotels near Mount Slamet, Indonesia
Marriott
Yogyakarta Marriott HotelYogyakarta, Indonesia
Moxy SoloSolo, Jawa Tengah, Indonesia
Grand Hotel Preanger, Bandung, a Tribute Portfolio HotelBandung, West Java, Indonesia
Sheraton Bandung Hotel & TowersBandung, West Java, Indonesia
Four Points by Sheraton BandungBandung, West Java, Indonesia
Moxy BandungBandung, West Java, Indonesia