Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Mount Slamet, Indonesia in September
Weather score72Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 6.8h per day, enough for a balanced month. Rainfall averages 134mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
134mm
Sun
6.8h
Sea
29°C
Weather score
72
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 134mm, so some wet days are possible.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°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
September29°C average high
September 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
September134mm average rain
September is one of Mount Slamet's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.8 hours average sun
September is brighter than Mount Slamet's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to September
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September29°C average sea
September 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
September72 weather score
September scores above Mount Slamet's yearly average, so the overall weather mix is stronger than most months.
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
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Four Points by Sheraton BandungBandung, West Java, Indonesia
Moxy BandungBandung, West Java, Indonesia