Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
September verdict
Bromo-Tengger-Semeru National Park, Indonesia in September
Weather score67Good
Good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 7.3h per day, enough for a balanced month. Rainfall averages 98mm, so some wet days are possible.
September weather
Monthly averages
Temp
29°C
Rain
98mm
Sun
7.3h
Sea
25°C
Weather score
67
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 98mm, so some wet days are possible.
Some sun
Sunshine averages 7.3h 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 Bromo-Tengger-Semeru National Park, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September29°C average high
September is close to Bromo-Tengger-Semeru National Park's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
September98mm average rain
September sits on the drier side of Bromo-Tengger-Semeru National Park's year, which helps with sightseeing and transfers.
Driest monthsJune to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.3 hours average sun
September is one of Bromo-Tengger-Semeru National Park's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJune to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September25°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to May and November to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
September67 weather score
September is one of Bromo-Tengger-Semeru National Park's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to October
These months have the strongest weather score in the monthly averages.
Hotels near Bromo-Tengger-Semeru National Park, Indonesia
Marriott
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