Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
December verdict
Cepu, Indonesia in December
Weather score56Good
Good for holiday weather
Average highs sit around 31°C, giving warm days by monthly-average standards. Sunshine averages 6.4h per day, enough for a balanced month. Rainfall averages 260mm, so showers are a real planning factor.
December weather
Monthly averages
Temp
31°C
Rain
260mm
Sun
6.4h
Sea
29°C
Weather score
56
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Wet
Rainfall averages 260mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.4h 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 Cepu, Indonesia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December31°C average high
December is close to Cepu's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
December260mm average rain
December is one of Cepu'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
December6.4 hours average sun
December is below Cepu's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJuly to October
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December29°C average sea
December sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJanuary to July and October to December
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
December56 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.
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