Cool
Average highs are around -12°C, so pack for cooler days.
December verdict
Mongolia in December
Weather score40Mixed
Mixed for holiday weather
Average highs are around -12°C, so pack for cooler days. Sunshine averages 5.1h per day, enough for a balanced month. Rainfall averages 4mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
-12°C
Rain
4mm
Sun
5.1h
Sea
0°C
Weather score
40
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 4mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5.1h per day, enough for a balanced month.
Cool sea
Sea temperatures average 0°C, so the water can feel cool.
Map
Weather map
Compare Mongolia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December-12°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
December4mm average rain
December is one of Mongolia's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to May and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December5.1 hours average sun
December is one of Mongolia's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December0°C average sea
December is close to Mongolia's usual sea temperature, with limited seasonal change in the water.
Warmest seaAll year
Sea temperatures stay warm enough for easy swimming through the year.
Weather score
December40 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 monthsMarch to August
These months have the strongest weather score in the monthly averages.