Climate averages 1991–2020
Split weather
in December.
A cool, wet month: the 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Split: daytime highs average 11.1°C and nights cool to about 5.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 173 mm of rain on roughly 13 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 01 min on an average December day.
The nearest other city in this atlas is Mostar (112 km away). In December its highs average 9.0°C, 2.1°C cooler than Split, with 191 mm of rain.
Among the 4 cities listed in Croatia, Split ranks 1st of 4 for the warmest December highs and 4th of 4 for the driest December (rainfall, lowest first). The mean December high of those 4 cities is 7.2°C; Split is 3.9°C warmer than that mean.
From December to January, average highs fall by 1.1°C to 10.0°C, and monthly rainfall falls from 173 mm to 121 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Split climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.0°C3.8°C | 3.8°C | 121 | 11.2 | 9.39 h |
| February | 10.9°C3.7°C | 3.7°C | 107 | 9.8 | 10.510 h |
| March | 13.8°C6.2°C | 6.2°C | 102 | 9.7 | 11.912 h |
| April | 17.2°C9.5°C | 9.5°C | 99 | 11.0 | 13.413 h |
| May | 21.6°C13.8°C | 13.8°C | 71 | 9.2 | 14.715 h |
| June | 25.9°C17.8°C | 17.8°C | 42 | 6.7 | 15.415 h |
| July | 28.8°C20.2°C | 20.2°C | 25 | 4.6 | 15.115 h |
| August | 29.2°C20.5°C | 20.5°C | 40 | 4.5 | 14.014 h |
| September | 24.2°C16.6°C | 16.6°C | 103 | 7.7 | 12.613 h |
| October | 19.8°C12.9°C | 12.9°C | 137 | 11.1 | 11.111 h |
| November | 15.1°C9.1°C | 9.1°C | 222 | 13.9 | 9.710 h |
| December, selected | 11.1°C5.1°C | 5.1°C | 173 | 12.6 | 9.09 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Mostar in DecemberBosnia and Herzegovina · 112 kmHigh 9.0°C · Low 1.0°C · 191 mm rain
- Zenica in DecemberBosnia and Herzegovina · 140 kmHigh 6.1°C · Low -1.4°C · 92 mm rain
- Bihać in DecemberBosnia and Herzegovina · 152 kmHigh 6.3°C · Low -0.2°C · 116 mm rain
- Banja Luka in DecemberBosnia and Herzegovina · 154 kmHigh 6.0°C · Low -1.3°C · 82 mm rain
- Ilidža in DecemberBosnia and Herzegovina · 154 kmHigh 5.6°C · Low -1.3°C · 110 mm rain
- Sarajevo in DecemberBosnia and Herzegovina · 159 kmHigh 5.5°C · Low -1.7°C · 110 mm rain
- Tuzla in DecemberBosnia and Herzegovina · 212 kmHigh 5.8°C · Low -2.0°C · 77 mm rain
- Pescara in DecemberItaly · 216 kmHigh 11.4°C · Low 4.9°C · 81 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Split) is explained once on the Split year overview and on the Sources, method and limits page.