Climate averages 1991–2020
Giresun weather
in December.
A cool, wet month: the 10th warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Giresun: daytime highs average 11.3°C and nights cool to about 5.0°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 131 mm of rain on roughly 15 days, which makes December a wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 18 min on an average December day.
The nearest other city in this atlas is Ordu (42 km away). In December its highs average 10.7°C, 0.5°C cooler than Giresun, with 116 mm of rain.
Among the 138 cities listed in Turkey, Giresun ranks joint 37th of 138 for the warmest December highs and 126th of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; Giresun is 2.0°C warmer than that mean.
From December to January, average highs fall by 2.2°C to 9.0°C, and monthly rainfall stays at 131 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
Giresun climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.0°C2.8°C | 2.8°C | 131 | 15.8 | 9.610 h |
| February | 9.5°C2.4°C | 2.4°C | 99 | 13.7 | 10.611 h |
| March | 12.3°C4.6°C | 4.6°C | 119 | 15.6 | 11.912 h |
| April | 16.3°C8.0°C | 8.0°C | 106 | 14.1 | 13.313 h |
| May | 19.8°C12.4°C | 12.4°C | 110 | 13.8 | 14.414 h |
| June | 22.6°C16.6°C | 16.6°C | 99 | 12.4 | 15.115 h |
| July | 24.6°C19.5°C | 19.5°C | 82 | 12.1 | 14.815 h |
| August | 25.0°C20.2°C | 20.2°C | 102 | 13.7 | 13.814 h |
| September | 22.4°C17.2°C | 17.2°C | 176 | 14.6 | 12.513 h |
| October | 19.6°C13.7°C | 13.7°C | 213 | 16.1 | 11.211 h |
| November | 15.4°C8.8°C | 8.8°C | 149 | 13.0 | 9.910 h |
| December, selected | 11.3°C5.0°C | 5.0°C | 131 | 14.6 | 9.39 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
- Ordu in DecemberTurkey · 42 kmHigh 10.7°C · Low 4.6°C · 116 mm rain
- Fatsa in DecemberTurkey · 76 kmHigh 11.0°C · Low 4.9°C · 109 mm rain
- Ünye in DecemberTurkey · 95 kmHigh 11.1°C · Low 5.6°C · 99 mm rain
- Erzincan in DecemberTurkey · 161 kmHigh 1.6°C · Low -6.3°C · 57 mm precipitation
- Tokat in DecemberTurkey · 169 kmHigh 7.7°C · Low -1.5°C · 67 mm rain
- Sivas in DecemberTurkey · 174 kmHigh 3.6°C · Low -4.8°C · 44 mm rain
- Samsun in DecemberTurkey · 177 kmHigh 10.5°C · Low 4.3°C · 92 mm rain
- Rize in DecemberTurkey · 180 kmHigh 10.4°C · Low 3.9°C · 132 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 Giresun) is explained once on the Giresun year overview and on the Sources, method and limits page.