Climate averages 1991–2020
Bismil weather
in December.
A cool, moderately wet month: the 11th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Bismil: daytime highs average 10.0°C and nights cool to about 1.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 70 mm of rain on roughly 10 days, which makes December a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 36 min on an average December day.
The nearest other city in this atlas is Diyarbakır (40 km away). In December its highs average 8.8°C, 1.2°C cooler than Bismil, with 90 mm of rain.
Among the 138 cities listed in Turkey, Bismil ranks 62nd of 138 for the warmest December highs and 48th of 138 for the driest December (rainfall, lowest first). The mean December high of those 138 cities is 9.3°C; Bismil is 0.7°C warmer than that mean.
From December to January, average highs fall by 1.6°C to 8.3°C, and monthly rainfall falls from 70 mm to 69 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
Bismil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C-0.2°C | -0.2°C | 69 | 10.4 | 9.910 h |
| February | 10.5°C0.8°C | 0.8°C | 71 | 10.7 | 10.811 h |
| March | 15.5°C4.2°C | 4.2°C | 81 | 11.1 | 11.912 h |
| April | 20.7°C8.4°C | 8.4°C | 75 | 10.4 | 13.213 h |
| May | 26.5°C13.4°C | 13.4°C | 48 | 8.6 | 14.214 h |
| June | 33.8°C18.9°C | 18.9°C | 5.6 | 1.8 | 14.715 h |
| July | 38.9°C23.1°C | 23.1°C | 0.9 | 0.3 | 14.515 h |
| August | 38.9°C22.9°C | 22.9°C | 0.5 | 0.1 | 13.614 h |
| September | 33.6°C18.5°C | 18.5°C | 5.3 | 1.2 | 12.512 h |
| October | 25.9°C13.1°C | 13.1°C | 37 | 4.8 | 11.211 h |
| November | 16.4°C5.9°C | 5.9°C | 49 | 6.5 | 10.210 h |
| December, selected | 10.0°C1.5°C | 1.5°C | 70 | 9.6 | 9.610 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
- Diyarbakır in DecemberTurkey · 40 kmHigh 8.8°C · Low 0.6°C · 90 mm rain
- Batman in DecemberTurkey · 42 kmHigh 9.5°C · Low 1.7°C · 94 mm rain
- Mardin in DecemberTurkey · 60 kmHigh 8.1°C · Low -1.1°C · 65 mm rain
- Kızıltepe in DecemberTurkey · 73 kmHigh 11.5°C · Low 2.7°C · 63 mm rain
- Midyat in DecemberTurkey · 76 kmHigh 8.7°C · Low 0.9°C · 83 mm rain
- Al Qāmishlī in DecemberSyria · 102 kmHigh 12.0°C · Low 2.6°C · 68 mm rain
- Viranşehir in DecemberTurkey · 106 kmHigh 11.4°C · Low 3.3°C · 66 mm rain
- Siirt in DecemberTurkey · 113 kmHigh 7.4°C · Low -2.1°C · 108 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 Bismil) is explained once on the Bismil year overview and on the Sources, method and limits page.