Climate averages 1991–2020
Rosetta weather
in December.
A mild, fairly dry month: the 10th warmest and the 11th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Rosetta: daytime highs average 19.0°C and nights cool to about 13.5°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 36 mm of rain on roughly 6 days, which makes December a fairly dry month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 09 min on an average December day.
The nearest other city in this atlas is Idkū (15 km away). In December its highs average 19.5°C, about as warm as Rosetta, with 24 mm of rain.
Among the 107 cities listed in Egypt, Rosetta ranks joint 103rd of 107 for the warmest December highs and 106th of 107 for the driest December (rainfall, lowest first). The mean December high of those 107 cities is 20.9°C; Rosetta is 1.9°C cooler than that mean.
From December to January, average highs fall by 1.9°C to 17.2°C, and monthly rainfall rises from 36 mm to 44 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
Rosetta climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C11.5°C | 11.5°C | 44 | 7.5 | 10.410 h |
| February | 17.8°C11.4°C | 11.4°C | 27 | 5.2 | 11.111 h |
| March | 20.0°C12.7°C | 12.7°C | 15 | 2.6 | 12.012 h |
| April | 23.1°C14.7°C | 14.7°C | 3.6 | 1.1 | 12.913 h |
| May | 26.1°C17.8°C | 17.8°C | 0.9 | 0.2 | 13.714 h |
| June | 28.6°C21.2°C | 21.2°C | 0 | 0.0 | 14.214 h |
| July | 30.1°C23.4°C | 23.4°C | 0 | 0.0 | 14.014 h |
| August | 30.6°C24.0°C | 24.0°C | 0 | 0.0 | 13.313 h |
| September | 29.5°C22.7°C | 22.7°C | 0.5 | 0.1 | 12.412 h |
| October | 26.9°C20.3°C | 20.3°C | 7.3 | 1.4 | 11.411 h |
| November | 22.9°C16.9°C | 16.9°C | 24 | 3.7 | 10.611 h |
| December, selected | 19.0°C13.5°C | 13.5°C | 36 | 6.4 | 10.110 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
- Idkū in DecemberEgypt · 15 kmHigh 19.5°C · Low 12.7°C · 24 mm rain
- Fuwwah in DecemberEgypt · 25 kmHigh 19.9°C · Low 11.5°C · 17 mm rain
- Disūq in DecemberEgypt · 37 kmHigh 20.3°C · Low 10.8°C · 10 mm rain
- Kafr ad Dawwār in DecemberEgypt · 40 kmHigh 19.7°C · Low 12.0°C · 24 mm rain
- Damanhur in DecemberEgypt · 41 kmHigh 20.4°C · Low 10.5°C · 7.9 mm rain
- Alexandria in DecemberEgypt · 52 kmHigh 19.0°C · Low 13.4°C · 35 mm rain
- Ḩawsh ‘Īsá in DecemberEgypt · 55 kmHigh 20.2°C · Low 10.6°C · 12 mm rain
- Kafr ash Shaykh in DecemberEgypt · 59 kmHigh 20.6°C · Low 10.9°C · 5.6 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 Rosetta) is explained once on the Rosetta year overview and on the Sources, method and limits page.