Climate averages 1991–2020
Glyfáda weather
in December.
A cool, moderately wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Glyfáda: daytime highs average 13.8°C and nights cool to about 8.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 61 mm of rain on roughly 8 days, which makes December a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 36 min on an average December day.
The nearest other city in this atlas is Piraeus (13 km away). In December its highs average 13.3°C, 0.6°C cooler than Glyfáda, with 58 mm of rain.
Among the 11 cities listed in Greece, Glyfáda ranks 2nd of 11 for the warmest December highs and 5th of 11 for the driest December (rainfall, lowest first). The mean December high of those 11 cities is 12.4°C; Glyfáda is 1.4°C warmer than that mean.
From December to January, average highs fall by 1.3°C to 12.5°C, and monthly rainfall falls from 61 mm to 51 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
Glyfáda climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.5°C7.0°C | 7.0°C | 51 | 7.0 | 9.910 h |
| February | 13.4°C7.2°C | 7.2°C | 42 | 6.6 | 10.811 h |
| March | 16.1°C8.8°C | 8.8°C | 44 | 5.4 | 11.912 h |
| April | 20.0°C11.6°C | 11.6°C | 19 | 3.6 | 13.213 h |
| May | 25.3°C15.9°C | 15.9°C | 11 | 2.6 | 14.214 h |
| June | 30.3°C20.5°C | 20.5°C | 3.7 | 1.2 | 14.715 h |
| July | 32.7°C23.2°C | 23.2°C | 1.6 | 0.6 | 14.515 h |
| August | 32.6°C23.4°C | 23.4°C | 1.3 | 0.4 | 13.614 h |
| September | 28.4°C20.1°C | 20.1°C | 11 | 1.8 | 12.512 h |
| October | 23.4°C16.4°C | 16.4°C | 26 | 3.0 | 11.211 h |
| November | 18.2°C12.4°C | 12.4°C | 47 | 5.9 | 10.210 h |
| December, selected | 13.8°C8.8°C | 8.8°C | 61 | 7.5 | 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
- Piraeus in DecemberGreece · 13 kmHigh 13.3°C · Low 7.5°C · 58 mm rain
- Athens in DecemberGreece · 14 kmHigh 13.2°C · Low 7.3°C · 58 mm rain
- Khalándrion in DecemberGreece · 18 kmHigh 12.7°C · Low 6.8°C · 58 mm rain
- Acharnés in DecemberGreece · 25 kmHigh 13.0°C · Low 6.3°C · 58 mm rain
- Volos in DecemberGreece · 182 kmHigh 12.0°C · Low 6.9°C · 112 mm rain
- Pátra in DecemberGreece · 182 kmHigh 12.5°C · Low 6.2°C · 126 mm rain
- Lárisa in DecemberGreece · 228 kmHigh 10.7°C · Low 3.6°C · 83 mm rain
- Karşıyaka in DecemberTurkey · 301 kmHigh 12.9°C · Low 5.5°C · 101 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 Glyfáda) is explained once on the Glyfáda year overview and on the Sources, method and limits page.