Climate averages 1991–2020
Acharnés weather
in January.
A cool, moderately wet month: the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cool month in Acharnés: daytime highs average 11.7°C and nights cool to about 4.5°C. By daytime temperature it is the coolest month of the year.
Expect about 52 mm of rain on roughly 7 days, which makes January a moderately wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 51 min on an average January day.
The nearest other city in this atlas is Khalándrion (9 km away). In January its highs average 11.4°C, about as warm as Acharnés, with 52 mm of rain.
Among the 11 cities listed in Greece, Acharnés ranks 5th of 11 for the warmest January highs and joint 4th of 11 for the driest January (rainfall, lowest first). The mean January high of those 11 cities is 11.2°C; Acharnés is 0.4°C warmer than that mean.
From January to February, average highs rise by 1.0°C to 12.7°C, and monthly rainfall falls from 52 mm to 47 mm.
The annual picture
January 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
Acharnés climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 11.7°C4.5°C | 4.5°C | 52 | 7.3 | 9.810 h |
| February | 12.7°C4.7°C | 4.7°C | 47 | 7.2 | 10.811 h |
| March | 15.7°C6.6°C | 6.6°C | 49 | 6.4 | 11.912 h |
| April | 20.0°C9.7°C | 9.7°C | 29 | 5.4 | 13.213 h |
| May | 25.5°C14.5°C | 14.5°C | 23 | 4.9 | 14.214 h |
| June | 30.6°C18.9°C | 18.9°C | 11 | 2.5 | 14.815 h |
| July | 32.8°C21.2°C | 21.2°C | 6.4 | 1.3 | 14.515 h |
| August | 32.6°C21.2°C | 21.2°C | 4.4 | 1.1 | 13.614 h |
| September | 28.4°C18.0°C | 18.0°C | 15 | 2.5 | 12.512 h |
| October | 23.2°C14.3°C | 14.3°C | 27 | 3.8 | 11.211 h |
| November | 17.6°C10.2°C | 10.2°C | 45 | 6.6 | 10.210 h |
| December | 13.0°C6.3°C | 6.3°C | 58 | 7.8 | 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
January in nearby cities
- Khalándrion in JanuaryGreece · 9 kmHigh 11.4°C · Low 4.9°C · 52 mm rain
- Athens in JanuaryGreece · 11 kmHigh 11.9°C · Low 5.4°C · 52 mm rain
- Piraeus in JanuaryGreece · 17 kmHigh 12.0°C · Low 5.7°C · 52 mm rain
- Glyfáda in JanuaryGreece · 25 kmHigh 12.5°C · Low 7.0°C · 51 mm rain
- Volos in JanuaryGreece · 158 kmHigh 10.8°C · Low 5.2°C · 101 mm rain
- Pátra in JanuaryGreece · 176 kmHigh 11.3°C · Low 4.5°C · 118 mm rain
- Lárisa in JanuaryGreece · 206 kmHigh 9.7°C · Low 2.1°C · 73 mm rain
- Ayvalık in JanuaryTurkey · 291 kmHigh 10.8°C · Low 7.0°C · 137 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 Acharnés) is explained once on the Acharnés year overview and on the Sources, method and limits page.
Athens, Piraeus and Khalándrion lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.