Climate Chart of Athens, Greece

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

Monthly mean temperatures reach their lowest point in January, at 9.0 °C, and their highest in July, at 28.3 °C. The figures describe average conditions for each month, not daytime maximum temperatures; they cannot show how much temperatures vary from one day to another. Across the calendar-month means, the unweighted mean is 18.2 °C. It offers a compact summary of the monthly pattern, rather than a day-weighted annual average.

Rain

Mean daily rainfall is lowest in July, at 0.23 mm/day, and highest in December, at 2.55 mm/day. Those monthly daily means are not rainfall totals for the month, and the lower mean does not guarantee rain-free days or indicate how frequently rain occurs. The unweighted mean across the monthly daily-rainfall means is 1.28 mm/day. Use it as a broad summary, not as a daily forecast or a measure of rain frequency.

Sunshine

Mean daily sunshine is highest in July, at 13.07 hours/day, and lowest in December, at 6.81 hours/day. These averages can help with planning for daylight outdoor activities, but sunshine duration is not the same as day length and does not guarantee uninterrupted sunshine. The unweighted mean of the monthly daily-sunshine means is 10.06 hours/day, a summary across calendar months rather than a day-weighted annual average.

Snow

Mean daily snowfall reaches its highest monthly average in February, at 0.74 mm/day. The unweighted mean across the monthly daily-snowfall means is 0.13 mm/day. These averages record snowfall amounts; they do not establish how many days have snow, snow depth or snow cover, and they cannot indicate skiing conditions.

Best Travel Time Guide for Athens, Greece: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly averages, January is the relevant option: its monthly mean temperature is 9.0 °C. This is not a daytime high or a promise about conditions on a particular visit, so consider it a broad guide and allow for day-to-day variation. If lower average rainfall is your priority, July is the conditional choice, with mean daily rainfall of 0.23 mm/day; that figure does not guarantee dry days or describe rain frequency. For rain preparation, note that the highest monthly mean daily rainfall is in December, at 2.55 mm/day, and pack for changeable conditions rather than treating either average as a forecast.

For outdoor sightseeing planned around average sunshine, July has the highest mean daily sunshine duration, at 13.07 hours/day, while December has the lowest, at 6.81 hours/day. These figures can inform daylight planning but measure sunshine duration, not day length or guaranteed clear skies. Temperature, rainfall and sunshine point to different planning criteria, so the data do not establish one universally best time to visit. Snowfall is recorded at its highest monthly daily mean in February, at 0.74 mm/day. This average alone cannot tell visitors whether snow will fall during their trip or establish snow depth, cover or suitable skiing conditions.

Climate Data Overview for Athens, Greece

Explore the comprehensive climate data for Athens, Greece. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Athens
• Explore the climate in Greece