Sparta, Greece Climate
The warmest month is July, with an average high of 33°C; the coldest is January, with an average low of 3°C. A normal year brings 582 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 24
- Normal high
- 26°C
- Normal low
- 15°C
- Reanalysis high
- 35°Cin 2001
- Reanalysis low
- 11°Cin 1997
- Chance of a wet day
- 17%
- Daylight
- 12 h 04 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 10°C | 3°C | 18°C (2007) | -6°C (2002) | 90 mm | 12.4 |
| February | 11°C | 3°C | 21°C (2016) | -7°C (2004) | 76 mm | 11.3 |
| March | 14°C | 5°C | 25°C (2001) | -4°C (2011) | 56 mm | 9.3 |
| April | 18°C | 7°C | 30°C (2016) | -3°C (1997) | 33 mm | 6.0 |
| May | 23°C | 12°C | 37°C (2020) | 4°C (2000) | 22 mm | 6.2 |
| June | 30°C | 17°C | 43°C (2007) | 9°C (2001) | 18 mm | 3.0 |
| July | 33°C | 19°C | 42°C (2012) | 13°C (1992) | 9 mm | 3.1 |
| August | 33°C | 20°C | 41°C (1994) | 13°C (1995) | 9 mm | 3.1 |
| September | 28°C | 16°C | 38°C (2007) | 8°C (1992) | 30 mm | 6.0 |
| October | 22°C | 12°C | 36°C (1991) | 5°C (2011) | 50 mm | 6.2 |
| November | 16°C | 8°C | 28°C (2008) | -3°C (2005) | 87 mm | 12.0 |
| December | 12°C | 5°C | 20°C (2010) | -5°C (2010) | 102 mm | 12.4 |
| Year | 21°C | 11°C | 582 mm | 91 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
582 mm in a normal year, most in December.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Sparta.
Days with a mean dew point of 18°C or more are rare here in every month.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 4°C | 86% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | 4°C | 85% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 5°C | 81% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 7°C | 74% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 10°C | 65% | 93% | 7% | 0% | 0% | 0% | 0% |
| June | 11°C | 53% | 77% | 22% | 1% | 0% | 0% | 0% |
| July | 12°C | 46% | 64% | 32% | 4% | 0% | 0% | 0% |
| August | 13°C | 48% | 52% | 41% | 7% | 0% | 0% | 0% |
| September | 12°C | 61% | 58% | 34% | 8% | 0% | 0% | 0% |
| October | 11°C | 72% | 74% | 22% | 4% | 0% | 0% | 0% |
| November | 9°C | 82% | 92% | 8% | 0% | 0% | 0% | 0% |
| December | 6°C | 87% | 99% | 1% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is August, with the sky 22 percent covered on average; the cloudiest is February, at 68 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is February, averaging 15.5 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 17, with 14 h 43 min of daylight; the shortest is Dec 20, with 9 h 36 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Sparta in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.