Sofia is at its most pleasant in early September. For walking, go from late September to October. It is rarely warm enough for sunbathing.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
Sofia never quite rates Good for sun. It comes closest in late July, at 44, mostly because it is too cool. The weakest stretch is from October to mid May, when it drops to 0, mostly because it is too cool. The clearest skies come in August, when the sky is typically 43% covered at midday (partly cloudy).
For being outside, go in early September. It peaks in early September, at 57. That is a short window, about ten days a year. Avoid mid November to early March for this: it falls to 0, mostly because it is too cold.
The walking season here runs from late September to October, with a second spell from late April to May. It peaks in mid October, at 58. The weakest stretch is from December to January, when it drops to 4, mostly because it is too cold.
The year, measured
The average temperature in Sofia over the whole year is 9°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about -4°C. Sofia has no sharply defined rainy season: the chance of rain on a given day runs from 8% in August, the driest month, to 18% in May, the wettest. Winds in Sofia are highest in January, averaging 6.3 m/s (23 km/h), and lightest in August, at 3.9 m/s (14 km/h). The prevailing wind is from the NW. The clearest skies in Sofia come in August, when the sky is typically 41% covered; December is the cloudiest month, at 69%.
Month by month Sofia climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | -1°C | -4°C | -8°C | 15% | 69% | 6.3 m/s | 0 | 0 | 6 |
| February | 3°C | -2°C | -4°C | 12% | 64% | 6.0 m/s | 1 | 0 | 17 |
| March | 6°C | -0°C | -1°C | 16% | 65% | 5.6 m/s | 5 | 0 | 30 |
| April | 11°C | 5°C | 6°C | 14% | 62% | 5.0 m/s | 26 | 1 | 48 |
| May | 14°C | 8°C | 10°C | 18% | 66% | 4.8 m/s | 41 | 4 | 57 |
| June | 20°C | 13°C | 17°C | 16% | 56% | 4.1 m/s | 49 | 29 | 44 |
| July | 23°C | 15°C | 20°C | 9% | 43% | 4.0 m/s | 47 | 41 | 40 |
| August | 22°C | 14°C | 20°C | 8% | 41% | 3.9 m/s | 49 | 42 | 40 |
| September | 18°C | 10°C | 14°C | 9% | 50% | 4.3 m/s | 51 | 15 | 53 |
| October | 13°C | 6°C | 8°C | 10% | 51% | 4.7 m/s | 31 | 1 | 57 |
| November | 6°C | 2°C | 0°C | 13% | 68% | 5.6 m/s | 5 | 0 | 31 |
| December | 1°C | -1°C | -5°C | 13% | 69% | 6.0 m/s | 0 | 0 | 8 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Sofia weather by season
Year round, Sofia has days of about -1°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from -4°C to 15°C through the year, and the average temperature over the year is 9°C around the clock. Rain is most likely around May and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Sofia weather in winterDecember to February
Winter in Sofia has typical daily highs of about 1°C and lows of about -2°C, with a 13% chance of rain on a given day.
Sofia weather in springMarch to May
Spring in Sofia has typical daily highs of about 10°C and lows of about 4°C, with a 16% chance of rain on a given day.
Sofia weather in summerJune to August
Summer in Sofia has typical daily highs of about 22°C and lows of about 14°C, with a 11% chance of rain on a given day.
Sofia weather in autumnSeptember to November
Autumn in Sofia has typical daily highs of about 12°C and lows of about 6°C, with a 11% chance of rain on a given day.
When is the rainy season in Sofia?
Sofia has no sharply defined rainy season: the chance of rain on a given day runs from 8% in August, the driest month, to 18% in May, the wettest.
What time of year is Sofia windiest?
Winds in Sofia are highest in January, averaging 6.3 m/s (23 km/h), and lightest in August, at 3.9 m/s (14 km/h). The prevailing wind is from the NW.
What is the average temperature in Sofia year round?
The average temperature in Sofia over the whole year is 9°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about -4°C.
Where to go instead in early January, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.