Climate and monthly weather forecastKostur, Bulgaria
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Kostur, Bulgaria, with temperature in the range of an average low of -0.8°C (30.6°F) and an average high of 6.1°C (43°F). The coldest time of the year is January, with temperatures averaging a high of 6.1°C (43°F) and a low of -0.8°C (30.6°F). Weather in January »Weather in February
February, the last month of the winter in Kostur, is another chilly month, with temperature in the range of an average low of 1.5°C (34.7°F) and an average high of 8.7°C (47.7°F). During February, Kostur records an average high-temperature of a still frosty 8.7°C (47.7°F), marking a slight divergence from January's 6.1°C (43°F). Weather in February »Weather in March
The first month of the spring, March, is a mild month in Kostur, Bulgaria, with an average temperature ranging between max 13°C (55.4°F) and min 3.8°C (38.8°F). March introduces a marginal temperature uplift, with average high-temperatures adjusting from February's chilly 8.7°C (47.7°F) to a refreshing 13°C (55.4°F). Weather in March »Weather in April
April in Kostur, Bulgaria, is a comfortable spring month, with an average temperature ranging between min 6.3°C (43.3°F) and max 17.8°C (64°F). The onset of April marks a slight increase in the average high-temperature, moving from a mild 13°C (55.4°F) in March to a comfortable 17.8°C (64°F). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Kostur, Bulgaria, with an average temperature ranging between min 10.4°C (50.7°F) and max 23.2°C (73.8°F). May witnesses an increase in the average high-temperature, moving from an enjoyable 17.8°C (64°F) in April to a moderately hot 23.2°C (73.8°F). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Kostur, Bulgaria, with an average temperature varying between 14.8°C (58.6°F) and 27.5°C (81.5°F). June's onset brings a minor rise in the average high-temperature, moving from 23.2°C (73.8°F) in May to a still warm 27.5°C (81.5°F). Weather in June »Weather in July
July in Kostur, Bulgaria, is a hot summer month, with an average temperature fluctuating between 30.9°C (87.6°F) and 17.4°C (63.3°F). Kostur observes a slight ascent in average high-temperatures during July, adjusting from a warm 27.5°C (81.5°F) in June to a tropical 30.9°C (87.6°F). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Kostur, Bulgaria, with temperature in the range of an average low of 18°C (64.4°F) and an average high of 31.8°C (89.2°F). August temperatures tend to peak at an average high of 31.8°C (89.2°F) and dip to a low of 18°C (64.4°F). August's mean heat index is appraised at a hot 34°C (93.2°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Kostur, Bulgaria, with an average temperature fluctuating between 26.4°C (79.5°F) and 14.8°C (58.6°F). As September begins, there is a decrease in the average high-temperature, falling from a tropical 31.8°C (89.2°F) in August to a moderately hot 26.4°C (79.5°F). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Kostur, Bulgaria, with an average temperature fluctuating between 10.3°C (50.5°F) and 18.9°C (66°F). October comes with a drop in the average high-temperature, falling from September's moderately hot 26.4°C (79.5°F) to a comfortable 18.9°C (66°F). Weather in October »Weather in November
The last month of the autumn, November, is another mild month in Kostur, Bulgaria, with temperature in the range of an average low of 6.9°C (44.4°F) and an average high of 14.3°C (57.7°F). With the onset of November, the average high-temperature subtly recedes from October's comfortable 18.9°C (66°F) to a moderate 14.3°C (57.7°F). Weather in November »Weather in December
December, the first month of the winter in Kostur, is also a frosty month, with temperature in the range of an average low of 1.6°C (34.9°F) and an average high of 8.2°C (46.8°F). December suggests a modest reduction in the average high-temperature, shifting from a mild 14.3°C (57.7°F) in November to a chilly 8.2°C (46.8°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Kostur, Bulgaria
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (6.1°C).
The month with the highest average low temperature is August (18°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).
Average pressure
Kostur, Bulgaria
- Average pressure in January:
1018.4mbar - Average pressure in February:
1017.1mbar - Average pressure in March:
1016mbar - Average pressure in April:
1015mbar - Average pressure in May:
1013.4mbar - Average pressure in June:
1012.7mbar
- Average pressure in July:
1012.3mbar - Average pressure in August:
1014mbar - Average pressure in September:
1015.7mbar - Average pressure in October:
1018.6mbar - Average pressure in November:
1019mbar - Average pressure in December:
1019.8mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is July (1012.3mbar).
Average wind speed
Kostur, Bulgaria
- Average wind speed in January:
10.4km/h - Average wind speed in February:
11.9km/h - Average wind speed in March:
11.6km/h - Average wind speed in April:
10.3km/h - Average wind speed in May:
9.9km/h - Average wind speed in June:
9.4km/h
- Average wind speed in July:
9.8km/h - Average wind speed in August:
11.3km/h - Average wind speed in September:
10.3km/h - Average wind speed in October:
9.5km/h - Average wind speed in November:
9.7km/h - Average wind speed in December:
10.5km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is June (9.4km/h).
Average humidity
Kostur, Bulgaria
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (51%).
Average rainfall
Kostur, Bulgaria
The wettest month (with the highest rainfall) is June (47mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days
Kostur, Bulgaria
- Average rainfall days in January:
8.2 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
11 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
8.3 days - Average rainfall days in August:
5.8 days - Average rainfall days in September:
7.8 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (5.8 days).
Average snowfall
Kostur, Bulgaria
The month with the highest snowfall is January (55mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Kostur, Bulgaria
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.4 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Kostur, Bulgaria
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
5h and 6min - Average sunshine in March:
7h and 6min - Average sunshine in April:
9h and 36min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 48min - Average sunshine in September:
10h and 6min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 24min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days
Kostur, Bulgaria
- Average sunshine days in January:
19.8 days - Average sunshine days in February:
17.4 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
16.7 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
15.9 days
- Average sunshine days in July:
20.8 days - Average sunshine days in August:
24.1 days - Average sunshine days in September:
21.3 days - Average sunshine days in October:
21.2 days - Average sunshine days in November:
21 days - Average sunshine days in December:
20 days
The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is June (15.9 days).
Average UV index
Kostur, Bulgaria
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Kostur, Bulgaria
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility
Kostur, Bulgaria
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).





