Climate and monthly weather forecastVarna, Bulgaria

Climate and monthly weather forecast
The climate of Varna
Varna, Bulgaria resides in a humid subtropical climate zone. According to the Köppen climate classification, this city falls under Cfa - a region with no dry season and a hot summer. Throughout the year, fluctuations in weather patterns influence the overall climate and local temperature variations.Analyzing the climate data, a noticeable oscillation in temperature becomes evident. During the warmer months - from June to August, the average high temperature hovers from 25.1°C to 27.9°C while the low values range from 15°C to 17.2°C. As winter sets in, during December and January, average high temperatures plummet to between 6.2°C and 8.1°C with corresponding lows of -1.7°C and 0.5°C, respectively. This illustrates starkly contrasting weather during the year.
Similarly, differences in relative humidity and rainfall are visible. Humidity levels are slightly higher during the colder months, with values above 75% from October to January. Rainfall on the other hand peaks around November with 56mm, spread over approximately nine days. Despite this, rainfall nonetheless persists year-round with the lowest measurements not falling substantially below 30mm.
Unique in its weather pattern is the month of July with an average maximum temperature of 27.8°C, a minimum relative humidity of 69.7%, and only 4.7 days of rainfall. This suggests a break in the otherwise continuous rainy cycle, making July the driest month.
The best time to visit Varna
Taking into consideration the city's various climatological parameters, the best time for a pleasant visit to Varna would be the moderately warm period from May to early June. During this period, days are long with 14.7 hours to 15.3 hours of daylight. Average high temperatures are comfortable, ranging from 14.8°C to 25.1°C. Finally, a UV index from 5 to 8 encourages outdoor activities, while average sea temperatures from 9.8°C to 21.5°C begin to beckon swimmers.The worst time to visit Varna
Visitors might want to avoid Varna during the cold and grey months of December and January. Not only do temperatures drop to an average high of between 6.2°C and 8.1°C, but the daylight also shrinks to a mere 9 hours. The relative humidity peaks during this time at 79%, a potential discomfort to those unaccustomed to damp and chilly conditions.Spring weather in Varna
From March to May, Varna witnesses a gradual increase in temperature. March sees highs of around 10.3°C and lows of 1.7°C, intensifying to May's comfortable 20.4°C highs and 10.8°C lows. Relative humidity hovers approximately between 73% and 75%, while rainfall ranges from 44mm to 44mm across these months.Summer weather in Varna
From June to August, Varna basks under the summer sun. Average high temperatures sit consistently from 25.1°C to 27.9°C, while lows range from 15°C to 17.2°C. These months do not disappoint beachgoers with sea temperatures reaching a warm 24.7°C to 24.8°C.Autumn weather in Varna
In autumn, from September to November, temperatures in Varna decrease gradually. September maintains warmth with 23.9°C highs and 13.5°C lows, which by November transition to highs and lows of 12.8°C and 4.6°C respectively. November also sits as the wettest month with 56mm of rainfall distributed across nine days.Winter weather in Varna
During winter months - from December to February, the city of Varna experiences low temperatures, shorter days, and increased relative humidity. The highs drop to between 6.2°C and 8.1°C and lows to between -1.7°C and 1.7°C. Sunshine duration decreases as well, with only 2.6 hours to 3.7 hours of sunshine recorded per day.Weather in January
The beginning of the new year in Varna, Bulgaria is greeted with cold and often humid weather. Not only does the winter chill set in, but the rainy season also surges, making January one of the wetter months. A coating of frost dusks the city when night temperatures stoop to a chilly -1.7°C while daytime peak temperatures barely make it above 6.2°C. Weather in January »Weather in February
Following January's low temperatures, February brings a slight reprieve with a measurable increment in warmth. The chilly conditions persist but an increase in the average high temperature to 7.4°C moves the weather to a more manageable state. Weather in February »Weather in March
March traditionally represents the arrival of spring, and in Varna, the weather starts to transition from the biting cold of winter. The cool climate of February gives way to the relatively warmer days of March, with peak temperatures climbing to a mild 10.3°C. Weather in March »Weather in April
April in Varna is characterized by an accelerated transition towards warmer weather. It is a month of change where winter slowly recedes and summer begins its subtle approach. Daytime temperatures ascend to a modest 14.8°C signalling the advent of comfortable outdoor weather. Weather in April »Weather in May
May sees the completion of the transition from the cold Bulgarian winter to the pleasant beginnings of summer. The city is doused in sunlight for approximately 14.7 hours a day and the average sea temperature escalates to a warm 15.8°C. Weather in May »Weather in June
June embraces summer in Varna, bringing warmer days and ample sunshine. With the mercury rising to a warm 25.1°C during the day, outdoor exploration becomes a joyful experience. It is also during June that the sea reaches a warm 21.5°C, making sea activities irresistible. Weather in June »Weather in July
July represents the heart of summer and is the warmest month of the year in Varna. Daytime temperatures often soar to a balmy 27.8°C while the Bulgarian Sea reaches a delightful 24.7°C. The city is bathed in sunlight and the balmy sea allows for enjoyable swimming and beach activities. Weather in July »Weather in August
August continues the summer trend with temperature highs matching that of July, soaring to an average of 27.9°C. The brilliant sunshine and warm sea conditions persist, promising uninterrupted beach and outdoor activities. Weather in August »Weather in September
As September rolls in, the summer gradually starts to wind down, paving the way for the crisp fall weather. The city sees an average drop in daytime temperatures to a comfortable 23.9°C. The sea remains warm, and while the sunny spells are shorter, they remain strong enough for beach activities. Weather in September »Weather in October
October in Varna introduces autumn in its full array of colours. The weather takes a turn with temperatures starting to fall, signifying the ending of the warm season. Daytime temperatures cool down to a moderate 18.6°C, making it a favourite time for nature walks and sightseeing. Weather in October »Weather in November
November witnesses a transition from the mildness of autumn towards the chill of winter. The daylight hours see a further reduction and a fresh chill descends by night. Daytime temperatures drop to the colder spectrum at 12.8°C. Weather in November »Weather in December
December in Varna ushers in the winter chill, with the mercury often plummeting to the freezing point during night hours. As the coldest month of the year, outdoor activities are limited with daylight spanning only around 9 hours. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Varna, Bulgaria
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (6.2°C).
The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-1.7°C).
Average humidity
Varna, Bulgaria
- Average humidity in January:
77.9% - Average humidity in February:
75% - Average humidity in March:
73.3% - Average humidity in April:
73.7% - Average humidity in May:
74.8% - Average humidity in June:
72.5%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (69.4%).
Average rainfall
Varna, Bulgaria
- Average rainfall in January:
31.8mm - Average rainfall in February:
29.9mm - Average rainfall in March:
43.7mm - Average rainfall in April:
57mm - Average rainfall in May:
43.9mm - Average rainfall in June:
57.6mm
- Average rainfall in July:
50.7mm - Average rainfall in August:
41.4mm - Average rainfall in September:
44.1mm - Average rainfall in October:
42.6mm - Average rainfall in November:
55.6mm - Average rainfall in December:
42mm
The wettest month (with the highest rainfall) is June (57.6mm).
The driest month (with the least rainfall) is February (29.9mm).
Average rainfall days
Varna, Bulgaria
- Average rainfall days in January:
13.5 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
9.3 days - Average rainfall days in May:
6.9 days - Average rainfall days in June:
6.2 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
3.3 days - Average rainfall days in September:
6.5 days - Average rainfall days in October:
9.6 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is January (13.5 days).
The month with the least rainy days is August (3.3 days).
Average sea temperature
Varna, Bulgaria
The best month for swimming (with the highest average sea temperature) is August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (7.3°C).
Average daylight / Average sunshine
Varna, Bulgaria
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
2h and 54min - Average sunshine in February:
3h and 42min - Average sunshine in March:
4h and 36min - Average sunshine in April:
6h and 0min - Average sunshine in May:
8h and 0min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
7h and 18min - Average sunshine in October:
5h and 24min - Average sunshine in November:
3h and 30min - Average sunshine in December:
2h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average UV index
Varna, Bulgaria
The month with the highest UV index is July (UV index 9).
The months with the lowest UV index are January and December (UV index 1).





