May weather forecastKostur, Bulgaria

May

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).

Temperature

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). Kostur's nights in May are distinguished by a pronounced temperature shift from the day, with an average low of 10.4°C (50.7°F).

Humidity

In Kostur, the average relative humidity in May is 71%.

Rainfall

In Kostur, in May, during 13.4 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Kostur, during the entire year, the rain falls for 111.8 days and collects up to 370mm (14.57") of precipitation.

Snowfall

April through October are months without snowfall in Kostur.

Daylight

The average length of the day in May is 14h and 34min.
On the first day of May in Kostur, sunrise is at 06:10 and sunset at 20:13. On the last day of the month, sunrise is at 05:42 and sunset at 20:43 EEST.

Sunshine

The average sunshine in May is 10.6h.

UV index

The average daily maximum UV index in May in Kostur is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in May translates into this advice:
Prioritize safety - Recommendations to avert sunburn are shared. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Updated: Feb 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During May, Kostur experiences an average high-temperature of 23.2°C (73.8°F) and a low-temperature of 10.4°C (50.7°F).

In May, the average relative humidity in Kostur is 71%.

In May, the rain falls for 13.4 days. Throughout May, 35mm (1.38") of precipitation is accumulated.

April through October are months without snowfall.

In May, the average day length in Kostur is 14h and 34min.

On the first day of May in Kostur, Bulgaria, sunrise is at 06:10 and sunset at 20:13. On the last day of the month, sunrise is at 05:42 and sunset at 20:43 EEST.

The average sunshine duration in May is 10.6h.

In Kostur, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

17.8°C

23.2°C

27.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.4km/h

11.1km/h

10.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

16.7

16.3

15.9

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Kostur, Bulgaria

Average high temperature in May: 23.2°C

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).

Average low temperature in May: 10.4°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 in May
Kostur, Bulgaria

Average pressure in May: 1013.4mbar

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 in May
Kostur, Bulgaria

Average wind speed in May: 9.9km/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 in May
Kostur, Bulgaria

Average humidity in May: 71%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (51%).

Average rainfall in May
Kostur, Bulgaria

Average rainfall in May: 35mm

The wettest month (with the highest rainfall) is June (47mm).
The driest month (with the least rainfall) is August (17mm).

Average rainfall days in May
Kostur, Bulgaria

Average rainfall days in May: 13.4 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 in May
Kostur, Bulgaria

Average snowfall in May: 0mm

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 in May
Kostur, Bulgaria

Average snowfall days in May: 0 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 in May /
Average sunshine in May
Kostur, Bulgaria

Average daylight in May: 14h and 36min

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 May: 10h and 36min

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).