Kostenets Weather in September

Kostenets in September averages 21°C (70°F) during the day and 10°C (50°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Kostenets in September

Typically around 6 days of rainfall are expected, averaging 77 mm (3 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.

Temperature in Kostenets in September

Kostenets in September has perfect weather. Days reach 21°C (70°F) and nights cool to 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Kostenets in September

The month enjoys around 225 hours of sunshine, creating mostly sunny days with good weather conditions.

If your ideal day consists of dry skies and pleasant temperatures, August and September typically offer the best circumstances for Kostenets.

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For a detailed overview over the year and the best time to visit Bulgaria, check out our Kostenets's climate page.

Kostenets Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 19%  

Precipitation 77 mm (3 in)  

Rainy days 6 days  

Humidity 65% *  

Sunshine 225 hours *  

Percentage Sunshine *  

* Data from: Sofia, Bulgaria (70 KM, 43 Miles).

What to Wear in Kostenets in September

For Kostenets in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Kostenets in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Bulgaria, check out our Kostenets's climate page.

More climate data for Kostenets

Temperature Rainfall Sunshine Humidity

See the full Kostenets climate overview or explore weather in Bulgaria.