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September Weather in Letnitsa, Bulgaria

Last updated: August 22, 2025

In September, the average temperature in Letnitsa, Bulgaria sits comfortably at 19°C (67°F). While the mercury can dip as low as 0°C (33°F), it can also soar to a sizzling 36°C (96°F). Expect light rain with an average precipitation of 21 mm (0.8 in) spread over approximately 3 days. With an overall average humidity of 59%, the climate offers a refreshing balance that is perfect for exploring the beauty of this region.

September Temperature in Letnitsa

In September in Letnitsa, the average temperature is 19°C (67°F). The maximum can reach 36°C (96°F), while the minimum can dip as low as 0°C (33°F). This makes Letnitsa a destination where you should be prepared for both warm days and chilly evenings.

September Weather in Letnitsa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Letnitsa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Letnitsa, September typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (96°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec333944536269737467554537
Data source: Temperature data for Letnitsa generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Letnitsa

In Letnitsa in September, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

September Precipitation Trends in Letnitsa

The chart displays monthly precipitation patterns in Letnitsa, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Letnitsa, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec49558147861241063121705365
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Letnitsa

In Letnitsa in September humidity is 59%. With an average temperature of 19°C (67°F), this humidity feels like a gentle embrace that can be refreshing during sightseeing but may feel a bit sticky if you're on the move for extended periods.

September Average Humidity in Letnitsa

This chart illustrates the average monthly humidity levels in Letnitsa, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Letnitsa is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%85%83%71%73%67%68%50%59%79%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Letnitsa

In Letnitsa in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Letnitsa.

Maximum UV Index Levels in Letnitsa for September

The chart shows the monthly maximum UV Index (UVI) for Letnitsa in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Letnitsa typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2467810997532
Data source: Letnitsa September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Letnitsa Compares to Other Months

Weather in Letnitsa varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Letnitsa, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Letnitsa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)49 mm (1.9 inches)89%low
February Weather4°C (39°F)55 mm (2.2 inches)85%moderate
March Weather7°C (44°F)81 mm (3.2 inches)83%high
April Weather12°C (53°F)47 mm (1.8 inches)71%high
May Weather17°C (63°F)86 mm (3.4 inches)73%very high
June Weather21°C (69°F)124 mm (4.9 inches)67%very high
July Weather23°C (73°F)106 mm (4.2 inches)68%very high
August Weather23°C (75°F)31 mm (1.2 inches)50%very high
September Weather19°C (67°F)21 mm (0.8 inches)59%high
October Weather13°C (55°F)69 mm (2.7 inches)79%moderate
November Weather7°C (46°F)53 mm (2.1 inches)87%moderate
December Weather3°C (38°F)64 mm (2.5 inches)89%low

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