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September Weather in Slano, Croatia

Last updated: August 23, 2025

In September, the average temperature in Slano, Croatia hovers around 21°C (70°F). Expect a minimum of 10°C (50°F) and a maximum reaching up to 30°C (87°F). During this month, you can anticipate 111 mm (4.4 in) of precipitation spread over 9 days, with an average humidity of 65%. Stay prepared for a mix of warm days and occasional rain!

September Temperature in Slano

In September in Slano, the average temperature is 21°C (70°F). Maximums can reach 30°C (87°F), while minimums can drop to as low as 10°C (50°F). This pleasant climate makes Slano an ideal destination for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Slano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Slano, September typically has an average temperature of 21°C (70°F), with highs reaching up to 30°C (87°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec434750556371767770615547
Data source: Temperature data for Slano 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 Slano

In Slano in September, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

September Precipitation Trends in Slano

The chart displays monthly precipitation patterns in Slano, 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 Slano, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec116162143118108533446111149293249
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Slano

In Slano in September humidity is 65%. With an average temperature of 21°C (70°F), this humidity feels quite sticky and can make outdoor activities feel a bit tiring; it's best to stay hydrated and take breaks in the shade while exploring.

September Average Humidity in Slano

This chart illustrates the average monthly humidity levels in Slano, 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 Slano is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%79%75%74%66%59%53%65%78%85%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Slano

In Slano 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 Slano.

Maximum UV Index Levels in Slano for September

The chart shows the monthly maximum UV Index (UVI) for Slano 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 Slano typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Slano 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 Slano Compares to Other Months

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

This table compares monthly weather conditions in Slano, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)116 mm (4.6 inches)88%low
February Weather8°C (47°F)162 mm (6.4 inches)82%moderate
March Weather10°C (50°F)143 mm (5.6 inches)79%high
April Weather13°C (56°F)118 mm (4.6 inches)75%high
May Weather17°C (63°F)108 mm (4.2 inches)74%very high
June Weather22°C (71°F)53 mm (2.1 inches)66%very high
July Weather24°C (76°F)34 mm (1.3 inches)59%very high
August Weather25°C (78°F)46 mm (1.8 inches)53%very high
September Weather21°C (70°F)111 mm (4.4 inches)65%high
October Weather16°C (61°F)149 mm (5.9 inches)78%moderate
November Weather13°C (55°F)293 mm (11.6 inches)85%moderate
December Weather9°C (48°F)249 mm (9.8 inches)86%low

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