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September Weather in Sinac, Croatia

Last updated: August 23, 2025

In September, the average temperature in Sinac, Croatia hovers around 16°C (61°F), with a minimum dipping to 3°C (38°F) and a maximum soaring to 29°C (85°F). Expect about 179 mm (7.0 in) of precipitation spread over 13 days, contributing to an average humidity level of 62%. Stay prepared for varied conditions!

September Temperature in Sinac

In September in Sinac, the average temperature is 16°C (61°F), with maximums reaching 29°C (85°F) and minimums dropping as low as 3°C (38°F). This range of temperatures makes it ideal for travelers to pack layers and enjoy both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Sinac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sinac, September typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (85°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec333842505767707061524537
Data source: Temperature data for Sinac 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 Sinac

In Sinac in September, the precipitation amount is 179 mm (7.0 in) spread over 13 days.

September Precipitation Trends in Sinac

The chart displays monthly precipitation patterns in Sinac, 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 Sinac, September typically receives around 179 mm (7.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec10213610710616685107108179142186186
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sinac

In Sinac in September, humidity is 62%. With an average temperature of 16°C (61°F), this humidity feels like a gentle blanket, making traveling comfortable yet occasionally sticky, prompting the need for light, breathable clothing to fully enjoy the sights.

September Average Humidity in Sinac

This chart illustrates the average monthly humidity levels in Sinac, 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 Sinac is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%83%75%72%70%69%64%51%62%81%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sinac

In Sinac 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 Sinac.

Maximum UV Index Levels in Sinac for September

The chart shows the monthly maximum UV Index (UVI) for Sinac 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 Sinac typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24579101087532
Data source: Sinac 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 Sinac Compares to Other Months

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

This table compares monthly weather conditions in Sinac, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)102 mm (4.0 inches)89%low
February Weather3°C (38°F)136 mm (5.3 inches)83%moderate
March Weather5°C (42°F)107 mm (4.2 inches)75%moderate
April Weather10°C (50°F)106 mm (4.2 inches)72%high
May Weather14°C (57°F)166 mm (6.5 inches)70%very high
June Weather19°C (67°F)85 mm (3.4 inches)69%very high
July Weather21°C (70°F)107 mm (4.2 inches)64%very high
August Weather21°C (71°F)108 mm (4.3 inches)51%very high
September Weather16°C (61°F)179 mm (7.0 inches)62%high
October Weather11°C (53°F)142 mm (5.6 inches)81%moderate
November Weather7°C (45°F)186 mm (7.3 inches)87%moderate
December Weather3°C (38°F)186 mm (7.3 inches)88%low

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