nomadseason

September Weather in Sumece, Croatia

Last updated: August 23, 2025

In September, the average temperature in Sumece, Croatia is a comfortable 18°C (65°F). However, expect a temperature range from a cool 3°C (38°F) to a warm 34°C (94°F). With an average humidity of 61%, the atmosphere can feel quite humid. Additionally, anticipate about 43 mm (1.7 in) of precipitation spread over 7 days, so packing an umbrella might be wise!

September Temperature in Sumece

In September in Sumece, the average temperature is 18°C (65°F). Maximums can reach 34°C (94°F) and minimums can be as low as 3°C (38°F). This diverse temperature range makes Sumece an ideal destination for travelers looking to experience both warm and cool weather activities.

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

The chart illustrates September temperature patterns in Sumece, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumece, September typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec344145546271737465554639
Data source: Temperature data for Sumece generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Sumece

In Sumece in September, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 days.

September Precipitation Trends in Sumece

The chart displays monthly precipitation patterns in Sumece, 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 Sumece, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec516258699877834943705980
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Sumece

In Sumece in September humidity is 61%. With an average temperature of 18°C (65°F), this humidity feels like a warm blanket enveloping you, making your travels feel more comfortable yet slightly muggy, as you wander through the streets, perhaps seeking shade or a cool drink to help refresh you.

September Average Humidity in Sumece

This chart illustrates the average monthly humidity levels in Sumece, 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 Sumece is approximately 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%84%77%70%70%68%63%52%61%81%86%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sumece

In Sumece 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 Sumece.

Maximum UV Index Levels in Sumece for September

The chart shows the monthly maximum UV Index (UVI) for Sumece 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 Sumece typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Sumece 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 Sumece Compares to Other Months

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

This table compares monthly weather conditions in Sumece, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)51 mm (2.0 inches)89%low
February Weather5°C (41°F)62 mm (2.5 inches)84%moderate
March Weather7°C (46°F)58 mm (2.3 inches)77%moderate
April Weather12°C (55°F)69 mm (2.7 inches)70%high
May Weather17°C (63°F)98 mm (3.9 inches)70%very high
June Weather22°C (71°F)77 mm (3.0 inches)68%very high
July Weather23°C (74°F)83 mm (3.3 inches)63%very high
August Weather23°C (74°F)49 mm (1.9 inches)52%very high
September Weather18°C (65°F)43 mm (1.7 inches)61%high
October Weather13°C (56°F)70 mm (2.8 inches)81%moderate
November Weather8°C (47°F)59 mm (2.3 inches)86%moderate
December Weather4°C (39°F)80 mm (3.1 inches)89%low

Compare Sumece's Climate with Cities Worldwide