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September Weather in Karlobag, Croatia

Last updated: August 23, 2025

The average temperature in Karlobag, Croatia during September is a comfortable 20°C (68°F), with minimums dipping to 8°C (46°F) and maximums soaring to 33°C (91°F). Expect about 136 mm (5.3 in) of precipitation spread over 9 days, contributing to an average humidity of 64%.

September Temperature in Karlobag

In September in Karlobag, the average temperature is 20°C (68°F). The maximum can reach 33°C (91°F) and the minimum can be as low as 8°C (46°F). This pleasant climate makes Karlobag an ideal destination for travelers seeking mild weather and a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Karlobag, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karlobag, September typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec414447556272767767595245
Data source: Temperature data for Karlobag 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 Karlobag

In Karlobag, in September, the precipitation amount is 136 mm (5.3 in) over the course of 9 days.

September Precipitation Trends in Karlobag

The chart displays monthly precipitation patterns in Karlobag, 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 Karlobag, September typically receives around 136 mm (5.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec9713110285113414249136127195208
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Karlobag

In Karlobag in September humidity is 64%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it a perfect time for travelers to explore, though they might want to stay hydrated and take breaks in the shade to fully enjoy the experience.

September Average Humidity in Karlobag

This chart illustrates the average monthly humidity levels in Karlobag, 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 Karlobag is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Karlobag

In Karlobag 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 Karlobag.

Maximum UV Index Levels in Karlobag for September

The chart shows the monthly maximum UV Index (UVI) for Karlobag 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 Karlobag typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Karlobag 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 Karlobag Compares to Other Months

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

This table compares monthly weather conditions in Karlobag, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)97 mm (3.8 inches)88%low
February Weather7°C (45°F)131 mm (5.2 inches)82%moderate
March Weather9°C (48°F)102 mm (4.0 inches)73%moderate
April Weather13°C (55°F)85 mm (3.3 inches)73%high
May Weather17°C (63°F)113 mm (4.4 inches)70%very high
June Weather22°C (73°F)40 mm (1.6 inches)69%very high
July Weather24°C (76°F)42 mm (1.6 inches)63%very high
August Weather25°C (77°F)49 mm (1.9 inches)51%very high
September Weather20°C (68°F)136 mm (5.3 inches)64%high
October Weather15°C (59°F)127 mm (5.0 inches)83%moderate
November Weather11°C (52°F)195 mm (7.7 inches)89%moderate
December Weather7°C (45°F)208 mm (8.2 inches)88%low

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