September weather forecast
Umag, Croatia

September brings a gradual retreat from summer's pinnacle in Umag, Croatia. Temperatures range between a moderate 15°C (59°F) to 24°C (75.2°F), a noticeable cooling from August's constant heat. Bright sunny days continue to grace the majority of September despite the increased rainfall from 93mm (3.66") to a yearly high of 102mm (4.02"). The retreating summer heat does not deter the inviting warmth of the sea. Overall, September entails a slow but definitive transition towards autumn.

Temperature

In Umag, entering September brings a subtle temperature decrement, reducing from August's moderately hot 28°C (82.4°F) to a still warm 24°C (75.2°F). Umag throughout September, experiences an average nighttime temperature of 15°C (59°F).

Rainfall

In Umag, during September, the rain falls for 11 days and regularly aggregates up to 102mm (4.02") of precipitation. In Umag, during the entire year, the rain falls for 144 days and collects up to 1021mm (40.2") of precipitation.

Sea temperature

In Umag, the average seawater temperature in September is 23.7°C (74.7°F).
Note: Swimming in 23.7°C (74.7°F) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.

Daylight

In Umag, the average length of the day in September is 12h and 32min.
On the first day of September in Umag, sunrise is at 06:27 and sunset at 19:43. On the last day of the month, sunrise is at 07:03 and sunset at 18:48 CEST.

Sunshine

The average sunshine in September is 7h.

UV index

The average daily maximum UV index in September in Umag is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! Sand and water increase UV exposure due to their reflective properties.