September weather forecast
Poreč, Croatia

September signals a subtle transition towards autumn in Poreč. While temperatures and sea temperatures subtly descend, they remain quite pleasant for outdoor and water activities. The variance in temperatures—from 15°C (59°F) to 24°C (75.2°F)—affirms the city's progression towards cooler days. Daylight duration reduces, and the iconic extended sunshine hours begin to contract. As October looms, the city prepares for a more noticeable shift towards autumn.

Temperature

September sees a slight reduction in average high-temperature, with a shift from 28°C (82.4°F) in August to a still moderately hot 24°C (75.2°F). The nights of September anticipate an average low-temperature of 15°C (59°F).

Rainfall

In Poreč, in September, it is raining for 10 days, with typically 96mm (3.78") of accumulated precipitation. In Poreč, during the entire year, the rain falls for 142 days and collects up to 960mm (37.8") of precipitation.

Sea temperature

In Poreč, in September, the average water temperature is 23.7°C (74.7°F).
Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 23.7°C (74.7°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

The average length of the day in September is 12h and 32min.
On the first day of the month, sunrise is at 06:27 and sunset at 19:42. On the last day of September, in Poreč, sunrise is at 07:03 and sunset at 18:47 CEST.

Sunshine

In Poreč, the average sunshine in September is 7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Attention! The reflection of both water and sand can increase the intensity of UV rays.