September weather forecastRab, Croatia

Weather in September

September in Rab heralds the autumn season. The temperature starts to descend from the summer highs, yet the abundant sunshine and warm sea temperature ensure a pleasant atmosphere. Among the autumn months, September records the highest rainfall totalling 117mm (4.61"). While it cools off the day's warmth, it does not result in significant chills. The perceptible shift in weather conditions contrasts with the heat of the preceding months.

Temperature

The start of September in Rab involves a subtle temperature drop, shifting from 28°C (82.4°F) in August to a still moderately hot 24°C (75.2°F). Rab experiences a mean low-temperature of 15°C (59°F) during September.

Rainfall

In September, in Rab, the rain falls for 12 days. Throughout September, 117mm (4.61") of precipitation is accumulated. In Rab, during the entire year, the rain falls for 152 days and collects up to 1212mm (47.72") of precipitation.

Sea temperature

In Rab, in September, the average water temperature is 22°C (71.6°F).
Note: Consideration of an individual's cold resistance, combined with conditions like sunshine, wind, and temperature, suggests that swimming in 22°C (71.6°F) water can be delightful. (Olympic swimming is usually in 25°C (77°F) to 28°C (82.4°F) water.)

Daylight

In Rab, Croatia, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 06:23 and sunset at 19:37. On the last day of September, sunrise is at 06:58 and sunset at 18:43 CEST.

Sunshine

In Rab, Croatia, the average sunshine in September is 7h.

UV index

In September, the average daily maximum UV index in Rab, Croatia, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 5 in September translates into these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Stay aware! UV radiation is magnified when reflecting off sand and water.