September weather forecast
Haapsalu, Estonia

September depicts a slight decline in temperatures, signaling the dawn of autumn in Haapsalu. Autumn’s ushering hand brings the average high temperatures down to a pleasant 15°C (59°F). Along with the slight temperature drop, there is noticeable contraction in daylight hours, further affirming the advent of fall. With mellow sunlight, crisp air, and rain moderating the landscape's vibrancy, it is the perfect month to experience the changing colors of the season. The transition of seasons offers a chance to experience a balanced blend of weather conditions.

Temperature

September in Haapsalu signifies a minor drop in average high-temperature, transitioning from an enjoyable 19°C (66.2°F) in August to a still refreshing 15°C (59°F). Nighttime temperature lowers to an average of 9°C (48.2°F) in September.

Rainfall

The month with the most rainfall in Haapsalu is September, when the rain falls for 16 days and typically aggregates up to 70mm (2.76") of precipitation.

Sea temperature

In Haapsalu, in September, the average water temperature is 14°C (57.2°F).
Note: It is life-risking to swim in 14°C (57.2°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance.

Daylight

The average length of the day in September is 12h and 50min.
On the first day of September, sunrise is at 06:24 and sunset at 20:26. On the last day of the month, sunrise is at 07:29 and sunset at 19:01 EEST.

Sunshine

The average sunshine in September in Haapsalu, Estonia, is 5h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 3 in September translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.