September weather forecast
Waterford, Ireland

September in Waterford embraces the arrival of autumn, with daytime temperatures starting to dip and nights becoming noticeably chillier. The city steadily gears itself for the changing season, wrapping up summer and unfurling autumn. A modest decrease in the lowest temperature from 12.1°C (53.8°F) to 10.2°C (50.4°F) manifests the seasonal shift. September rainfall slightly increases to 83mm (3.27") compared to the previous month. It’s a time of leaf fall, pumpkin spice, and scarves.

Temperature

As August turns into September in Waterford, the average high-temperatures rest at a refreshing 17.8°C (64°F), showing a minor variation from the prior month. In September, the average low-temperature records at a cool 10.2°C (50.4°F) during the nights.

Rainfall

In Waterford, in September, during 10.1 rainfall days, 83mm (3.27") of precipitation is typically accumulated. Throughout the year, there are 136.7 rainfall days, and 1021mm (40.2") of precipitation is accumulated.

Sea temperature

In Waterford, in September, the average water temperature is 15°C (59°F).
Note: Most people find it challenging to enjoy swimming in water that is 15°C (59°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.

Daylight

In Waterford, the average length of the day in September is 12h and 39min.
On the first day of September in Waterford, sunrise is at 6:40 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:07 pm IST.

Sunshine

In September, the average sunshine in Waterford is 4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.