September weather forecast
Pamplona, Spain

September in Pamplona brings about the arrival of autumn that ushers in cooler temperatures and a decrease in daylight hours. This season's transition reflects in a notable dip in UV Index, reducing from 8 to 6. The weather conditions, while remaining drier than the latter half of the year, begin to welcome a slight increase in rainfall. Nights start drawing in earlier, a clear sign of summer's end. The progression into October hints at a further dip in temperatures and precipitation levels escalating.

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to a still warm 24.5°C (76.1°F) from August's 28.3°C (82.9°F). Against the high September temperatures, Pamplona records an average drop to a fresh 12°C (53.6°F) at night.

Humidity

In September, the average relative humidity is 62%.

Rainfall

In September, in Pamplona, the rain falls for 10 days. Throughout September, 44mm (1.73") of precipitation is accumulated. Throughout the year, in Pamplona, Spain, there are 154 rainfall days, and 671mm (26.42") of precipitation is accumulated.

Daylight

In Pamplona, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 07:31 and sunset at 20:41. On the last day of the month, sunrise is at 08:03 and sunset at 19:49 CEST.

Sunshine

In September, the average sunshine in Pamplona, Spain, is 7.3h.

UV index

The average daily maximum UV index in September in Pamplona is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.