October weather forecast
Porto Santo Island, Portugal

As October rolls in, a significant shift in Porto Santo Island's weather pattern can be perceived. Temperatures begin to reduce, signaling the onset of autumn, with conditions becoming noticeably cooler than the preceding few months. Despite this, the sunshine remains profuse, offering plenty of opportunities for sunbathing and enjoying outdoor activities. The daylight hours begin to recede, while the UV index decreases, reflecting the lowering positioning of the sun. Rainfall increases to 47mm (1.85") dispersed over approximately ten days, marking a significant rise compared to September, hence, the island starts planning its goodbye to the dry summer.

Temperature

October's weather records an average high-temperature of a still warm 23.3°C (73.9°F), showing little deviation from September. Throughout October, Porto Santo Island observes a steady low-temperature average of 18.5°C (65.3°F), reflecting a minor dip from daytime highs.

Humidity

The average relative humidity in October in Porto Santo Island is 77%.

Rainfall

In Porto Santo Island, Portugal, in October, it is raining for 10 days, with typically 47mm (1.85") of accumulated precipitation. In Porto Santo Island, during the entire year, the rain falls for 97 days and collects up to 382mm (15.04") of precipitation.

Sea temperature

In Porto Santo Island, in October, the average water temperature is 22.9°C (73.2°F).
Note: Given an individual's cold sensitivity, considering factors like sunshine, wind, and air temperature, a brief swim in 22.9°C (73.2°F) water might be pleasurable. (FYI: The standard water temperature for Olympic swimming contests is 25°C (77°F) to 28°C (82.4°F).)

Daylight

The average length of the day in October is 11h and 21min.
On the first day of October in Porto Santo Island, sunrise is at 07:59 and sunset at 19:49 WEST. On the last day of the month, sunrise is at 07:23 and sunset at 18:14 WET.
Note: On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 01:00; consequently, the time zone reverts from WET to WEST.

Sunshine

In Porto Santo Island, the average sunshine in October is 6h.

UV index

In Porto Santo Island, Portugal, the average daily maximum UV index in October is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during October leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Caution! Sand and water reflections can notably increase the UV radiation intensity.