September weather forecast and climate
Funchal, Portugal

September, the first month of the autumn, in Funchal, is also an agreeable month, with average temperature fluctuating between 21.7°C (71.1°F) and 22.8°C (73°F).

Temperature

In September, the average high-temperature is practically the same as in August - an agreeable 22.8°C (73°F). In September, the average low-temperature is 21.7°C (71.1°F).

Humidity

The average relative humidity in Funchal is 76%.

Rainfall

In Funchal, it is raining for 6.9 days, with typically 10mm (0.39") of accumulated precipitation. In Funchal, during the entire year, the rain falls for 116.4 days and collects up to 232mm (9.13") of precipitation.

Sea temperature

With an average sea temperature of 23.8°C (74.8°F), September is the month with the warmest seawater.
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.8°C (74.8°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In Funchal, the average length of the day in September is 12.4h.

Sunshine

The average sunshine in Funchal is 8.9h.

UV index

Months with the highest UV index are July through October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Funchal?

In Funchal, in September, the average high-temperature is 22.8°C (73°F), and the average low-temperature is 21.7°C (71.1°F).

What is the average humidity in September in Funchal?

In Funchal, Portugal, the average relative humidity in September is 76%.

How much does it rain in Funchal in September?

In Funchal, in September, during 6.9 rainfall days, 10mm (0.39") of precipitation is typically accumulated.

What is the month with the warmest sea water in Funchal?

September is the month with the warmest seawater, with an average sea temperature of 23.8°C (74.8°F).

How warm is the water in September in Funchal?

In Funchal, Portugal, the average seawater temperature in September is 23.8°C (74.8°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.8°C (74.8°F) water.

How many hours of daylight does Funchal have in September?

In September, the average length of the day is 12.4h.

How long on average sun shines in September in Funchal?

The average sunshine in September in Funchal is 8.9h.

What is the month with the highest UV index in Funchal?

July through October, with an average maximum UV index of 6, are months with the highest UV index in Funchal.

How high is the UV index in September in Funchal?

The average daily maximum UV index in September in Funchal, Portugal, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Funchal, Portugal
  • Average high temperature in September: 22.8°C

The warmest month (with the highest average high temperature) is August (23°C).
Months with the lowest average high temperature are February and March (16.9°C).

  • Average low temperature in September: 21.7°C

The month with the highest average low temperature is September (21.7°C).
The coldest month (with the lowest average low temperature) is March (15.1°C).

Average humidity in September - Funchal, Portugal
  • Average humidity in September: 76%

Months with the highest relative humidity are June and August (80%).
The month with the lowest relative humidity is February (73%).

Average rainfall in September - Funchal, Portugal
  • Average rainfall in September: 10mm

The wettest month (with the highest rainfall) is October (44mm).
The driest month (with the least rainfall) is August (3mm).

Average rainfall days in September - Funchal, Portugal
  • Average rainfall days in September: 6.9 days

The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is August (3.9 days).

Average sea temperature in September - Funchal, Portugal
  • Average sea temperature in September: 23.8°C

The best month for swimming (with the highest average sea temperature) is September (23.8°C).
The coldest month (with the lowest average sea temperature) is March (17.8°C).

Average daylight in September / Average sunshine in September - Funchal, Portugal
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is June (Average sunshine: 9.2h).
Months with the least sunshine are January and December (Average sunshine: 7.6).

Average UV index in September - Funchal, Portugal
  • Average UV index in September: 6

Months with the highest UV index are July, August, September and October (UV index 6).
Months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).