September weather forecastFunchal, Portugal
September
Weather in September
As Funchal transitions from summer to autumn in September, the city's weather character changes gradually. Warm temperatures persist, albeit slightly lower than in previous months. While rainfall increases to 10mm (0.39") dispersed over approximately 6.9 days, it's nowhere near close to the winter levels. Increased cloud coverage accompanies the rise in rainfall, yet long daylight duration and ample sunshine ensure that the city remains vibrant. September's weather makes it an attractive month for those who prefer milder conditions.Temperature
The ushering in of September brings an average high-temperature of a pleasant 22.8°C (73°F), closely mirroring the 23°C (73.4°F) of August. Nights in September exhibit a minor reduction to an average low temperature of 21.7°C (71.1°F).Humidity
In Funchal, Portugal, the average relative humidity in September is 76%.Rainfall
In Funchal, in September, 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 in Funchal.Note: Imagine a swim in 23.8°C (74.8°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
The average length of the day in September in Funchal is 12h and 22min.On the first day of September, sunrise is at 07:42 and sunset at 20:32. On the last day of the month, sunrise is at 08:01 and sunset at 19:53 WEST.
Sunshine
In Funchal, the average sunshine in September is 8.9h.UV index
July through October, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
The 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 pressure in September
Funchal, Portugal
- Average pressure in September: 1019mbar
The month with the highest atmospheric pressure is January (1024.1mbar).
The month with the lowest atmospheric pressure is October (1017mbar).
Average wind speed in September
Funchal, Portugal
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is February (23km/h).
The calmest month (with the lowest average wind speed) is September (17.7km/h).
Average humidity in September
Funchal, Portugal
- Average humidity in September: 76%
The 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: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 12min).
The months with the least sunshine are January and December (Average sunshine: 7h and 36min).
Average sunshine days in September
Funchal, Portugal
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is August (20.9 days).
The month with the least sunshine days is November (8.4 days).
Average UV index in September
Funchal, Portugal
- Average UV index in September: 6
The months with the highest UV index are July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 5).
Average cloud cover in September
Funchal, Portugal
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Funchal, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
