September weather forecastCabo da Roca, Portugal
September
Weather in September
September, the first month of the autumn in Cabo da Roca, is still a warm month, with an average temperature varying between 18.3°C (64.9°F) and 23.3°C (73.9°F).Temperature
The arrival of September brings an average high-temperature of a still warm 23.3°C (73.9°F), nearly identical to August's 23.8°C (74.8°F). Throughout September, Cabo da Roca reports a steady low-temperature average of 18.3°C (64.9°F), slightly lower than its daytime counterpart.Humidity
In September, the average relative humidity is 74%.Rainfall
In September, the rain falls for 5.8 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Cabo da Roca, during the entire year, the rain falls for 111.2 days and collects up to 361mm (14.21") of precipitation.Daylight
The average length of the day in September is 12h and 26min.On the first day of September in Cabo da Roca, sunrise is at 07:07 and sunset at 20:08. On the last day of the month, sunrise is at 07:33 and sunset at 19:22 WEST.
Sunshine
The average sunshine in September in Cabo da Roca, Portugal, is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Put precautions into practice - Protective measures against sun-induced damage are advised. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cabo da Roca, Portugal
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (14.6°C).
- Average low temperature in September: 18.3°C
The month with the highest average low temperature is August (18.5°C).
The coldest month (with the lowest average low temperature) is February (10.9°C).
Average pressure in September
Cabo da Roca, Portugal
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in September
Cabo da Roca, Portugal
- Average wind speed in September: 16.4km/h
The windiest month (with the highest average wind speed) is February (20.3km/h).
The calmest month (with the lowest average wind speed) is October (16.2km/h).
Average humidity in September
Cabo da Roca, Portugal
- Average humidity in September: 74%
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Cabo da Roca, Portugal
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Cabo da Roca, Portugal
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is November (15.1 days).
The month with the least rainy days is August (2 days).
Average daylight in September /
Average sunshine in September
Cabo da Roca, Portugal
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Cabo da Roca, Portugal
- Average sunshine days in September: 23.6 days
The month with the most sunshine days is August (27.7 days).
The month with the least sunshine days is November (12.8 days).
Average UV index in September
Cabo da Roca, Portugal
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Cabo da Roca, Portugal
- Average cloud cover in September: 18
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Cabo da Roca, 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).
