Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from a tropical 34.7°C (94.5°F) in August to a still hot 30.8°C (87.4°F). São Marcos da Ataboeira observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 17°C (62.6°F) throughout the month of September.Heat index
September's average heat index is computed to be a hot 33°C (91.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In São Marcos da Ataboeira, the average relative humidity in September is 52%.Rainfall
In São Marcos da Ataboeira, during September, the rain falls for 3.3 days and regularly aggregates up to 5mm (0.2") of precipitation. In São Marcos da Ataboeira, Portugal, during the entire year, the rain falls for 65.2 days and collects up to 110mm (4.33") of precipitation.Daylight
The average length of the day in September in São Marcos da Ataboeira is 12h and 25min.On the first day of the month, sunrise is at 07:02 and sunset at 20:00. On the last day of September, sunrise is at 07:26 and sunset at 19:16 WEST.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in São Marcos da Ataboeira is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
Is it hot in São Marcos da Ataboeira during September?
What is the average humidity in September in São Marcos da Ataboeira?
How many days does it rain in September in São Marcos da Ataboeira?
What is the average length of the day in September in São Marcos da Ataboeira?
When is the sunrise / sunset in September in São Marcos da Ataboeira?
How long on average sun shines in September in São Marcos da Ataboeira?
What is the UV index intensity in September in São Marcos da Ataboeira?
Average temperature in September
São Marcos da Ataboeira, Portugal
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is August (34.7°C).
The month with the lowest average high temperature is January (14.4°C).
- Average low temperature in September: 17°C
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in September
São Marcos da Ataboeira, Portugal
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
São Marcos da Ataboeira, Portugal
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is July (11.9km/h).
The calmest month (with the lowest average wind speed) is September (9.7km/h).
Average humidity in September
São Marcos da Ataboeira, Portugal
- Average humidity in September: 52%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
São Marcos da Ataboeira, Portugal
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is April (20mm).
The driest months (with the least rainfall) are July and August (1mm).
Average rainfall days in September
São Marcos da Ataboeira, Portugal
- Average rainfall days in September: 3.3 days
The month with the highest number of rainy days is April (9.7 days).
The month with the least rainy days is August (1 days).
Average daylight in September /
Average sunshine in September
São Marcos da Ataboeira, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
São Marcos da Ataboeira, Portugal
- Average sunshine days in September: 25.2 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is April (18.8 days).
Average UV index in September
São Marcos da Ataboeira, Portugal
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
São Marcos da Ataboeira, Portugal
- Average cloud cover in September: 17
The months with the most cloud cover are January and April (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in September
São Marcos da Ataboeira, Portugal
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
São Marcos da Ataboeira, Portugal
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