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 reports an average high-temperature of a warm 28.6°C (83.5°F), slightly varied from August's 31°C (87.8°F). Vila Nova de São Pedro, in the heat of September, registers a significant plunge to a mean of 15.2°C (59.4°F) during the nights.Heat index
Throughout September, the heat index is appraised at a tropical 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Vila Nova de São Pedro, Portugal, the average relative humidity in September is 63%.Rainfall
In September, the rain falls for 5.7 days. Throughout September, 19mm (0.75") of precipitation is accumulated. Throughout the year, in Vila Nova de São Pedro, there are 108.1 rainfall days, and 337mm (13.27") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:04 and sunset at 20:05. On the last day of September, sunrise is at 07:30 and sunset at 19:19 WEST.
Sunshine
In September, the average sunshine in Vila Nova de São Pedro is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
How hot does it get in Vila Nova de São Pedro in September?
What is the average humidity in September in Vila Nova de São Pedro?
How much does it rain in Vila Nova de São Pedro in September?
How many hours of daylight does Vila Nova de São Pedro have in September?
When is the sunrise / sunset in September in Vila Nova de São Pedro?
How long on average sun shines in September in Vila Nova de São Pedro?
How high is the UV index in September in Vila Nova de São Pedro?
Average temperature in September
Vila Nova de São Pedro, Portugal
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (14°C).
- Average low temperature in September: 15.2°C
The month with the highest average low temperature is July (15.8°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).
Average pressure in September
Vila Nova de São Pedro, Portugal
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Vila Nova de São Pedro, Portugal
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest months (with the lowest average wind speed) are September and October (10.6km/h).
Average humidity in September
Vila Nova de São Pedro, Portugal
- Average humidity in September: 63%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Vila Nova de São Pedro, Portugal
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (53mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Vila Nova de São Pedro, Portugal
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is November (13.9 days).
The month with the least rainy days is August (2.4 days).
Average daylight in September /
Average sunshine in September
Vila Nova de São Pedro, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Vila Nova de São Pedro, Portugal
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is July (27.3 days).
The months with the least sunshine days are April and November (14.6 days).
Average UV index in September
Vila Nova de São Pedro, Portugal
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Vila Nova de São Pedro, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Vila Nova de São Pedro, Portugal
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
Vila Nova de São Pedro, Portugal
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