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
September
Weather in September
Temperature
The advent of September brings a slight shift in average high-temperature, moving from a tropical 94.5°F in August to a still hot 87.3°F. Ferreira do Alentejo experiences a drastic reduction from day temperatures to an average low of 62.6°F in September.Heat index
During September, the heat index is estimated at a hot 91.4°F. Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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 September, the average relative humidity in Ferreira do Alentejo is 52%.Rainfall
In Ferreira do Alentejo, during September, the rain falls for 3.3 days and regularly aggregates up to 0.2" of precipitation. In Ferreira do Alentejo, during the entire year, the rain falls for 65.2 days and collects up to 4.33" of precipitation.Daylight
In Ferreira do Alentejo, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:02 and sunset at 20:01. On the last day of September, in Ferreira do Alentejo, sunrise is at 07:27 and sunset at 19:16 WEST.
Sunshine
The average sunshine in September in Ferreira do Alentejo is 9.4h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during September leads to these advisories:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Ferreira do Alentejo?
What is the average humidity in September in Ferreira do Alentejo?
How many days does it rain in September in Ferreira do Alentejo?
What is the average length of the day in September in Ferreira do Alentejo?
When is the sunrise / sunset in September in Ferreira do Alentejo?
How long on average sun shines in September in Ferreira do Alentejo?
How high is the UV index in September in Ferreira do Alentejo?
Average temperature in September
Ferreira do Alentejo, Portugal
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (94.5°F).
The month with the lowest average high temperature is January (57.9°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is February (41.5°F).
Average pressure in September
Ferreira do Alentejo, Portugal
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is December (30.2"Hg).
The month with the lowest atmospheric pressure is April (29.98"Hg).
Average wind speed in September
Ferreira do Alentejo, Portugal
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is July (7.4mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).
Average humidity in September
Ferreira do Alentejo, 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
Ferreira do Alentejo, Portugal
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is April (0.79").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Ferreira do Alentejo, 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
Ferreira do Alentejo, Portugal
- Average daylight in September: 12h and 2min
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 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
Ferreira do Alentejo, Portugal
- Average sunshine days in September: 25.1 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
Ferreira do Alentejo, 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
Ferreira do Alentejo, 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
Ferreira do Alentejo, Portugal
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
