September weather forecastAzambuja, Portugal
September
Weather in September
The first month of the autumn, September, is still a warm month in Azambuja, Portugal, with temperature in the range of an average high of 28.2°C (82.8°F) and an average low of 15.8°C (60.4°F).Temperature
As August transitions into September, Azambuja records an average high-temperature of a moderately hot 28.2°C (82.8°F), showing a gentle shift from the preceding month. Despite the significant gap from daytime peaks, Azambuja experiences an average low-temperature of 15.8°C (60.4°F) in September.Heat index
For September, the heat index is estimated at a hot 30°C (86°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In September, the average relative humidity in Azambuja is 65%.Rainfall
In September, in Azambuja, the rain falls for 5.3 days. Throughout September, 16mm (0.63") of precipitation is accumulated. Throughout the year, in Azambuja, there are 97.3 rainfall days, and 310mm (12.2") of precipitation is accumulated.Daylight
In Azambuja, the average length of the day in September is 12h and 26min.On the first day of September in Azambuja, sunrise is at 07:04 and sunset at 20:05. On the last day of the month, sunrise is at 07:31 and sunset at 19:19 WEST.
Sunshine
The average sunshine in September in Azambuja, Portugal, is 9.2h.UV index
In Azambuja, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Azambuja, Portugal
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is August (30.1°C).
The month with the lowest average high temperature is January (14.6°C).
- Average low temperature in September: 15.8°C
The month with the highest average low temperature is July (16.5°C).
The coldest month (with the lowest average low temperature) is February (7.7°C).
Average pressure in September
Azambuja, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Azambuja, Portugal
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is July (14.2km/h).
The calmest month (with the lowest average wind speed) is October (11km/h).
Average humidity in September
Azambuja, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Azambuja, Portugal
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Azambuja, Portugal
- Average rainfall days in September: 5.3 days
The month with the highest number of rainy days is April (12.8 days).
The month with the least rainy days is July (2.2 days).
Average daylight in September /
Average sunshine in September
Azambuja, Portugal
- Average daylight in September: 12h and 24min
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 12min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Azambuja, Portugal
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (15.8 days).
Average UV index in September
Azambuja, 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, November and December (UV index 3).
Average cloud cover in September
Azambuja, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Azambuja, 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).





