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
With the arrival of September, Gavião experiences a modest decline in average high-temperatures, transitioning from a tropical 32.7°C (90.9°F) in August to a moderately hot 29.5°C (85.1°F). Gavião observes a substantial disparity between daytime high and the average low-temperature of 15°C (59°F) during September nights.Heat index
For most parts of September, the heat index is calculated to be a hot 31°C (87.8°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity is 57%.Rainfall
In Gavião, in September, it is raining for 4.3 days, with typically 16mm (0.63") of accumulated precipitation. Throughout the year, there are 85.1 rainfall days, and 280mm (11.02") of precipitation is accumulated.Daylight
In Gavião, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:00 and sunset at 20:02. On the last day of September, in Gavião, sunrise is at 07:27 and sunset at 19:15 WEST.
Sunshine
The average sunshine in September is 9.2h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Gavião. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Gavião in September?
What is the average humidity in September in Gavião?
How much does it rain in Gavião in September?
What is the average length of the day in September in Gavião?
What time are sunrise and sunset in September in Gavião?
How long on average sun shines in September in Gavião?
When is the highest UV index in Gavião?
What is the UV index intensity in September in Gavião?
Average temperature in September
Gavião, Portugal
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is August (32.7°C).
The month with the lowest average high temperature is January (13.3°C).
- Average low temperature in September: 15°C
The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is January (5.7°C).
Average pressure in September
Gavião, Portugal
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Gavião, Portugal
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity in September
Gavião, Portugal
- Average humidity in September: 57%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Gavião, Portugal
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is November (50mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Gavião, Portugal
- Average rainfall days in September: 4.3 days
The month with the highest number of rainy days is November (11.2 days).
The month with the least rainy days is August (1.6 days).
Average daylight in September /
Average sunshine in September
Gavião, 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 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Gavião, Portugal
- Average sunshine days in September: 25 days
The months with the most sunshine days are July and August (28.7 days).
The month with the least sunshine days is November (17.9 days).
Average UV index in September
Gavião, Portugal
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Gavião, Portugal
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Gavião, Portugal
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (8km).
