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 sea temperature 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
The arrival of September is marked by an average high-temperature of a moderately hot 28.2°C (82.8°F), bearing a close resemblance to August. Nighttime temperatures in Alhandra exhibit a substantial dip from daytime highs during September, averaging at a refreshing 15.8°C (60.4°F).Heat index
The heat index in September is appraised at a hot 30°C (86°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Always consider that heat index estimations are for light winds and places in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
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 influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Alhandra, Portugal, the average relative humidity in September is 65%.Rainfall
In Alhandra, in September, during 5 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, there are 97 rainfall days, and 309mm (12.17") of precipitation is accumulated.Sea temperature
With an average sea temperature of 19.9°C (67.8°F), September is the month with the warmest seawater.Note: For most, swimming in 19.9°C (67.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Alhandra, the average length of the day in September is 12h and 26min.On the first day of September in Alhandra, sunrise is at 07:05 and sunset at 20:06. On the last day of the month, sunrise is at 07:31 and sunset at 19:20 WEST.
Sunshine
The average sunshine in September is 9.2h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Alhandra. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Guard oneself from overexposure. Defence against sun injury is vital. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
Is it hot in Alhandra during September?
What is the average humidity in September in Alhandra?
How many days does it rain in September in Alhandra?
When is the sea warmest in Alhandra?
How cold is the water in September in Alhandra?
How many hours of daylight does Alhandra have in September?
When is the sunrise / sunset in September in Alhandra?
How many hours of sunshine does Alhandra have in September?
What is the month with the highest UV index in Alhandra?
How high is the UV index in September in Alhandra?
Average temperature in September
Alhandra, 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
Alhandra, Portugal
- Average pressure in September: 1016.9mbar
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
Alhandra, Portugal
- Average wind speed in September: 11.2km/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
Alhandra, 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
Alhandra, Portugal
- Average rainfall in September: 15mm
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
Alhandra, Portugal
- Average rainfall days in September: 5 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 sea temperature in September
Alhandra, Portugal
- Average sea temperature in September: 19.9°C
The best month for swimming (with the highest average sea temperature) is September (19.9°C).
The coldest month (with the lowest average sea temperature) is March (15.1°C).
Average daylight in September /
Average sunshine in September
Alhandra, 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 1min
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
Alhandra, Portugal
- Average sunshine days in September: 24.2 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
Alhandra, Portugal
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Alhandra, 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
Alhandra, 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).
Alhandra, Portugal
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