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 begins with an average high-temperature of a still moderately hot 25°C (77°F), reflecting close similarity to the preceding month. In September, the recorded average low-temperature is a comfortable 19.3°C (66.7°F).Humidity
The average relative humidity in September in Olhos de Água is 68%.Rainfall
Months with rainfall are January through June, September through December. September is the first month it rains in Olhos de Água. Throughout September, in the average 2 rainfall days, it receives 2mm (0.08") of precipitation. Throughout the year, there are 37.2 rainfall days, and 46mm (1.81") of precipitation is accumulated.Daylight
The average length of the day in September in Olhos de Água is 12h and 25min.On the first day of September, sunrise is at 07:03 and sunset at 20:01. On the last day of the month, sunrise is at 07:27 and sunset at 19:17 WEST.
Sunshine
In September, the average sunshine is 9.6h.UV index
The months with the highest UV index in Olhos de Água are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the usual temperature for Olhos de Água in September?
What is the average humidity in September in Olhos de Água?
When does it start to rain in Olhos de Água?
What is the average length of the day in September in Olhos de Água?
What time are sunrise and sunset in September in Olhos de Água?
How many hours of sunshine does Olhos de Água have in September?
What are the months with the highest UV index in Olhos de Água?
How high is the UV index in September in Olhos de Água?
Average temperature in September
Olhos de Água, Portugal
- Average high temperature in September: 25°C
The warmest month (with the highest average high temperature) is August (27.4°C).
The month with the lowest average high temperature is January (15°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is August (19.8°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).
Average pressure in September
Olhos de Água, Portugal
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Olhos de Água, Portugal
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is February (18.3km/h).
The calmest month (with the lowest average wind speed) is September (12.7km/h).
Average humidity in September
Olhos de Água, Portugal
- Average humidity in September: 68%
The months with the highest relative humidity are January, March and April (75%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Olhos de Água, Portugal
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is November (10mm).
The driest months (with the least rainfall) are July and August (0mm).
Average rainfall days in September
Olhos de Água, Portugal
- Average rainfall days in September: 2 days
The month with the highest number of rainy days is April (6.2 days).
The month with the least rainy days is August (0.3 days).
Average daylight in September /
Average sunshine in September
Olhos de Água, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Olhos de Água, Portugal
- Average sunshine days in September: 27.3 days
The month with the most sunshine days is July (30.3 days).
The month with the least sunshine days is April (22.8 days).
Average UV index in September
Olhos de Água, 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, February, March, November and December (UV index 4).
Average cloud cover in September
Olhos de Água, Portugal
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Olhos de Água, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Olhos de Água, Portugal
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