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
Santa Clara-a-Velha's weather, upon September's arrival, documents an average high-temperature of a still moderately hot 25.8°C (78.4°F), nearly identical to the prior month. Throughout the month of September, Santa Clara-a-Velha expects an average low of 17.9°C (64.2°F).Humidity
In September, the average relative humidity is 68%.Rainfall
In September, in Santa Clara-a-Velha, the rain falls for 3.9 days. Throughout September, 6mm (0.24") of precipitation is accumulated. Throughout the year, in Santa Clara-a-Velha, there are 85.4 rainfall days, and 164mm (6.46") of precipitation is accumulated.Daylight
The average length of the day in September in Santa Clara-a-Velha, Portugal, is 12h and 25min.On the first day of the month, sunrise is at 07:04 and sunset at 20:02. On the last day of September, in Santa Clara-a-Velha, sunrise is at 07:28 and sunset at 19:18 WEST.
Sunshine
In September, the average sunshine in Santa Clara-a-Velha is 9.5h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Santa Clara-a-Velha, Portugal. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during September translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Santa Clara-a-Velha in September?
What is the average humidity in September in Santa Clara-a-Velha?
How much does it rain in Santa Clara-a-Velha in September?
What is the average length of the day in September in Santa Clara-a-Velha?
When is the sunrise / sunset in September in Santa Clara-a-Velha?
How many hours of sunshine does Santa Clara-a-Velha have in September?
What is the month with the highest UV index in Santa Clara-a-Velha?
What is the UV index reading in September in Santa Clara-a-Velha?
Average temperature in September
Santa Clara-a-Velha, Portugal
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (14.5°C).
- Average low temperature in September: 17.9°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (9.2°C).
Average pressure in September
Santa Clara-a-Velha, Portugal
- Average pressure in September: 1016.7mbar
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
Santa Clara-a-Velha, Portugal
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).
Average humidity in September
Santa Clara-a-Velha, Portugal
- Average humidity in September: 68%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Santa Clara-a-Velha, Portugal
- Average rainfall in September: 6mm
The wettest month (with the highest rainfall) is November (25mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Santa Clara-a-Velha, Portugal
- Average rainfall days in September: 3.9 days
The month with the highest number of rainy days is March (12.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in September /
Average sunshine in September
Santa Clara-a-Velha, 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 36min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Santa Clara-a-Velha, Portugal
- Average sunshine days in September: 24.4 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in September
Santa Clara-a-Velha, 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 month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Santa Clara-a-Velha, Portugal
- Average cloud cover in September: 16
The month with the most cloud cover is January (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Santa Clara-a-Velha, 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).
Santa Clara-a-Velha, Portugal
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