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
The shift into September finds Cruz Branca, Portugal, at an average high-temperature of a still warm 27°C (80.6°F), closely comparable to August's conditions. Cruz Branca anticipates a pronounced temperature drop from daily highs during the nights of September, with an average low of 13.6°C (56.5°F).Heat index
The average heat index in September is computed to be 28°C (82.4°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 65%.Rainfall
In Cruz Branca, Portugal, during September, the rain falls for 5.6 days and regularly aggregates up to 23mm (0.91") of precipitation. In Cruz Branca, during the entire year, the rain falls for 119.4 days and collects up to 525mm (20.67") of precipitation.Daylight
In Cruz Branca, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 07:01 and sunset at 20:04. On the last day of September, in Cruz Branca, sunrise is at 07:29 and sunset at 19:17 WEST.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Cruz Branca, 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 radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Be vigilant - Preventing sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the usual temperature for Cruz Branca in September?
What are the least humid months in Cruz Branca?
What is the average humidity in September in Cruz Branca?
How much does it rain in Cruz Branca in September?
How many hours of daylight does Cruz Branca have in September?
What time are sunrise and sunset in September in Cruz Branca?
How many hours of sunshine does Cruz Branca have in September?
How high is the UV index in September in Cruz Branca?
Average temperature in September
Cruz Branca, Portugal
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.9°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in September
Cruz Branca, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Cruz Branca, Portugal
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is September (7.2km/h).
Average humidity in September
Cruz Branca, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in September
Cruz Branca, Portugal
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in September
Cruz Branca, Portugal
- Average rainfall days in September: 5.6 days
The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is August (2.8 days).
Average daylight in September /
Average sunshine in September
Cruz Branca, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
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 12min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Cruz Branca, Portugal
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is August (27.5 days).
The months with the least sunshine days are April and November (14.3 days).
Average UV index in September
Cruz Branca, 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, February, March, November and December (UV index 3).
Average cloud cover in September
Cruz Branca, Portugal
- Average cloud cover in September: 24
The month with the most cloud cover is January (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 22).
Average visibility in September
Cruz Branca, Portugal
- Average visibility in September: 9km
The months with the highest visibility are June, September, October and December (9km).
The months with the lowest visibility are January, February, March, April, May, July, August and November (8km).
Cruz Branca, Portugal
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