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 advent of September signifies a minor shift to an average high-temperature of a still warm 27°C (80.6°F), aligning closely with August. Ceira, amidst the high September temperatures, experiences a substantial shift to an average nighttime low of 13.6°C (56.5°F).Heat index
The heat index value for September is computed to be 28°C (82.4°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
August and September, with an average relative humidity of 65%, are the least humid months in Ceira.Rainfall
In September, in Ceira, the rain falls for 5.6 days. Throughout September, 23mm (0.91") of precipitation is accumulated. In Ceira, during the entire year, the rain falls for 119.4 days and collects up to 525mm (20.67") of precipitation.Daylight
The average length of the day in September in Ceira, Portugal, is 12h and 27min.On the first day of September in Ceira, sunrise is at 07:01 and sunset at 20:05. On the last day of the month, sunrise is at 07:29 and sunset at 19:17 WEST.
Sunshine
In September, the average sunshine in Ceira is 9.2h.UV index
In Ceira, Portugal, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are the temperatures in Ceira in September?
What are the least humid months in Ceira?
What is the average humidity in September in Ceira?
How much does it rain in Ceira in September?
What is the average length of the day in September in Ceira?
When are sunrise and sunset in September in Ceira?
How many hours of sunshine does Ceira have in September?
What is the UV index reading in September in Ceira?
Average temperature in September
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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
Ceira, 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).
Ceira, Portugal
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