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
September
Weather in September
Temperature
The commencement of September introduces an average high-temperature of a still moderately hot 27.7°C (81.9°F), closely mirroring the preceding month. A pronounced dip becomes evident during the nights in September as Lomba de Égua logs a consistent average temperature of 14.5°C (58.1°F).Heat index
September's average heat index is estimated at a tropical 30°C (86°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Consider that heat index readings are for situations in the shade and light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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 Lomba de Égua, the average relative humidity in September is 65%.Rainfall
In Lomba de Égua, during September, the rain falls for 5.2 days and regularly aggregates up to 16mm (0.63") of precipitation. In Lomba de Égua, during the entire year, the rain falls for 103 days and collects up to 356mm (14.02") of precipitation.Daylight
In Lomba de Égua, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 07:03 and sunset at 20:05. On the last day of the month, sunrise is at 07:30 and sunset at 19:18 WEST.
Sunshine
The average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Lomba de Égua, Portugal
- Average high temperature in September: 27.7°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (13.4°C).
- Average low temperature in September: 14.5°C
The months with the highest average low temperature are July and August (15.2°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Lomba de Égua, Portugal
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Lomba de Égua, Portugal
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is July (12.4km/h).
The calmest month (with the lowest average wind speed) is September (9.8km/h).
Average humidity in September
Lomba de Égua, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Lomba de Égua, Portugal
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is November (58mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Lomba de Égua, Portugal
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is April (12.8 days).
The month with the least rainy days is August (2.2 days).
Average daylight in September /
Average sunshine in September
Lomba de Égua, 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 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
Lomba de Égua, Portugal
- Average sunshine days in September: 24.2 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is April (16.3 days).
Average UV index in September
Lomba de Égua, Portugal
- Average UV index in September: 5
The months with the highest UV index are May, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Lomba de Égua, Portugal
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Lomba de Égua, Portugal
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
