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 transition into September notes an average high-temperature of a still warm 27.7°C (81.9°F), revealing a mild distinction from the 29.8°C (85.6°F) in August. During September, Fátima's temperature records a considerable difference from its daily highs to an average low of 14.5°C (58.1°F).Heat index
For September, the heat index is calculated to be a tropical 30°C (86°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.For clarity, heat index numbers account for light winds and areas under shade. 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 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In Fátima, the average relative humidity in September is 65%.Rainfall
In Fátima, Portugal, in September, it is raining for 5.2 days, with typically 16mm (0.63") of accumulated precipitation. In Fátima, during the entire year, the rain falls for 103 days and collects up to 356mm (14.02") of precipitation.Daylight
In September, the average length of the day in Fátima 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
In Fátima, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Defending against sun damage is advocated. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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
Fátima, 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).
