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 snowfall in September
- Average snowfall 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
September's onset introduces a mild reduction in the average high-temperature, from a tropical 32.8°C (91°F) in August to a warm 28.6°C (83.5°F). Monfortinho registers a substantial downturn from daytime peaks throughout September nights, with an average low-temperature of 15.4°C (59.7°F).Heat index
September's heat index is calculated to be 29°C (84.2°F). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Monfortinho, the average relative humidity in September is 49%.Rainfall
In Monfortinho, in September, it is raining for 5.2 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, there are 97.2 rainfall days, and 371mm (14.61") of precipitation is accumulated.Snowfall
In Monfortinho, snow does not fall in February through December.Daylight
The average length of the day in September in Monfortinho is 12h and 27min.On the first day of the month, sunrise is at 06:56 and sunset at 19:59. On the last day of September, sunrise is at 07:23 and sunset at 19:11 WEST.
Sunshine
In Monfortinho, the average sunshine in September is 9.4h.UV index
In Monfortinho, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Monfortinho during September?
What is the average humidity in September in Monfortinho?
How many days does it rain in September in Monfortinho?
When it does not snow in Monfortinho?
What is the average length of the day in September in Monfortinho?
When is the sunrise / sunset in September in Monfortinho?
How long on average sun shines in September in Monfortinho?
What is the UV index intensity in September in Monfortinho?
Average temperature in September
Monfortinho, Portugal
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in September: 15.4°C
The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).
Average pressure in September
Monfortinho, Portugal
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Monfortinho, Portugal
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity in September
Monfortinho, Portugal
- Average humidity in September: 49%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).
Average rainfall in September
Monfortinho, Portugal
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).
Average rainfall days in September
Monfortinho, Portugal
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).
Average snowfall in September
Monfortinho, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Monfortinho, Portugal
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and March (0.1 days).
The months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Monfortinho, 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 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Monfortinho, Portugal
- Average sunshine days in September: 23.3 days
The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).
Average UV index in September
Monfortinho, Portugal
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Monfortinho, Portugal
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in September
Monfortinho, Portugal
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
