September
Weather in September
Temperature
The months of August and September are noted for their peak temperatures, with an average high-temperature of 23°C (73.4°F).Rainfall
In Porto Moniz, in September, during 6 rainfall days, 39mm (1.54") of precipitation is typically accumulated. Throughout the year, there are 97 rainfall days, and 728mm (28.66") of precipitation is accumulated.Sea temperature
August through October, with an average sea temperature of 23°C (73.4°F), are months with the warmest seawater.Note: If someone is sensitive to cold, the enjoyment of swimming in 23°C (73.4°F) water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 25°C (77°F) to 28°C (82.4°F).)
Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 07:43 and sunset at 20:33. On the last day of the month, sunrise is at 08:02 and sunset at 19:54 WEST.
Sunshine
In September, the average sunshine is 7h.UV index
In September, the average daily maximum UV index is 8. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 8 in September translates into this advice:
Always take safety measures. The skin and eyes are at risk if left exposed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! UV intensity is amplified by reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
What are the temperatures in September?
How many days does it rain in September?
What are the months with the warmest sea water?
What is the water temperature in September?
How many hours of daylight does Porto Moniz have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Porto Moniz, Portugal
- Average high temperature in September: 23°C
The warmest months (with the highest average high temperature) are August and September (23°C).
The months with the lowest average high temperature are January, February, March and April (16°C).
- Average low temperature in September: 16°C
The month with the highest average low temperature is August (17°C).
The coldest months (with the lowest average low temperature) are January, February and March (10°C).
Average rainfall in September
Porto Moniz, Portugal
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is January (111mm).
The driest month (with the least rainfall) is July (8mm).
Average rainfall days in September
Porto Moniz, Portugal
- Average rainfall days in September: 6 days
The months with the highest number of rainy days are January and December (12 days).
The month with the least rainy days is July (2 days).
Average sea temperature in September
Porto Moniz, Portugal
- Average sea temperature in September: 23°C
The best months for swimming (with the highest average sea temperature) are August, September and October (23°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (18°C).
Average daylight in September /
Average sunshine in September
Porto Moniz, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 7h
The months with the most sunshine are July and August (Average sunshine: 8h).
The months with the least sunshine are January, February, November and December (Average sunshine: 5h).
Average UV index in September
Porto Moniz, Portugal
- Average UV index in September: 8
The months with the highest UV index are June, July and August (UV index 10).
The months with the lowest UV index are January and December (UV index 3).
