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
Weather in September
Temperature
With the onset of September, the average high-temperature stands at a still warm 25.8°C (78.4°F), closely aligned with August's 27.7°C (81.9°F). Martim's nighttime temperatures in September reflect a stark contrast to the day's highs, falling to an average low of 13.8°C (56.8°F).Humidity
The average relative humidity in September is 65%.Rainfall
In Martim, in September, it is raining for 7.4 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, there are 139.7 rainfall days, and 924mm (36.38") of precipitation is accumulated.Snowfall
February through December are months without snowfall in Martim, Portugal.Daylight
In Martim, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 07:00 and sunset at 20:07. On the last day of September, sunrise is at 07:30 and sunset at 19:17 WEST.
Sunshine
The average sunshine in September in Martim is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What are September temperatures in Martim?
What is the average humidity in September in Martim?
How many days does it rain in September in Martim?
When it does not snow in Martim?
How many hours of daylight does Martim have in September?
What time are sunrise and sunset in September in Martim?
How long on average sun shines in September in Martim?
What is the UV index intensity in September in Martim?
Average temperature in September
Martim, Portugal
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (11.8°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in September
Martim, Portugal
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1022.4mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Martim, Portugal
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in September
Martim, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Martim, Portugal
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (136mm).
The driest month (with the least rainfall) is July (11mm).
Average rainfall days in September
Martim, Portugal
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is January (15.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in September
Martim, 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
Martim, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Martim, Portugal
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Martim, Portugal
- Average sunshine days in September: 20.9 days
The month with the most sunshine days is August (24.4 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Martim, Portugal
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
Martim, Portugal
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
Martim, Portugal
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
Martim, Portugal
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