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 sea temperature 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
During September, Ponta Delgada observes a subtle ascent to a pleasant 22.6°C (72.7°F) from August's 23.2°C (73.8°F) in the average high-temperature. Ponta Delgada's temperature during September nights registers a minor decrease to an average low of 21.5°C (70.7°F).Humidity
The average relative humidity in September is 77%.Rainfall
In Ponta Delgada, in September, it is raining for 15.1 days, with typically 36mm (1.42") of accumulated precipitation. In Ponta Delgada, Portugal, during the entire year, the rain falls for 162.8 days and collects up to 525mm (20.67") of precipitation.Sea temperature
In Ponta Delgada, the average seawater temperature in September is 23.3°C (73.9°F).Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 23.3°C (73.9°F) waters. (As an aside, Olympic swimming standards dictate water temperatures from 25°C (77°F) to 28°C (82.4°F).)
Daylight
The average length of the day in September in Ponta Delgada is 12h and 25min.On the first day of the month, sunrise is at 07:13 and sunset at 20:11. On the last day of September, sunrise is at 07:37 and sunset at 19:27 +00.
Sunshine
In Ponta Delgada, the average sunshine in September is 8.1h.UV index
July through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Alert! UV radiation becomes sharper due to reflections from sand and water.
Frequently asked questions
What is the average September temperature in Ponta Delgada?
What is the average humidity in September in Ponta Delgada?
How much does it rain in Ponta Delgada in September?
How warm is the water in September in Ponta Delgada?
What is the average length of the day in September in Ponta Delgada?
When are sunrise and sunset in September in Ponta Delgada?
How long on average sun shines in September in Ponta Delgada?
When is the highest UV index in Ponta Delgada?
How high is the UV index in September in Ponta Delgada?
Average temperature in September
Ponta Delgada, Portugal
- Average high temperature in September: 22.6°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is March (16°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is August (22.1°C).
The coldest months (with the lowest average low temperature) are February and March (14.7°C).
Average pressure in September
Ponta Delgada, Portugal
- Average pressure in September: 1020.9mbar
The month with the highest atmospheric pressure is July (1024.4mbar).
The month with the lowest atmospheric pressure is October (1016.9mbar).
Average wind speed in September
Ponta Delgada, Portugal
- Average wind speed in September: 20.1km/h
The windiest month (with the highest average wind speed) is December (28.9km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in September
Ponta Delgada, Portugal
- Average humidity in September: 77%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Ponta Delgada, Portugal
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (89mm).
The driest month (with the least rainfall) is July (15mm).
Average rainfall days in September
Ponta Delgada, Portugal
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is October (19.1 days).
The month with the least rainy days is July (9.1 days).
Average sea temperature in September
Ponta Delgada, Portugal
- Average sea temperature in September: 23.3°C
The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is March (15.7°C).
Average daylight in September /
Average sunshine in September
Ponta Delgada, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are November and December (Average sunshine: 5h and 0min).
Average sunshine days in September
Ponta Delgada, Portugal
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is July (16.3 days).
The month with the least sunshine days is October (7.6 days).
Average UV index in September
Ponta Delgada, Portugal
- Average UV index in September: 6
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February and March (UV index 4).
Average cloud cover in September
Ponta Delgada, Portugal
- Average cloud cover in September: 40
The month with the most cloud cover is November (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Ponta Delgada, Portugal
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Ponta Delgada, Portugal
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