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
September
Weather in September
Temperature
Estoi, Portugal, in September experiences a gentle temperature dip, with average high-temperatures reducing from 29°C (84.2°F) in August to a still warm 25.9°C (78.6°F). Estoi observes an average low-temperature of 18.8°C (65.8°F) during September.Humidity
In Estoi, Portugal, the average relative humidity in September is 65%.Rainfall
In Estoi, in September, it is raining for 3 days, with typically 3mm (0.12") of accumulated precipitation. Throughout the year, there are 49.6 rainfall days, and 65mm (2.56") of precipitation is accumulated.Sea temperature
In Estoi, in September, the average water temperature is 21°C (69.8°F).Note: In water with a temperature of 21°C (69.8°F), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Estoi, the average length of the day in September is 12h and 25min.On the first day of September in Estoi, sunrise is at 07:02 and sunset at 20:00. On the last day of the month, sunrise is at 07:26 and sunset at 19:16 WEST.
Sunshine
In September, the average sunshine is 9.6h.UV index
May through September, with an average maximum UV index of 6, are months with the highest UV index in Estoi. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Estoi?
What is the average humidity in September in Estoi?
How much does it rain in Estoi in September?
How cold is the water in September in Estoi?
How many hours of daylight does Estoi have in September?
What time are sunrise and sunset in September in Estoi?
How long on average sun shines in September in Estoi?
What are the months with the highest UV index in Estoi?
What is the UV index reading in September in Estoi?
Average temperature in September
Estoi, Portugal
- Average high temperature in September: 25.9°C
The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (14.8°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is August (19.9°C).
The coldest months (with the lowest average low temperature) are January and February (9.8°C).
Average pressure in September
Estoi, Portugal
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Estoi, Portugal
- Average wind speed in September: 11.6km/h
The windiest months (with the highest average wind speed) are February and March (17.1km/h).
The calmest month (with the lowest average wind speed) is September (11.6km/h).
Average humidity in September
Estoi, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (76%).
The months with the lowest relative humidity are July and August (59%).
Average rainfall in September
Estoi, Portugal
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is April (12mm).
The driest month (with the least rainfall) is July (0mm).
Average rainfall days in September
Estoi, Portugal
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is April (8.3 days).
The month with the least rainy days is August (0.6 days).
Average sea temperature in September
Estoi, Portugal
- Average sea temperature in September: 21°C
The best month for swimming (with the highest average sea temperature) is August (22°C).
The coldest months (with the lowest average sea temperature) are January, February and March (16°C).
Average daylight in September /
Average sunshine in September
Estoi, 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 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Estoi, Portugal
- Average sunshine days in September: 25.6 days
The month with the most sunshine days is July (29.5 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in September
Estoi, Portugal
- Average UV index in September: 6
The months with the highest UV index are May, June, July, August and September (UV index 6).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Estoi, Portugal
- Average cloud cover in September: 14
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Estoi, 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).
