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
As Castelo de Paiva transitions into September, the average high-temperature stands at a still warm 25.3°C (77.5°F), offering little variation from the preceding month. In Castelo de Paiva, the nighttime temperature registers a significant drop from daytime peaks to an average of 12.3°C (54.1°F) in September.Humidity
In Castelo de Paiva, the average relative humidity in September is 65%.Rainfall
In September, the rain falls for 7.8 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, there are 149.8 rainfall days, and 846mm (33.31") of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 07:00 and sunset at 20:05. On the last day of the month, sunrise is at 07:29 and sunset at 19:16 WEST.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in Castelo de Paiva in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Castelo de Paiva, Portugal
- Average high temperature in September: 25.3°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (10.4°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is February (3.7°C).
Average pressure in September
Castelo de Paiva, Portugal
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Castelo de Paiva, Portugal
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is September (6.3km/h).
Average humidity in September
Castelo de Paiva, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Castelo de Paiva, Portugal
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is December (129mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in September
Castelo de Paiva, Portugal
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is April (17.1 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in September
Castelo de Paiva, Portugal
- Average snowfall in September: 0mm
The month with the highest snowfall is January (2mm).
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
Castelo de Paiva, Portugal
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 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
Castelo de Paiva, 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 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Castelo de Paiva, Portugal
- Average sunshine days in September: 20.6 days
The month with the most sunshine days is August (24.6 days).
The months with the least sunshine days are April and November (10.8 days).
Average UV index in September
Castelo de Paiva, Portugal
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Castelo de Paiva, Portugal
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Castelo de Paiva, Portugal
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January and November (7km).
