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 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
The arrival of September records an average high-temperature of a moderately hot 28.2°C (82.8°F), closely related to the 30.1°C (86.2°F) observed in August. Ota documents a significant temperature variance in September, with the mean nighttime lows settling at a mild 15.8°C (60.4°F).Heat index
The heat index value for September is evaluated at a hot 30°C (86°F). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In September, the average relative humidity in Ota, Portugal, is 65%.Rainfall
In Ota, during September, the rain falls for 5.3 days and regularly aggregates up to 16mm (0.63") of precipitation. Throughout the year, in Ota, there are 97.3 rainfall days, and 310mm (12.2") of precipitation is accumulated.Daylight
In Ota, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:05 and sunset at 20:06. On the last day of September, sunrise is at 07:31 and sunset at 19:20 WEST.
Sunshine
In September, the average sunshine in Ota, Portugal, is 9.2h.UV index
In Ota, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Ota?
What is the average humidity in September in Ota?
How much does it rain in Ota in September?
What is the average length of the day in September in Ota?
When are sunrise and sunset in September in Ota?
How long on average sun shines in September in Ota?
What is the UV index reading in September in Ota?
Average temperature in September
Ota, Portugal
- Average high temperature in September: 28.2°C
The warmest month (with the highest average high temperature) is August (30.1°C).
The month with the lowest average high temperature is January (14.6°C).
- Average low temperature in September: 15.8°C
The month with the highest average low temperature is July (16.5°C).
The coldest month (with the lowest average low temperature) is February (7.7°C).
Average pressure in September
Ota, Portugal
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Ota, Portugal
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is July (14.2km/h).
The calmest month (with the lowest average wind speed) is October (11km/h).
Average humidity in September
Ota, Portugal
- Average humidity in September: 65%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Ota, Portugal
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Ota, Portugal
- Average rainfall days in September: 5.3 days
The month with the highest number of rainy days is April (12.8 days).
The month with the least rainy days is July (2.2 days).
Average daylight in September /
Average sunshine in September
Ota, Portugal
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Ota, Portugal
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is April (15.8 days).
Average UV index in September
Ota, Portugal
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Ota, Portugal
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Ota, Portugal
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).
