September weather forecastGriñón, Spain
September
Weather in September
September, the first month of the autumn in Griñón, is also a moderately hot month, with temperature in the range of an average low of 16°C (60.8°F) and an average high of 27.4°C (81.3°F).Temperature
The shift from August to September corresponds with a decrease in the average high-temperature, down to a moderately hot 27.4°C (81.3°F) from a tropical 32.6°C (90.7°F). Nighttime temperatures in September average to an enjoyable 16°C (60.8°F).Heat index
The heat index for September is calculated to be 27°C (80.6°F). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
In September, the average relative humidity is 43%.Rainfall
In Griñón, in September, it is raining for 4.9 days, with typically 15mm (0.59") of accumulated precipitation. In Griñón, during the entire year, the rain falls for 94.5 days and collects up to 263mm (10.35") of precipitation.Snowfall
April through October are months without snowfall in Griñón.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 07:43 and sunset at 20:47. On the last day of September, in Griñón, Spain, sunrise is at 08:11 and sunset at 19:59 CEST.
Sunshine
The average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Griñón is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Griñón, Spain
- Average high temperature in September: 27.4°C
The warmest month (with the highest average high temperature) is July (33.1°C).
The month with the lowest average high temperature is January (10°C).
- Average low temperature in September: 16°C
The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in September
Griñón, Spain
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1023.6mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Griñón, Spain
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is February (13.1km/h).
The calmest month (with the lowest average wind speed) is September (9.4km/h).
Average humidity in September
Griñón, Spain
- Average humidity in September: 43%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is July (32%).
Average rainfall in September
Griñón, Spain
- Average rainfall in September: 15mm
The wettest month (with the highest rainfall) is April (46mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Griñón, Spain
- Average rainfall days in September: 4.9 days
The month with the highest number of rainy days is April (13.9 days).
The month with the least rainy days is August (2.1 days).
Average snowfall in September
Griñón, Spain
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Griñón, Spain
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Griñón, Spain
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Griñón, Spain
- Average sunshine days in September: 23.4 days
The month with the most sunshine days is August (27.2 days).
The month with the least sunshine days is April (14.1 days).
Average UV index in September
Griñón, Spain
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Griñón, Spain
- Average cloud cover in September: 14
The months with the most cloud cover are January and November (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Griñón, Spain
- Average visibility in September: 10km
The months with the highest visibility are February, March, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and April (9km).
