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
Weather in September
Temperature
Portessie signifies an average high-temperature of a still refreshing 14°C (57.2°F) in September, closely mirroring the 15.6°C (60.1°F) of August. Portessie's nighttime temperatures in September reveal a minimal variation from the daytime highs, averaging at a chilly 9.9°C (49.8°F).Humidity
June through September, with an average relative humidity of 84%, are the most humid months.Rainfall
In Portessie, during September, the rain falls for 6.3 days and regularly aggregates up to 7mm (0.28") of precipitation. In Portessie, during the entire year, the rain falls for 84.4 days and collects up to 103mm (4.06") of precipitation.Snowfall
In Portessie, snow does not fall in May through December.Daylight
In Portessie, United Kingdom, the average length of the day in September is 12h and 47min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:09 pm. On the last day of September, in Portessie, sunrise is at 7:14 am and sunset at 6:48 pm BST.
Sunshine
The average sunshine in September in Portessie is 6.8h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Portessie?
What are the most humid months in Portessie?
What is the average humidity in September in Portessie?
How much does it rain in Portessie in September?
When it does not snow in Portessie?
How many hours of daylight does Portessie have in September?
What time are sunrise and sunset in September in Portessie?
How long on average sun shines in September in Portessie?
What is the month with the highest UV index in Portessie?
How high is the UV index in September in Portessie?
Average temperature in September
Portessie, United Kingdom
- Average high temperature in September: 14°C
The warmest months (with the highest average high temperature) are July and August (15.6°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is August (11.1°C).
The coldest months (with the lowest average low temperature) are January and February (3°C).
Average pressure in September
Portessie, United Kingdom
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1005.6mbar).
Average wind speed in September
Portessie, United Kingdom
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is January (26.6km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Portessie, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are June, July, August and September (84%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Portessie, United Kingdom
- Average rainfall in September: 7mm
The wettest month (with the highest rainfall) is July (14mm).
The driest month (with the least rainfall) is April (5mm).
Average rainfall days in September
Portessie, United Kingdom
- Average rainfall days in September: 6.3 days
The month with the highest number of rainy days is July (10.4 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Portessie, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Portessie, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Portessie, United Kingdom
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 12min).
Average sunshine days in September
Portessie, United Kingdom
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is December (23 days).
The month with the least sunshine days is June (15.3 days).
Average UV index in September
Portessie, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Portessie, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is June (Cloud cover 59).
The months with the least cloud cover are April, May, August, September and December (Cloud cover 53).
Average visibility in September
Portessie, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (10km).
The months with the lowest visibility are May and July (9km).
Portessie, United Kingdom
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