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
The commencement of September brings an average high-temperature of a mild 15.3°C (59.5°F), marking an inconsequential divergence from August. The low temperature average in Llandudno Junction during September reflects a slight decrease to a cool 11.5°C (52.7°F) from the day's peak.Humidity
In September, the average relative humidity is 84%.Rainfall
In Llandudno Junction, during September, the rain falls for 17.9 days and regularly aggregates up to 45mm (1.77") of precipitation. In Llandudno Junction, during the entire year, the rain falls for 228.5 days and collects up to 604mm (23.78") of precipitation.Snowfall
In Llandudno Junction, United Kingdom, snow does not fall in May through October.Daylight
In Llandudno Junction, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:25 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:16 am and sunset at 6:54 pm BST.
Sunshine
The average sunshine in September in Llandudno Junction is 6.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are the temperatures in Llandudno Junction in September?
What is the average humidity in September in Llandudno Junction?
How many days does it rain in September in Llandudno Junction?
When it does not snow in Llandudno Junction?
How many hours of daylight does Llandudno Junction have in September?
When are sunrise and sunset in September in Llandudno Junction?
How long on average sun shines in September in Llandudno Junction?
What are the months with the highest UV index in Llandudno Junction?
How high is the UV index in September in Llandudno Junction?
Average temperature in September
Llandudno Junction, United Kingdom
- Average high temperature in September: 15.3°C
The warmest month (with the highest average high temperature) is July (16.9°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (3.8°C).
Average pressure in September
Llandudno Junction, United Kingdom
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in September
Llandudno Junction, United Kingdom
- Average wind speed in September: 17.9km/h
The windiest month (with the highest average wind speed) is December (23.8km/h).
The calmest month (with the lowest average wind speed) is June (14.4km/h).
Average humidity in September
Llandudno Junction, United Kingdom
- Average humidity in September: 84%
The months with the highest relative humidity are January and August (85%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in September
Llandudno Junction, United Kingdom
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is November (68mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in September
Llandudno Junction, United Kingdom
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is February (15.8 days).
Average snowfall in September
Llandudno Junction, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Llandudno Junction, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Llandudno Junction, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 6h and 3min
The months with the most sunshine are May and June (Average sunshine: 7h and 42min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in September
Llandudno Junction, United Kingdom
- Average sunshine days in September: 8.5 days
The months with the most sunshine days are March and May (11 days).
The month with the least sunshine days is November (5.2 days).
Average UV index in September
Llandudno Junction, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are May, 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
Llandudno Junction, United Kingdom
- Average cloud cover in September: 55
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is May (Cloud cover 49).
Average visibility in September
Llandudno Junction, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, September and October (10km).
The months with the lowest visibility are January, February, April, May, June, July, August, November and December (9km).
Llandudno Junction, United Kingdom
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