September weather forecastCathays, United Kingdom
September weather forecast for Cathays, United Kingdom: September, the first month of the autumn in Cathays, is also an enjoyable month, with an average temperature ranging between max 17.1°C (62.8°F) and min 11.4°C (52.5°F). On the first day of September in Cathays, sunrise is at 6:26 am and sunset at 7:58 pm.
September
Weather in September
September, the first month of the autumn in Cathays, is also an enjoyable month, with an average temperature ranging between max 17.1°C (62.8°F) and min 11.4°C (52.5°F).Temperature
The beginning of September records an average high-temperature of a still enjoyable 17.1°C (62.8°F), marking a negligible difference from August's 18.5°C (65.3°F). Cathays experiences a nighttime temperature average of 11.4°C (52.5°F) during September.Humidity
The average relative humidity in September in Cathays is 83%.Rainfall
In Cathays, in September, during 10 rainfall days, 17mm (0.67") of precipitation is typically accumulated. Throughout the year, there are 132.6 rainfall days, and 252mm (9.92") of precipitation is accumulated.Snowfall
In Cathays, snow does not fall in March through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:52 pm BST.
Sunshine
In Cathays, the average sunshine in September is 7.2h.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 moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cathays, United Kingdom
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in September
Cathays, United Kingdom
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in September
Cathays, United Kingdom
- Average wind speed in September: 16.3km/h
The windiest month (with the highest average wind speed) is February (22.3km/h).
The calmest months (with the lowest average wind speed) are June and July (15.2km/h).
Average humidity in September
Cathays, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are November and December (86%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in September
Cathays, United Kingdom
- Average rainfall in September: 17mm
The wettest months (with the highest rainfall) are August and November (31mm).
The driest month (with the least rainfall) is April (12mm).
Average rainfall days in September
Cathays, United Kingdom
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is November (13.5 days).
The months with the least rainy days are February and April (9.1 days).
Average snowfall in September
Cathays, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Cathays, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Cathays, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is May (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in September
Cathays, United Kingdom
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is November (13.7 days).
Average UV index in September
Cathays, 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
Cathays, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 61).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in September
Cathays, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are February, March and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October and November (9km).
