September weather forecastCastleplunket, Ireland
September
Weather in September
September, the first month of the autumn in Castleplunket, is still a refreshing month, with an average temperature ranging between min 8.8°C (47.8°F) and max 15.5°C (59.9°F).Temperature
The introduction of September notes a subtle temperature variation to a mild 15.5°C (59.9°F) from August's 17.1°C (62.8°F). Castleplunket's temperature lowers to a mean of 8.8°C (47.8°F) during the nights in September.Humidity
In Castleplunket, the average relative humidity in September is 89%.Rainfall
September is the month with the least rainfall in Castleplunket. Rain falls for 13.7 days and accumulates 21mm (0.83") of precipitation.Snowfall
In Castleplunket, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 6:43 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:11 pm IST.
Sunshine
The average sunshine in September is 5.2h.UV index
The average daily maximum UV index in September in Castleplunket is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 in September translates into this advice:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castleplunket, Ireland
- Average high temperature in September: 15.5°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 8.8°C
The month with the highest average low temperature is July (10.5°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in September
Castleplunket, Ireland
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1007.6mbar).
Average wind speed in September
Castleplunket, Ireland
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is January (19.3km/h).
The calmest month (with the lowest average wind speed) is July (13.1km/h).
Average humidity in September
Castleplunket, Ireland
- Average humidity in September: 89%
The months with the highest relative humidity are November and December (91%).
The month with the lowest relative humidity is April (85%).
Average rainfall in September
Castleplunket, Ireland
- Average rainfall in September: 21mm
The wettest month (with the highest rainfall) is August (45mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in September
Castleplunket, Ireland
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (13.1 days).
Average snowfall in September
Castleplunket, Ireland
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (12mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Castleplunket, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Castleplunket, Ireland
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in September: 5h and 12min
The month with the most sunshine is June (Average sunshine: 6h and 42min).
The months with the least sunshine are January, February, October and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Castleplunket, Ireland
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is April (12.3 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in September
Castleplunket, Ireland
- Average UV index in September: 3
The month with the highest UV index is June (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
Castleplunket, Ireland
- Average cloud cover in September: 65
The months with the most cloud cover are July and August (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 60).
Average visibility in September
Castleplunket, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March and December (9km).
The month with the lowest visibility is July (7km).
