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
September reports an average high-temperature of a mild 15.4°C (59.7°F), slightly varied from August's 17.2°C (63°F). Collinstown experiences a nighttime temperature average of 8.3°C (46.9°F) during September.Humidity
The average relative humidity in September in Collinstown, Ireland, is 90%.Rainfall
In Collinstown, during September, the rain falls for 10.6 days and regularly aggregates up to 18mm (0.71") of precipitation. Throughout the year, in Collinstown, Ireland, there are 153.9 rainfall days, and 280mm (11.02") of precipitation is accumulated.Snowfall
In Collinstown, snow does not fall in May through October.Daylight
In Collinstown, Ireland, the average length of the day in September is 12h and 41min.On the first day of September in Collinstown, sunrise is at 6:38 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:07 pm IST.
Sunshine
In September, the average sunshine is 5.2h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the temperature in September in Collinstown?
What is the average humidity in September in Collinstown?
How many days does it rain in September in Collinstown?
When it does not snow in Collinstown?
How many hours of daylight does Collinstown have in September?
When is the sunrise / sunset in September in Collinstown?
How long on average sun shines in September in Collinstown?
What is the UV index intensity in September in Collinstown?
Average temperature in September
Collinstown, Ireland
- Average high temperature in September: 15.4°C
The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is December (6.9°C).
- Average low temperature in September: 8.3°C
The month with the highest average low temperature is July (10.3°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in September
Collinstown, Ireland
- Average pressure in September: 1015mbar
The month with the highest atmospheric pressure is May (1015.8mbar).
The month with the lowest atmospheric pressure is November (1007.9mbar).
Average wind speed in September
Collinstown, Ireland
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is January (19.5km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in September
Collinstown, Ireland
- Average humidity in September: 90%
The month with the highest relative humidity is December (92%).
The month with the lowest relative humidity is April (85%).
Average rainfall in September
Collinstown, Ireland
- Average rainfall in September: 18mm
The wettest month (with the highest rainfall) is November (32mm).
The driest month (with the least rainfall) is October (16mm).
Average rainfall days in September
Collinstown, Ireland
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is July (16.5 days).
The months with the least rainy days are February and September (10.6 days).
Average snowfall in September
Collinstown, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Collinstown, Ireland
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Collinstown, Ireland
- Average daylight in September: 12h and 4min
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 36min).
- Average sunshine in September: 5h and 1min
The month with the most sunshine is June (Average sunshine: 6h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Collinstown, Ireland
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Collinstown, Ireland
- Average UV index in September: 3
The months with the highest UV index are June, July and August (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
Collinstown, Ireland
- Average cloud cover in September: 65
The month with the most cloud cover is July (Cloud cover 71).
The months with the least cloud cover are April, November and December (Cloud cover 61).
Average visibility in September
Collinstown, Ireland
- Average visibility in September: 8km
The months with the highest visibility are January, February, March and December (9km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (8km).
Collinstown, Ireland
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