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 sea temperature 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 introduction of September sees an average high-temperature of a moderate 15.2°C (59.4°F), hardly deviating from August. Bray encounters an average temperature dip to a fresh 11.3°C (52.3°F) throughout September, subtly lower than its daytime maximum.Humidity
In Bray, the average relative humidity in September is 85%.Rainfall
In Bray, during September, the rain falls for 14.9 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, there are 200.5 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
In Bray, Ireland, snow does not fall in April through October.Sea temperature
In Bray, in September, the average water temperature is 14.8°C (58.6°F).Note: Swimming in 14.8°C (58.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in September is 12h and 40min.On the first day of the month, sunrise is at 6:35 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:03 pm IST.
Sunshine
In September, the average sunshine in Bray is 7.3h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the usual temperature for Bray in September?
What is the average humidity in September in Bray?
How many days does it rain in September in Bray?
When it does not snow in Bray?
What is the sea water temperature in September in Bray?
How many hours of daylight does Bray have in September?
What time are sunrise and sunset in September in Bray?
How long on average sun shines in September in Bray?
What are the months with the highest UV index in Bray?
How high is the UV index in September in Bray?
Average temperature in September
Bray, Ireland
- Average high temperature in September: 15.2°C
The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in September
Bray, Ireland
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in September
Bray, Ireland
- Average wind speed in September: 19.1km/h
The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).
Average humidity in September
Bray, Ireland
- Average humidity in September: 85%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).
Average rainfall in September
Bray, Ireland
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in September
Bray, Ireland
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).
Average snowfall in September
Bray, Ireland
- Average snowfall in September: 0mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Bray, Ireland
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Bray, Ireland
- Average sea temperature in September: 14.8°C
The best month for swimming (with the highest average sea temperature) is August (14.9°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).
Average daylight in September /
Average sunshine in September
Bray, Ireland
- 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: 7h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).
Average sunshine days in September
Bray, Ireland
- Average sunshine days in September: 11 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in September
Bray, Ireland
- 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, November and December (UV index 2).
Average cloud cover in September
Bray, Ireland
- Average cloud cover in September: 48
The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Bray, Ireland
- Average visibility in September: 9km
The months with the highest visibility are January, March, October and November (10km).
The months with the lowest visibility are February, April, May, June, July, August, September and December (9km).
Bray, Ireland
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