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
September
Weather in September
Temperature
Attawapiskat's progression into September involves a minor drop in the average high-temperature, slightly receding from an enjoyable 19.9°C (67.8°F) in August to a still refreshing 15.2°C (59.4°F). An average low-temperature of 7.3°C (45.1°F) is observed during the September nights.Humidity
In September, the average relative humidity is 79%.Rainfall
In Attawapiskat, during September, the rain falls for 15.4 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, in Attawapiskat, there are 117 rainfall days, and 505mm (19.88") of precipitation is accumulated.Snowfall
In Attawapiskat, snow does not fall in July through September.Daylight
The average length of the day in September is 12h and 39min.On the first day of the month, sunrise is at 6:41 am and sunset at 8:17 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:08 pm EDT.
Sunshine
The average sunshine in September is 6.9h.UV index
In Attawapiskat, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in September leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Attawapiskat, Canada
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (-13.8°C).
- Average low temperature in September: 7.3°C
The month with the highest average low temperature is August (10.3°C).
The coldest month (with the lowest average low temperature) is January (-22.1°C).
Average pressure in September
Attawapiskat, Canada
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is March (1019.1mbar).
The month with the lowest atmospheric pressure is July (1010.2mbar).
Average wind speed in September
Attawapiskat, Canada
- Average wind speed in September: 14.3km/h
The windiest month (with the highest average wind speed) is November (14.9km/h).
The calmest months (with the lowest average wind speed) are July and August (12.1km/h).
Average humidity in September
Attawapiskat, Canada
- Average humidity in September: 79%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is June (67%).
Average rainfall in September
Attawapiskat, Canada
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is August (56mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Attawapiskat, Canada
- Average rainfall days in September: 15.4 days
The months with the highest number of rainy days are July and August (17.4 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in September
Attawapiskat, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is December (227mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Attawapiskat, Canada
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (22.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Attawapiskat, Canada
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 1h and 30min).
Average sunshine days in September
Attawapiskat, Canada
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is June (15.3 days).
The month with the least sunshine days is March (6.9 days).
Average UV index in September
Attawapiskat, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Attawapiskat, Canada
- Average cloud cover in September: 48
The months with the most cloud cover are January and February (Cloud cover 86).
The month with the least cloud cover is June (Cloud cover 39).
Average visibility in September
Attawapiskat, Canada
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (5km).
