September weather forecastBonavista, Canada
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Bonavista, Canada, with temperature in the range of an average high of 17.1°C (62.8°F) and an average low of 7.7°C (45.9°F).Temperature
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's agreeable 21.8°C (71.2°F) to a refreshing 17.1°C (62.8°F). In September, Bonavista records an average nighttime temperature of 7.7°C (45.9°F).Humidity
In Bonavista, the average relative humidity in September is 81%.Rainfall
In Bonavista, in September, it is raining for 15.3 days, with typically 61mm (2.4") of accumulated precipitation. In Bonavista, during the entire year, the rain falls for 154.8 days and collects up to 785mm (30.91") of precipitation.Snowfall
July through September are months without snowfall in Bonavista.Sea temperature
In September, the average sea temperature is 11.7°C (53.1°F).Note: Swimming in 11.7°C (53.1°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
In Bonavista, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 6:20 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:42 pm NDT.
Sunshine
The average sunshine in September in Bonavista is 6.5h.UV index
In Bonavista, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 3 in September suggests the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bonavista, Canada
- Average high temperature in September: 17.1°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The months with the lowest average high temperature are January and February (-2.8°C).
- Average low temperature in September: 7.7°C
The month with the highest average low temperature is August (11.9°C).
The coldest month (with the lowest average low temperature) is February (-10.4°C).
Average pressure in September
Bonavista, Canada
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is February (1007.7mbar).
Average wind speed in September
Bonavista, Canada
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is August (12.4km/h).
Average humidity in September
Bonavista, Canada
- Average humidity in September: 81%
The months with the highest relative humidity are January and March (92%).
The months with the lowest relative humidity are June and July (79%).
Average rainfall in September
Bonavista, Canada
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Bonavista, Canada
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is August (18.7 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Bonavista, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (262mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in September
Bonavista, Canada
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Bonavista, Canada
- Average sea temperature in September: 11.7°C
The best month for swimming (with the highest average sea temperature) is August (13.7°C).
The coldest month (with the lowest average sea temperature) is March (-0.9°C).
Average daylight in September /
Average sunshine in September
Bonavista, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 6h and 30min
The months with the most sunshine are July and August (Average sunshine: 7h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Bonavista, Canada
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is September (11.3 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in September
Bonavista, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Bonavista, Canada
- Average cloud cover in September: 53
The month with the most cloud cover is March (Cloud cover 75).
The month with the least cloud cover is September (Cloud cover 53).
Average visibility in September
Bonavista, Canada
- Average visibility in September: 9km
The month with the highest visibility is September (9km).
The months with the lowest visibility are January, February, March and April (7km).





