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 ushers in a minute temperature change, with average high-temperatures reducing from August's warm 77.7°F (25.4°C) to an agreeable 70.5°F (21.4°C). In Halifax, the average nighttime temperature during September is a refreshing 58.5°F (14.7°C).Humidity
In Halifax, the average relative humidity in September is 78%.Rainfall
The months with the least rainfall are February and September Rain falls for 10 days and accumulates 0.91" (23mm) of rain.Snowfall
In Halifax, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Halifax, sunrise is at 6:09 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.
Sunshine
In Halifax, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Halifax in September?
What is the average humidity in September in Halifax?
What is the driest month in Halifax?
How many days does it rain in September in Halifax?
When it does not snow in Halifax?
What is the average length of the day in September in Halifax?
When are sunrise and sunset in September in Halifax?
How long on average sun shines in September in Halifax?
What is the UV index intensity in September in Halifax?
Average temperature in September
Halifax, MA
- Average high temperature in September: 70.5°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Halifax, MA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Halifax, MA
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Halifax, MA
- Average humidity in September: 78%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Halifax, MA
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is July (1.46").
The driest months (with the least rainfall) are February and September (0.91").
Average rainfall days in September
Halifax, MA
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is July (13.2 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in September
Halifax, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Halifax, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6 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
Halifax, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Halifax, MA
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (14.9 days).
Average UV index in September
Halifax, MA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Halifax, MA
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Halifax, MA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Halifax, Massachusetts, USA
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