what is the average temperature in nova scotia in october
1 The average temperature in Halifax, Nova Scotia in October is quite mild at 10.5 Â°C (50.9 Â°F). 2  Afternoons can be mild with average high temperatures reaching 14 Â°C (57.2 Â°F).  Overnight temperatures are generally a little cool with an average low of 7 Â°C (44.6 Â°F).