The temperatures in Fairfax in October are usually low and can range between 11°C and 20°C.
You can expect about 3 to 8 days of rain in Fairfax during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Fairfax in October 2025.
If you’re planning to visit Fairfax in the near future, we highly recommend that you review the 14 day weather forecast for Fairfax before you arrive.
Temperatures
20° / 11°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
143
mm
Sun Hours
9.6
Hrs
