Typical Run Score
70
Good
Sydney · December
Running in Sydney in December
Typical December running conditions in Sydney — and a live Run Score so you can see how today compares with the norm.
Avg temperature
70°F
Warm
Avg dew point
61°F
Pleasant
Best window
6–8 AM
Local time
Sydney · today vs the December normTemperature · dew point · wind · timing
How December compares in Sydney
December ranks 10th of 12 months for running in Sydney, with a typical daytime Run Score of 70 (Good). For reference, the best month is June (score 90) and the hardest is January (score 67). The kindest window in December is typically 6–8 AM. Precipitation falls in roughly 16% of hours this month. Use the live tool below to see how today actually compares with the December norm.
Running weather in nearby cities
Same engine, different climate. Check the best time to run in these cities too.
Running in Sydney in December: FAQ
Is it good to run in Sydney in December?
Generally yes, with sensible timing. The typical daytime Run Score is 70 (Good), with temperatures around 70°F (21°C) and pleasant dew points. The best window is usually 6–8 AM.
How hot is it for running in Sydney in December?
Typical temperatures average 70°F (21°C) (Warm) with dew points near 61°F. Dew point — not the thermometer — usually decides how hard the run feels.
What is a good Run Score?
Scores run 0–100. 97+ is Perfect, 80–96 is Great — conditions are actively working in your favour. 65–79 (Good) is solid. 45–64 (Mixed) means at least one factor — usually heat or dew point — is taxing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Why does dew point matter more than temperature?
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
Get this on every run, automatically
RunWeather syncs with Strava, plans your week, and learns your heat tolerance — so the right time to run finds you.