During my three days in the peninsula this month various producers told me it is cooler there than in Melbourne by a couple of degrees, or by up to five or six degrees. It certainly had a cool feel to it – I wore a jacket most mornings and evenings.
The altitude up on top of the main ridge running east-west across the bottom half of the peninsula is up to 300m, so a couple of degrees would make sense due to the adiabatic lapse rate.
I thought I’d run a one day, summer temperature, unscientific observation on my mid-afternoon return to Melbourne from the peninsula. Here’s what the car’s external thermometer showed:
- Temperature at Port Phillip Estate, Red Hill 18°C
- Around 10km north of PPE as we passed the turning to Yabby Lake/Moorooduc at Tuerong 20°C
- Around 20km north of PPE 22°C
- Around 35km north of PPE 24°C
- Pretty much settled at 24°C for the rest of the 90km total journey to the city’s CBD.
Interesting, I thought.