Atherton in December
December in Atherton is peak summer, and the weather reflects it. You're looking at average daily highs of 28.2 degrees.
The average daily maximum is 28.2 degrees with overnight lows of 19.5 degrees. Comfortable during the day, with evenings that invite a light layer.
At 28.2 degrees, December runs 3.4 degrees above Atherton's annual average of 24.8 degrees.
The rain data says 382mm over 25 days. That's serious rainfall.
Sunshine-wise, December delivers around 21.4 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
At 5.8/10 on the Comfort Score, December is middle of the road.
For your suitcase: t-shirts with a light layer for evenings, waterproof gear, and SPF 50+ sunscreen and a hat.
Scroll down for the detailed climate data, or explore what nearby cities are like in December.
December at a Glance
Temperature Range
Daily temperature range in December. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- T-shirts and shorts for daytime
- Proper rain gear for frequent showers
- Strong sun protection including a hat and SPF 50+
Coming From Overseas?
How December in Atherton stacks up against major cities around the world.
About 20 degrees warmer and considerably wetter.
About 22 degrees warmer and considerably wetter.
About 16 degrees warmer and considerably wetter.
How December Compares
Atherton's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 27.5 | 20.4 | 418mm | 5.6 |
| Feb | 26.8 | 20.2 | 182mm | 5.8 |
| Mar | 25.8 | 19.7 | 245mm | 6.3 |
| Apr | 24.2 | 17.6 | 76mm | 8.8 |
| May | 21.8 | 16.1 | 36mm | 7.3 |
| Jun | 22.5 | 12.7 | 11mm | 9.5 |
| Jul | 20.3 | 12.2 | 14mm | 7.5 |
| Aug | 22.3 | 13.3 | 14mm | 9.3 |
| Sep | 23.3 | 14.9 | 43mm | 9.7 |
| Oct | 26.6 | 16.1 | 10mm | 9.5 |
| Nov | 28.1 | 17.2 | 61mm | 8.0 |
| Dec | 28.2 | 19.5 | 382mm | 5.8 |