Hay in December
So, what's Hay actually like in December? In a word: golden. It's summer, and the days are averaging 32.0 degrees.
Daytime highs average 32.0 degrees, dropping to 17.9 degrees overnight. That's a 14-degree swing between day and night. That's solidly pleasant territory. Great for being outdoors.
At 32.0 degrees, December runs 8.1 degrees above Hay's annual average of 23.9 degrees.
The rain data says 17mm over 3 days. That's barely a sprinkle.
Sunshine-wise, December delivers around 30.6 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.
The Comfort Score is 5.6/10 for December. It's fine, but not the highlight of the calendar.
For your suitcase: light, breathable clothing, something warmer for mornings and evenings, and serious sun protection.
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
- Light, breathable clothing and a wide-brimmed hat
- Strong sun protection including a hat and SPF 50+
Coming From Overseas?
How December in Hay stacks up against major cities around the world.
About 24 degrees warmer and considerably drier.
About 26 degrees warmer and considerably drier.
About 20 degrees warmer and considerably drier.
How December Compares
Hay's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 30.6 | 19.1 | 97mm | 5.8 |
| Feb | 33.0 | 18.7 | 7mm | 5.1 |
| Mar | 30.6 | 17.4 | 44mm | 6.3 |
| Apr | 21.5 | 10.5 | 34mm | 8.6 |
| May | 18.0 | 8.0 | 101mm | 5.1 |
| Jun | 13.8 | 5.0 | 16mm | 2.4 |
| Jul | 14.1 | 5.5 | 22mm | 2.6 |
| Aug | 18.2 | 7.7 | 17mm | 6.0 |
| Sep | 20.2 | 8.4 | 21mm | 8.1 |
| Oct | 24.9 | 12.0 | 33mm | 10.0 |
| Nov | 29.5 | 16.0 | 30mm | 7.2 |
| Dec | 32.0 | 17.9 | 17mm | 5.6 |