Grafton in January
January is right in the heart of summer for Grafton, and the weather has a definite personality this time of year.
Daytime highs average 29.6 degrees, dropping to 21.4 degrees overnight. That's a 8-degree swing between day and night. The warmth sticks around even after dark.
January is 4.4 degrees warmer than the yearly average here.
Rainfall in January averages 136mm over about 15 days. That means roughly a 50% chance of rain on any given day, so definitely bring rain gear.
Solar exposure averages 20.6 MJ/m2 per day in January, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
The Comfort Score is 5.6/10 for January. It's fine, but not the highlight of the calendar.
For your suitcase: a mix of short and long sleeves, a rain jacket or compact umbrella, and SPF 50+ sunscreen and a hat.
Scroll down for the detailed climate data, or explore what nearby cities are like in January.
January at a Glance
Temperature Range
Daily temperature range in January. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Comfortable casual wear suitable for warm days
- A waterproof jacket or compact umbrella
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How January in Grafton stacks up against major cities around the world.
About 22 degrees warmer and considerably wetter.
About 26 degrees warmer and considerably wetter.
About 20 degrees warmer and considerably wetter.
How January Compares
Grafton's monthly climate at a glance. January is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.6 | 21.4 | 136mm | 5.6 |
| Feb | 30.0 | 21.2 | 68mm | 6.2 |
| Mar | 26.9 | 19.2 | 92mm | 7.3 |
| Apr | 25.1 | 16.0 | 104mm | 8.7 |
| May | 21.4 | 12.6 | 50mm | 7.3 |
| Jun | 19.5 | 9.1 | 36mm | 6.7 |
| Jul | 19.2 | 9.2 | 33mm | 6.3 |
| Aug | 22.9 | 11.4 | 87mm | 8.8 |
| Sep | 24.7 | 11.8 | 103mm | 9.5 |
| Oct | 25.7 | 14.5 | 60mm | 9.2 |
| Nov | 27.7 | 18.7 | 160mm | 6.7 |
| Dec | 30.2 | 19.9 | 90mm | 6.0 |