Seventeen Seventy in September
September in Seventeen Seventy is peak spring, and the weather reflects it. You're looking at average daily highs of 24.9 degrees.
Expect the mercury to hit around 24.9 degrees during the day and settle at 17.0 degrees after dark. The temperature stays pretty consistent through the day. That's solidly pleasant territory. Great for being outdoors.
September is 1.0 degrees cooler than Seventeen Seventy's yearly average.
The rain data says 4mm over 1 days. That's barely a sprinkle.
Solar exposure averages 20.5 MJ/m2 per day in September, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
Our Comfort Score rates September at 10.0/10. That's about as good as it gets.
Packing tip: bring a mix of short and long sleeves, and serious sun protection.
Scroll down for the detailed climate data, or explore what nearby cities are like in September.
September at a Glance
Temperature Range
Daily temperature range in September. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- T-shirts and shorts for daytime
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How September in Seventeen Seventy stacks up against major cities around the world.
About 5 degrees warmer and considerably drier.
About 1 degrees cooler and considerably drier.
About 2 degrees cooler and considerably drier.
How September Compares
Seventeen Seventy's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.8 | 24.1 | 141mm | 4.5 |
| Feb | 29.6 | 23.0 | 76mm | 6.2 |
| Mar | 27.9 | 22.0 | 170mm | 5.8 |
| Apr | 25.8 | 19.2 | 156mm | 7.3 |
| May | 23.7 | 16.8 | 62mm | 9.2 |
| Jun | 22.0 | 13.0 | 48mm | 8.6 |
| Jul | 21.4 | 12.9 | 30mm | 8.3 |
| Aug | 22.9 | 15.3 | 137mm | 8.6 |
| Sep | 24.9 | 17.0 | 4mm | 10.0 |
| Oct | 25.9 | 19.4 | 31mm | 9.4 |
| Nov | 28.2 | 21.9 | 62mm | 7.4 |
| Dec | 29.1 | 22.5 | 247mm | 5.3 |