Griffith in September
So, what's Griffith actually like in September? In a word: mild. It's spring, and the days are averaging 19.9 degrees.
Daytime highs average 19.9 degrees, dropping to 8.0 degrees overnight. That's a 12-degree swing between day and night. Manageable with a decent layer, and you'll warm up by midday.
September is 3.9 degrees cooler than Griffith's yearly average.
You're looking at 25mm of rain across 4 days in a typical September. Light enough that it won't ruin your plans.
Solar exposure averages 18.4 MJ/m2 per day in September, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.
The Comfort Score for September comes in at 7.8/10, solidly pleasant.
For your suitcase: layers you can peel on and off, and SPF 50+ sunscreen and a hat.
Check the data table below for the full picture, or compare Griffith in September with another destination.
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
- Layered clothing for mild to cool conditions
- A warm jumper or fleece for cool mornings and evenings
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How September in Griffith stacks up against major cities around the world.
About 0 degrees cooler and considerably drier.
About 6 degrees cooler and considerably drier.
About 7 degrees cooler and considerably drier.
How September Compares
Griffith's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 31.0 | 19.2 | 71mm | 5.8 |
| Feb | 32.7 | 18.5 | 37mm | 5.1 |
| Mar | 30.8 | 17.2 | 26mm | 6.3 |
| Apr | 21.8 | 10.3 | 50mm | 8.6 |
| May | 18.3 | 7.8 | 103mm | 5.4 |
| Jun | 14.1 | 4.7 | 20mm | 2.4 |
| Jul | 13.8 | 5.3 | 35mm | 2.2 |
| Aug | 17.9 | 7.3 | 29mm | 5.7 |
| Sep | 19.9 | 8.0 | 25mm | 7.8 |
| Oct | 24.5 | 11.5 | 23mm | 10.0 |
| Nov | 29.7 | 15.7 | 81mm | 6.6 |
| Dec | 31.7 | 17.8 | 26mm | 5.8 |