Gilroy in September
9.1out of 10
Yes, a good time to go
Warm and comfortable: highs around 26°C. Very dry: about 0 rainy days.
26°CAvg high
13°CAvg low
0Rainy days (1 mm)
12:13 hDaylight
06:54Sunrise · 19:07 Sunset
Why this score
- Warm and comfortable: highs around 26°C
- Very dry: about 0 rainy days
What to wear and pack
- T-shirts and light layers
- A light jacket for cooler evenings
- Shorts or a light skirt
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (0.4 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 15°C | 5°C | 87 mm | 8 | – | – | 6.9 |
| February | 16°C | 6°C | 86 mm | 8 | – | – | 7.0 |
| March | 18°C | 7°C | 64 mm | 8 | – | – | 7.4 |
| April | 20°C | 8°C | 28 mm | 5 | – | – | 8.1 |
| May | 22°C | 10°C | 14 mm | 3 | – | – | 8.7 |
| June | 24°C | 12°C | 2 mm | 1 | – | – | 9.0 |
| July | 26°C | 14°C | 1 mm | 0 | – | – | 9.1 |
| August | 27°C | 14°C | 1 mm | 0 | – | – | 9.1 |
| September | 26°C | 13°C | 1 mm | 0 | – | – | 9.1 |
| October | 23°C | 11°C | 17 mm | 2 | – | – | 8.8 |
| November | 18°C | 7°C | 36 mm | 5 | – | – | 7.9 |
| December | 15°C | 5°C | 76 mm | 8 | – | – | 6.9 |
Frequently asked questions
How hot is Gilroy in September?
Daytime highs average 26°C and nights about 13°C.
When is the best time to visit Gilroy?
The best months are July, August, September, June.