Atascadero in December
7.2out of 10
Possible, with caveats
Mild: highs around 15°C. Some rain: about 6 rainy days.
15°CAvg high
6°CAvg low
6Rainy days (64 mm)
9:37 hDaylight
07:10Sunrise · 16:47 Sunset
Why this score
- Mild: highs around 15°C
- Some rain: about 6 rainy days
What to wear and pack
- Layers you can add or remove
- Comfortable walking shoes
How reliable is the forecast?
Rain in December varies a lot between years (±3.5 rainy days), so check the forecast closer to your trip. 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 | 6°C | 85 mm | 7 | – | – | 7.1 |
| February | 16°C | 7°C | 83 mm | 8 | – | – | 7.1 |
| March | 18°C | 8°C | 65 mm | 7 | – | – | 7.5 |
| April | 20°C | 9°C | 24 mm | 4 | – | – | 8.2 |
| May | 22°C | 11°C | 11 mm | 2 | – | – | 8.9 |
| June | 25°C | 13°C | 2 mm | 0 | – | – | 9.1 |
| July | 26°C | 15°C | 1 mm | 0 | – | – | 9.1 |
| August | 27°C | 15°C | 1 mm | 0 | – | – | 9.1 |
| September | 26°C | 14°C | 1 mm | 0 | – | – | 9.1 |
| October | 23°C | 12°C | 17 mm | 2 | – | – | 8.9 |
| November | 19°C | 8°C | 29 mm | 4 | – | – | 8.0 |
| December | 15°C | 6°C | 64 mm | 6 | – | – | 7.2 |
Frequently asked questions
How hot is Atascadero in December?
Daytime highs average 15°C and nights about 6°C.
When is the best time to visit Atascadero?
The best months are June, July, August, September.