Rancho Santa Margarita in December

7.7out of 10

Yes, a good time to go

Mild: highs around 18°C. Some rain: about 6 rainy days.

18°CAvg high
6°CAvg low
6Rainy days (64 mm)
9:47 hDaylight
06:53Sunrise · 16:40 Sunset

Why this score

  • Mild: highs around 18°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 (±3.1 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

18° 7° J 19° 7° F 20° 9° M 22° 11° A 24° 13° M 27° 16° J 30° 18° J 31° 19° A 30° 18° S 26° 14° O 22° 9° N 18° 6° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 18°C7°C91 mm 7– – 7.6
February 19°C7°C110 mm 7– – 7.5
March 20°C9°C67 mm 7– – 7.9
April 22°C11°C31 mm 4– – 8.5
May 24°C13°C15 mm 2– – 8.8
June 27°C16°C3 mm 1– – 9.0
July 30°C18°C2 mm 1– – 8.7
August 31°C19°C1 mm 0– – 8.4
September 30°C18°C6 mm 1– – 8.6
October 26°C14°C22 mm 3– – 8.7
November 22°C9°C31 mm 4– – 8.6
December 18°C6°C64 mm 6– – 7.7

Frequently asked questions

How hot is Rancho Santa Margarita in December?

Daytime highs average 18°C and nights about 6°C.

When is the best time to visit Rancho Santa Margarita?

The best months are June, May, July, October.