December in Temecula, CA: peak season for golf — great conditions and a wide playing window. Best tee times: mid-morning through early afternoon.
| Average December Weather | |
|---|---|
| Avg daily high | 66°F |
| Avg daily low | 45°F |
| Rainy days | 9 / mo |
| Avg peak wind | 9.2 mph |
December sits at an interesting transition point in Temecula's golf calendar. Coming out of November, you lose 7 degrees off the afternoon high and pick up four more rainy days — a meaningful shift that changes how you plan your round. The upside: December carries the calmest peak wind of any month all year at 9.2 mph, and afternoon highs still reach 66°F, keeping conditions genuinely playable.
That 21°F daily swing from a 45°F morning low to a 66°F afternoon high is the main variable to manage. Early tee times feel legitimately cold, while midday windows can be comfortable in a light layer. Despite sitting on a Peak season badge, the precipitation picture is real — nine rainy days ties December with April as the second-wettest month of the year, so flexibility in your schedule matters.
Book midday tee times — 10 AM to 1 PM — to dodge the coldest part of the morning and maximize your window at or near the 66°F afternoon high. With nine potential rain days this month, checking a short-range forecast within 48 hours and having a backup date in mind is more important in December than at any other point in the fall-winter stretch. See how conditions rate hour by hour on our playability scale.
Compared to November's 73°F average high and just 5 rainy days, December brings noticeably cooler, wetter conditions — a 7-degree drop in temperature and four additional days with measurable precipitation. Heading into January, the change is more modest: highs slip only 2 more degrees to 64°F and rainy days actually ease back to 7, making January slightly drier if marginally colder. Wind stays almost identical across all three months, with December's 9.2 mph edge being negligible in practice.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for Temecula, CA for the current playability rating, hourly wind, temperature, and the recommended tee time window.
← November in Temecula, CA • January in Temecula, CA →
December earns a Peak season rating largely because the wind is the calmest of any month all year at 9.2 mph and afternoon highs reach 66°F — within the comfortable playing range. The trade-off is nine rainy days, tied for second-most of any month, so it rewards golfers who can pick their window rather than those locked into a fixed date.
Morning lows average 45°F, which feels cold on Temecula's open valley fairways, especially with any breeze. Afternoons recover to an average high of 66°F, so the same day can feel like two different seasons depending on when you tee off. Plan around that 21°F swing — 45°F low to 66°F high — when deciding what to pack and when to tee off.