Where is it mild in December?

Comfortable for walking all day — neither hot nor cold. Ranked from 239 travel destinations using ERA5 climate averages — what December is normally like, not what the weather will do next week.

See it on the map

Top 20 by December weather

Day and night temperatures are monthly averages of daily highs and lows. Rain is an average across the whole month. Places with the same rating have equally good weather for this; among them, the one covered by more language editions of Wikivoyage, the open travel guide, is listed first. The bar under each place shows its other good months — click one to jump there.
#	Place	Day	Night	Rain	Rating
1	Hong Kong, Hong Kong	20°C	13°C	0.2 mm/day	Excellent
2	Melbourne, Australia	24°C	14°C	1.7 mm/day	Excellent
3	Cairo, Egypt	21°C	10°C	0.1 mm/day	Excellent
4	Nairobi, Kenya	24°C	14°C	0.9 mm/day	Excellent
5	Hanoi, Vietnam	21°C	14°C	1.1 mm/day	Excellent
6	Addis Ababa, Ethiopia	22°C	8°C	0.1 mm/day	Excellent
7	Santiago, Chile	25°C	13°C	0.8 mm/day	Excellent
8	Cape Town, South Africa	21°C	16°C	0.8 mm/day	Excellent
9	Delhi, India	22°C	9°C	0.3 mm/day	Excellent
10	Riyadh, Saudi Arabia	22°C	10°C	0.1 mm/day	Excellent
11	Adelaide, Australia	25°C	15°C	0.8 mm/day	Excellent
12	Lima, Peru	23°C	18°C	0.5 mm/day	Excellent
13	Doha, Qatar	25°C	16°C	0.1 mm/day	Excellent
14	Abu Dhabi, United Arab Emirates	26°C	18°C	0.1 mm/day	Excellent
15	Casablanca, Morocco	19°C	10°C	0.9 mm/day	Excellent
16	Hurghada, Egypt	22°C	15°C	0.0 mm/day	Excellent
17	San Diego, United States	18°C	10°C	1.2 mm/day	Excellent
18	Orlando, United States	22°C	13°C	1.1 mm/day	Excellent
19	Jaipur, India	23°C	9°C	0.2 mm/day	Excellent
20	Christchurch, New Zealand	21°C	12°C	2.0 mm/day	Excellent

What this ranking does and does not tell you

It rates the weather only — daytime and night temperature, rain and sunshine. It says nothing about what there is to see or do, prices, crowds or safety; that part of the decision is yours.

The candidates are 503 established travel destinations, not every town on Earth, so a place missing here may simply not be on the list.

Looking for something else in December?

warm hot dry sunny cool

The same question, another month

January February March April May June July August September October November December