Where is it mild in January?

Comfortable for walking all day — neither hot nor cold. Ranked from 237 travel destinations using ERA5 climate averages — what January is normally like, not what the weather will do next week.

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Top 20 by January 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	19°C	13°C	2.1 mm/day	Excellent
2	Dubai, United Arab Emirates	25°C	13°C	0.7 mm/day	Excellent
3	Cairo, Egypt	19°C	8°C	0.1 mm/day	Excellent
4	Nairobi, Kenya	24°C	14°C	1.6 mm/day	Excellent
5	Addis Ababa, Ethiopia	22°C	10°C	0.5 mm/day	Excellent
6	Delhi, India	19°C	8°C	1.2 mm/day	Excellent
7	Riyadh, Saudi Arabia	21°C	8°C	0.2 mm/day	Excellent
8	Doha, Qatar	22°C	13°C	0.2 mm/day	Excellent
9	Hurghada, Egypt	20°C	13°C	0.1 mm/day	Excellent
10	Valparaíso, Chile	19°C	14°C	0.1 mm/day	Excellent
11	San Diego, United States	18°C	9°C	1.0 mm/day	Excellent
12	Muscat, Oman	24°C	16°C	0.5 mm/day	Excellent
13	Jaipur, India	21°C	8°C	0.4 mm/day	Excellent
14	Christchurch, New Zealand	23°C	14°C	1.8 mm/day	Excellent
15	Luang Prabang, Laos	25°C	14°C	0.6 mm/day	Excellent
16	Santa Cruz de Tenerife, Spain	19°C	14°C	0.7 mm/day	Excellent
17	Agadir, Morocco	21°C	11°C	0.2 mm/day	Excellent
18	Antigua Guatemala, Guatemala	23°C	12°C	0.3 mm/day	Excellent
19	Hobart, Australia	23°C	13°C	1.6 mm/day	Excellent
20	Tampa, United States	20°C	12°C	2.2 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 January?

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The same question, another month

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