Verdict: Good month
Cusco Weather in December
December hits the sweet spot in Cusco — highs around 18°C (64°F), ideal for a full day on foot. It's also the wet side of the calendar: rain falls on about 27 days, so build flexibility into plans. Overall, December is a solid month to visit Cusco.
Average high
18°C / 64°F
Average low
8°C / 46°F
Rain days
~27
Precipitation
192 mm
What to pack for Cusco in December
- Layers — t-shirts under a light jacket or sweater
- Evenings turn genuinely cool — pack a warm layer for after dark
- Rain gear is non-negotiable — expect rain on roughly 27 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
December against the rest of the year
Warmest in Cusco: Jul (19°C / 66°F) · Coolest: Mar (16°C / 61°F) · Wettest: Jan (~28 rain days)
17°
8°
Jan
17°
9°
Feb
16°
8°
Mar
17°
7°
Apr
17°
6°
May
18°
5°
Jun
19°
5°
Jul
19°
5°
Aug
19°
7°
Sep
19°
7°
Oct
19°
8°
Nov
18°
8°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)