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SunnyDays

ERA5 almanac comparison — 8 years of real data

Cancún vs Los Angeles: weather in January

Essentially a tie in January: Cancún is 21% clear historically, Los Angeles is 23% clear (8-year ERA5 average) — within the noise. Avg high 79°F vs 67°F. Cancún also sees measurably more rain than Los Angeles this month (50% vs 16% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific January. For the actual forecast right now, each destination links to its live page below.

Cancún

Mexico

Clear days, January
21%
Sample size
n=248 days
Avg high
79°F
Early January (1st–15th)
22%
Late January (16th–end)
21%
Rain frequency
50% of days

Los Angeles

CA

Clear days, January
23%
Sample size
n=248 days
Avg high
67°F
Early January (1st–15th)
18%
Late January (16th–end)
27%
Rain frequency
16% of days
See the live forecast →

Frequently asked

Is Cancún or Los Angeles warmer in January?

Cancún runs warmer by day in January. Cancún averages highs of 79°F (highs n=248 days); Los Angeles averages highs of 67°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Cancún or Los Angeles in January?

Cancún is measurably wetter than Los Angeles. Days with measurable rain: Cancún 50%, Los Angeles 16% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in January, Cancún or Los Angeles?

Essentially a tie in January: Cancún is 21% clear historically, Los Angeles is 23% clear (8-year ERA5 average) — within the noise. Avg high 79°F vs 67°F. Cancún also sees measurably more rain than Los Angeles this month (50% vs 16% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.

Compare Cancún vs Los Angeles in another month

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.