ERA5 almanac comparison — 8 years of real data
Los Cabos vs Puerto Vallarta: weather in January
Los Cabos edges out Puerto Vallarta for sun in January: 91% clear historically versus 86% (8-year ERA5 average, a 5-point gap). Both are viable — Los Cabos is the safer bet.
Los Cabos
Mexico
- Clear days, January
- 91%
- Sample size
- n=248 days
- Avg high
- 78°F
- Early January (1st–15th)
- 90%
- Late January (16th–end)
- 92%
- Rain frequency
- 2% of days
Puerto Vallarta
Mexico
- Clear days, January
- 86%
- Sample size
- n=248 days
- Avg high
- 79°F
- Early January (1st–15th)
- 86%
- Late January (16th–end)
- 86%
- Rain frequency
- 4% of days
Frequently asked
Is Los Cabos or Puerto Vallarta warmer in January?
Puerto Vallarta runs warmer by day in January. Los Cabos averages highs of 78°F (highs n=248 days); Puerto Vallarta averages highs of 79°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Los Cabos or Puerto Vallarta in January?
Days with measurable rain: Los Cabos 2%, Puerto Vallarta 4% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in January, Los Cabos or Puerto Vallarta?
Los Cabos edges out Puerto Vallarta for sun in January: 91% clear historically versus 86% (8-year ERA5 average, a 5-point gap). Both are viable — Los Cabos is the safer bet.
Compare Los Cabos vs Puerto Vallarta 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.