ERA5 almanac comparison — 8 years of real data
Mazatlán vs San Francisco: weather in February
Mazatlán is the clear winner for sun in February: 85% of days historically clear versus just 1% in San Francisco — a 84-point gap across 8 years of ERA5 data. This isn't close.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific February. For this
week’s actual forecast, each destination links to its live page below.
Mazatlán
MX
- Clear days, February
- 85%
- Sample size
- n=226 days
- Avg high
- 77°F
- Early February (1st–15th)
- 78%
- Late February (16th–end)
- 92%
San Francisco
CA
- Clear days, February
- 1%
- Sample size
- n=226 days
- Avg high
- 58°F
- Early February (1st–15th)
- 0%
- Late February (16th–end)
- 2%
Compare Mazatlán vs San Francisco 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 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.