ERA5 almanac comparison — 8 years of real data
Lisbon vs Nice / Côte d'Azur: weather in April
Lisbon edges out Nice / Côte d'Azur for sun in April: 19% clear historically versus 6% (8-year ERA5 average, a 13-point gap). Both are viable — Lisbon is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific April. For this
week’s actual forecast, each destination links to its live page below.
Lisbon
PT
- Clear days, April
- 19%
- Sample size
- n=240 days
- Avg high
- 67°F
- Early April (1st–15th)
- 14%
- Late April (16th–end)
- 24%
Nice / Côte d'Azur
FR
- Clear days, April
- 6%
- Sample size
- n=240 days
- Avg high
- 64°F
- Early April (1st–15th)
- 5%
- Late April (16th–end)
- 8%
Compare Lisbon vs Nice / Côte d'Azur 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.