ERA5 almanac comparison — 8 years of real data
Newport vs St. Martin: weather in July
Newport is the clear winner for sun in July: 47% of days historically clear versus just 11% in St. Martin — a 36-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 July. For this
week’s actual forecast, each destination links to its live page below.
Newport
RI
- Clear days, July
- 47%
- Sample size
- n=248 days
- Avg high
- 78°F
- Early July (1st–15th)
- 49%
- Late July (16th–end)
- 46%
St. Martin
SX
- Clear days, July
- 11%
- Sample size
- n=248 days
- Avg high
- 80°F
- Early July (1st–15th)
- 15%
- Late July (16th–end)
- 7%
Compare Newport vs St. Martin 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.