ERA5 almanac comparison — 8 years of real data
Austin vs Martha's Vineyard: weather in May
Austin edges out Martha's Vineyard for sun in May: 27% clear historically versus 3% (8-year ERA5 average, a 24-point gap). Both are viable — Austin is the safer bet.
Austin
TX
- Clear days, May
- 27%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early May (1st–15th)
- 32%
- Late May (16th–end)
- 23%
- Rain frequency
- 49% of days
Martha's Vineyard
MA
- Clear days, May
- 3%
- Sample size
- n=248 days
- Avg high
- 62°F
- Early May (1st–15th)
- 1%
- Late May (16th–end)
- 4%
- Rain frequency
- 35% of days
Frequently asked
Is Austin or Martha's Vineyard warmer in May?
Austin runs warmer by day in May. Austin averages highs of 87°F (highs n=248 days); Martha's Vineyard averages highs of 62°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Austin or Martha's Vineyard in May?
Days with measurable rain: Austin 49%, Martha's Vineyard 35% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in May, Austin or Martha's Vineyard?
Austin edges out Martha's Vineyard for sun in May: 27% clear historically versus 3% (8-year ERA5 average, a 24-point gap). Both are viable — Austin is the safer bet.
Compare Austin vs Martha's Vineyard 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.