ERA5 almanac comparison — 8 years of real data
Anguilla vs Puerto Rico: weather in October
Anguilla edges out Puerto Rico for sun in October: 19% clear historically versus 9% (8-year ERA5 average, a 10-point gap). Puerto Rico also sees measurably more rain than Anguilla this month (71% vs 52% of days). Both are viable — Anguilla is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific October. For this
week’s actual forecast, each destination links to its live page below.
Anguilla
AI
- Clear days, October
- 19%
- Sample size
- n=248 days
- Avg high
- 83°F
- Early October (1st–15th)
- 22%
- Late October (16th–end)
- 16%
- Rain frequency
- 52% of days
Puerto Rico
PR
- Clear days, October
- 9%
- Sample size
- n=248 days
- Avg high
- 86°F
- Early October (1st–15th)
- 8%
- Late October (16th–end)
- 9%
- Rain frequency
- 71% of days
Compare Anguilla vs Puerto Rico 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.