ERA5 almanac comparison — 8 years of real data
Cayman Islands vs Phoenix: weather in April
Phoenix is the clear winner for sun in April: 94% of days historically clear versus just 10% in Cayman Islands — a 84-point gap across 8 years of ERA5 data. Cayman Islands also sees measurably more rain than Phoenix this month (58% vs 2% of days). This isn't close.
Cayman Islands
Cayman Islands
- Clear days, April
- 10%
- Sample size
- n=240 days
- Avg high
- 84°F
- Early April (1st–15th)
- 15%
- Late April (16th–end)
- 5%
- Rain frequency
- 58% of days
Phoenix
AZ
- Clear days, April
- 94%
- Sample size
- n=240 days
- Avg high
- 88°F
- Early April (1st–15th)
- 92%
- Late April (16th–end)
- 95%
- Rain frequency
- 2% of days
Frequently asked
Is Cayman Islands or Phoenix warmer in April?
Phoenix runs warmer by day in April. Cayman Islands averages highs of 84°F (highs n=240 days); Phoenix averages highs of 88°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Cayman Islands or Phoenix in April?
Cayman Islands is measurably wetter than Phoenix. Days with measurable rain: Cayman Islands 58%, Phoenix 2% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in April, Cayman Islands or Phoenix?
Phoenix is the clear winner for sun in April: 94% of days historically clear versus just 10% in Cayman Islands — a 84-point gap across 8 years of ERA5 data. Cayman Islands also sees measurably more rain than Phoenix this month (58% vs 2% of days). This isn't close.
Compare Cayman Islands vs Phoenix 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.