ERA5 almanac comparison — 8 years of real data
Cartagena vs Turks & Caicos: weather in May
Turks & Caicos edges out Cartagena for sun in May: 23% clear historically versus 5% (8-year ERA5 average, a 18-point gap). Cartagena also sees measurably more rain than Turks & Caicos this month (72% vs 42% of days). Both are viable — Turks & Caicos is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific May. For this
week’s actual forecast, each destination links to its live page below.
Cartagena
CO
- Clear days, May
- 5%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early May (1st–15th)
- 8%
- Late May (16th–end)
- 2%
- Rain frequency
- 72% of days
Turks & Caicos
TC
- Clear days, May
- 23%
- Sample size
- n=248 days
- Avg high
- 82°F
- Early May (1st–15th)
- 27%
- Late May (16th–end)
- 19%
- Rain frequency
- 42% of days
Compare Cartagena vs Turks & Caicos 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.