ERA5 almanac comparison — 8 years of real data
Cartagena vs Costa Rica — Manuel Antonio: weather in November
Essentially a tie in November: Cartagena is 4% clear historically, Costa Rica — Manuel Antonio is 4% clear (8-year ERA5 average) — within the noise. Avg high 86°F vs 81°F. Costa Rica — Manuel Antonio also sees measurably more rain than Cartagena this month (85% vs 70% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Cartagena
CO
- Clear days, November
- 4%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early November (1st–15th)
- 3%
- Late November (16th–end)
- 5%
- Rain frequency
- 70% of days
Costa Rica — Manuel Antonio
CR
- Clear days, November
- 4%
- Sample size
- n=240 days
- Avg high
- 81°F
- Early November (1st–15th)
- 1%
- Late November (16th–end)
- 7%
- Rain frequency
- 85% of days
Compare Cartagena vs Costa Rica — Manuel Antonio 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.