ERA5 almanac comparison — 8 years of real data
Costa Rica — Guanacaste vs Hilton Head: weather in November
Costa Rica — Guanacaste edges out Hilton Head for sun in November: 18% clear historically versus 12% (8-year ERA5 average, a 6-point gap). Costa Rica — Guanacaste also sees measurably more rain than Hilton Head this month (62% vs 31% of days). Both are viable — Costa Rica — Guanacaste is the safer bet.
Costa Rica — Guanacaste
Costa Rica
- Clear days, November
- 18%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early November (1st–15th)
- 10%
- Late November (16th–end)
- 25%
- Rain frequency
- 62% of days
Hilton Head
SC
- Clear days, November
- 12%
- Sample size
- n=240 days
- Avg high
- 68°F
- Early November (1st–15th)
- 18%
- Late November (16th–end)
- 7%
- Rain frequency
- 31% of days
Frequently asked
Is Costa Rica — Guanacaste or Hilton Head warmer in November?
Costa Rica — Guanacaste runs warmer by day in November. Costa Rica — Guanacaste averages highs of 86°F (highs n=240 days); Hilton Head averages highs of 68°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Costa Rica — Guanacaste or Hilton Head in November?
Costa Rica — Guanacaste is measurably wetter than Hilton Head. Days with measurable rain: Costa Rica — Guanacaste 62%, Hilton Head 31% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in November, Costa Rica — Guanacaste or Hilton Head?
Costa Rica — Guanacaste edges out Hilton Head for sun in November: 18% clear historically versus 12% (8-year ERA5 average, a 6-point gap). Costa Rica — Guanacaste also sees measurably more rain than Hilton Head this month (62% vs 31% of days). Both are viable — Costa Rica — Guanacaste is the safer bet.
Compare Costa Rica — Guanacaste vs Hilton Head 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.