ERA5 almanac comparison — 8 years of real data
Charleston vs Turks & Caicos: weather in January
Turks & Caicos is the clear winner for sun in January: 34% of days historically clear versus just 1% in Charleston — a 33-point gap across 8 years of ERA5 data. This isn't close.
Charleston
SC
- Clear days, January
- 1%
- Sample size
- n=248 days
- Avg high
- 57°F
- Early January (1st–15th)
- 2%
- Late January (16th–end)
- 0%
- Rain frequency
- 31% of days
Turks & Caicos
Turks & Caicos Is
- Clear days, January
- 34%
- Sample size
- n=248 days
- Avg high
- 78°F
- Early January (1st–15th)
- 33%
- Late January (16th–end)
- 34%
- Rain frequency
- 28% of days
Frequently asked
Is Charleston or Turks & Caicos warmer in January?
Turks & Caicos runs warmer by day in January. Charleston averages highs of 57°F (highs n=248 days); Turks & Caicos averages highs of 78°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Charleston or Turks & Caicos in January?
Days with measurable rain: Charleston 31%, Turks & Caicos 28% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in January, Charleston or Turks & Caicos?
Turks & Caicos is the clear winner for sun in January: 34% of days historically clear versus just 1% in Charleston — a 33-point gap across 8 years of ERA5 data. This isn't close.
Compare Charleston 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 forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.