ERA5 almanac comparison — 8 years of real data
Bangkok vs Phuket: weather in January
Bangkok is the clear winner for sun in January: 69% of days historically clear versus just 25% in Phuket — a 44-point gap across 8 years of ERA5 data. Phuket also sees measurably more rain than Bangkok this month (33% vs 12% of days). This isn't close.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific January. For this
week’s actual forecast, each destination links to its live page below.
Bangkok
TH
- Clear days, January
- 69%
- Sample size
- n=248 days
- Avg high
- 89°F
- Early January (1st–15th)
- 71%
- Late January (16th–end)
- 67%
- Rain frequency
- 12% of days
Phuket
TH
- Clear days, January
- 25%
- Sample size
- n=248 days
- Avg high
- 87°F
- Early January (1st–15th)
- 19%
- Late January (16th–end)
- 30%
- Rain frequency
- 33% of days
Compare Bangkok vs Phuket 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.