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SunnyDays

ERA5 almanac comparison — 8 years of real data

Huatulco vs Naples: weather in January

Huatulco is the clear winner for sun in January: 69% of days historically clear versus just 35% in Naples — a 34-point gap across 8 years of ERA5 data. 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 the actual forecast right now, each destination links to its live page below.

Huatulco

Mexico

Clear days, January
69%
Sample size
n=248 days
Avg high
87°F
Early January (1st–15th)
64%
Late January (16th–end)
73%
Rain frequency
14% of days

Naples

FL

Clear days, January
35%
Sample size
n=248 days
Avg high
73°F
Early January (1st–15th)
32%
Late January (16th–end)
37%
Rain frequency
25% of days
See the live forecast →

Frequently asked

Is Huatulco or Naples warmer in January?

Huatulco runs warmer by day in January. Huatulco averages highs of 87°F (highs n=248 days); Naples averages highs of 73°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Huatulco or Naples in January?

Days with measurable rain: Huatulco 14%, Naples 25% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in January, Huatulco or Naples?

Huatulco is the clear winner for sun in January: 69% of days historically clear versus just 35% in Naples — a 34-point gap across 8 years of ERA5 data. This isn't close.

Compare Huatulco vs Naples 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.