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SunnyDays

ERA5 almanac comparison — 8 years of real data

Mexico City vs Outer Banks: weather in May

Mexico City edges out Outer Banks for sun in May: 33% clear historically versus 16% (8-year ERA5 average, a 17-point gap). Both are viable — Mexico City is the safer bet.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific May. For the actual forecast right now, each destination links to its live page below.

Mexico City

Mexico

Clear days, May
33%
Sample size
n=248 days
Avg high
83°F
Early May (1st–15th)
37%
Late May (16th–end)
29%
Rain frequency
35% of days

Outer Banks

NC

Clear days, May
16%
Sample size
n=248 days
Avg high
70°F
Early May (1st–15th)
5%
Late May (16th–end)
27%
Rain frequency
35% of days

Frequently asked

Is Mexico City or Outer Banks warmer in May?

Mexico City runs warmer by day in May. Mexico City averages highs of 83°F (highs n=248 days); Outer Banks averages highs of 70°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Mexico City or Outer Banks in May?

Days with measurable rain: Mexico City 35%, Outer Banks 35% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in May, Mexico City or Outer Banks?

Mexico City edges out Outer Banks for sun in May: 33% clear historically versus 16% (8-year ERA5 average, a 17-point gap). Both are viable — Mexico City is the safer bet.

Compare Mexico City vs Outer Banks 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.