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SunnyDays

ERA5 almanac comparison — 8 years of real data

Phoenix vs Tulum: weather in June

Phoenix is the clear winner for sun in June: 94% of days historically clear versus just 6% in Tulum — a 88-point gap across 8 years of ERA5 data. Tulum also sees measurably more rain than Phoenix this month (69% vs 3% 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 June. For the actual forecast right now, each destination links to its live page below.

Phoenix

AZ

Clear days, June
94%
Sample size
n=240 days
Avg high
105°F
Early June (1st–15th)
97%
Late June (16th–end)
91%
Rain frequency
3% of days
See the live forecast →

Tulum

Mexico

Clear days, June
6%
Sample size
n=240 days
Avg high
86°F
Early June (1st–15th)
5%
Late June (16th–end)
6%
Rain frequency
69% of days

Frequently asked

Is Phoenix or Tulum warmer in June?

Phoenix runs warmer by day in June. Phoenix averages highs of 105°F (highs n=240 days); Tulum averages highs of 86°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.

Does it rain more in Phoenix or Tulum in June?

Tulum is measurably wetter than Phoenix. Days with measurable rain: Phoenix 3%, Tulum 69% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.

Which is sunnier in June, Phoenix or Tulum?

Phoenix is the clear winner for sun in June: 94% of days historically clear versus just 6% in Tulum — a 88-point gap across 8 years of ERA5 data. Tulum also sees measurably more rain than Phoenix this month (69% vs 3% of days). This isn't close.

Compare Phoenix vs Tulum 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.