Flagstaff weather
in May
“Mild and bright — an underrated time to visit.”
Roughly 7 rainy days across the month, on average.
In may, Flagstaff settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 20°C (68°F), cooling to 6°C after sunset. Rain is rare enough that you can plan without a contingency. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Flagstaff in May
- •A light layer for cool mornings and evenings
- •Layers, because the day changes
- •A merino base layer for the cold evenings
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Flagstaff in May
- →Breathable travel pantsAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
- →Universal travel adapterAmazon · shop this
- →Compression packing cubesAmazon · shop this
- →Anti-theft crossbody bagAmazon · shop this
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Where to stay in Flagstaff
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Flagstaff in May — FAQ
Q01Is May a good time to visit Flagstaff?
Is May a good time to visit Flagstaff?
Yes — this is one of the best months of the year to visit. In May, Flagstaff averages a high of 20°C (68°F) and a low of 6°C (43°F), with 29mm of rainfall across roughly 7 rainy days.
Q02What is the average temperature in Flagstaff in May?
What is the average temperature in Flagstaff in May?
The average high temperature in Flagstaff during May is 20°C (68°F), with an average low of 6°C (43°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Flagstaff have in May?
How many rainy days does Flagstaff have in May?
Flagstaff averages approximately 7 rainy days in May, with a total monthly rainfall of about 29mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Flagstaff in May?
What should I pack for Flagstaff in May?
For Flagstaff in May, pack layered clothing for changing temperatures, a merino base layer for evenings, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Flagstaff in May?
How crowded is Flagstaff in May?
Tourist crowds in Flagstaff during May are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.