Weather in Phoenix in May 2025
Average weather
Average temperature in Phoenix in May
The temperature in May is +95°F on average, with a range between a maximum of +102°F during the day and a minimum of +59°F at night.
The average maximum temperature goes down 8% by the end of the month, compared with the beginning of the month, from +100°F to +97°F.
Is Phoenix warm or cold in May?
Phoenix is typically hot in May.
Maximum temperatures go up compared to the previous month from +88°F to +97°F. The minimum temperature also goes up from +61°F to +70°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how May is compared to other months in Phoenix:
Climate in Phoenix in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +88°F | +97°F | +106°F | ||||
| Min. temperature | ||||||
| +43°F | +50°F | +61°F | ||||
| Max. temperature | ||||||
| +106°F | +115°F | +122°F | ||||
| Rainfall | ||||||
| 9 mm | 5 mm | 3 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 24% | 20% | 17% | ||||
| Air pressure | ||||||
| 1011 HPa | 1009 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 15 | 18 | 20 | ||||
| Cloudy days | ||||||
| 12 | 11 | 8 | ||||
| Rainy days | ||||||
| 2 | 2 | 1 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May typically has worse weather conditions compared to April. It’s getting warmer as May arrives. The average maximum temperature goes up from +88°F to +97°F during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 9 mm to 5 mm. It feels drier, as humidity decreases from 24% to 20%. The average wind speed doesn’t change much during May, staying around 2 m/s. The good news is there are likely to be more sunny days in May, from 15 to 18.
But maybe it is worth considering traveling in June as the weather gets better.
Wind
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Phoenix is gradually increasing during May, going from 4 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Phoenix?
Climate Change Over the Years
The climate in Phoenix in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+86°F) and the highest in 1989 (+91°F). The driest year was 2009 with only 125 mm of rainfall, and the wettest year was 1984 with 660 mm.
FAQ
Is May a good time to visit Phoenix?
Can you sunbathe in Phoenix in May?
Is Phoenix rainy in May?
Is it sunny in Phoenix in May?
Other cities in USA
Monthly weather in Phoenix
Source of the data
For this page, we’ve looked at the typical weather in Phoenix, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.