Our verdict
The best time to visit Phoenix is March-April
The very hottest temperatures in Phoenix get to around 41℃ (106℉) in the height of summer. In the winter, temperatures can get down to 6℃ (42℉) around December.
If you’re keen to see the sights of Phoenix during the day, the sun stays up the longest around July. The wet season in Phoenix usually falls during the months surrounding July each year. It’s not uncommon to get some decent rainfall or light showers during this time, but on some days the weather tends to be fine for a majority of the day, with only a few drops of rain falling from a passing shower.
Learn everything you need to know (and none of the stuff you don’t) about when to go to Phoenix below. Be sure to check out the handy tools we’ve included to help you search for flights and transport, accommodation, and everything else you need to plan and book your trip.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Phoenix seasons
Before you continue, it’s important to know when the seasons are in Phoenix as they might be different to yours depending on where in the world you’re travelling from. Phoenix is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Phoenix
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Phoenix for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Phoenix climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Phoenix for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Phoenix in January
- Average temperature: 13℃ (55℉)
- Average high temperature: 18℃ (65℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 42%
- Average sunny days: 27 days
- Average rainfall: 7mm (0") over 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in January, make sure you pack a warm jacket or coat.
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Phoenix in February
- Average temperature: 15℃ (58℉)
- Average high temperature: 20℃ (68℉)
- Average low temperature: 10℃ (50℉)
- Average humidity: 38%
- Average sunny days: 24 days
- Average rainfall: 11mm (0") over 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in February, make sure you pack a warm jacket or coat.
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Phoenix in March
- Average temperature: 19℃ (65℉)
- Average high temperature: 25℃ (76℉)
- Average low temperature: 13℃ (56℉)
- Average humidity: 29%
- Average sunny days: 28 days
- Average rainfall: 11mm (0") over 4 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in March, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Phoenix in April
- Average temperature: 22℃ (72℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 16℃ (61℉)
- Average humidity: 21%
- Average sunny days: 28 days
- Average rainfall: 3mm (0") over 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in April, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Phoenix in May
- Average temperature: 27℃ (80℉)
- Average high temperature: 33℃ (91℉)
- Average low temperature: 20℃ (68℉)
- Average humidity: 19%
- Average sunny days: 29 days
- Average rainfall: 2mm (0") over 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in May, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Phoenix in June
- Average temperature: 32℃ (89℉)
- Average high temperature: 39℃ (102℉)
- Average low temperature: 24℃ (76℉)
- Average humidity: 16%
- Average sunny days: 29 days
- Average rainfall: 2mm (0") over 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in June, make sure you pack t-shirts, shorts and sun protection.
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Phoenix in July
- Average temperature: 34℃ (93℉)
- Average high temperature: 39℃ (103℉)
- Average low temperature: 29℃ (84℉)
- Average humidity: 29%
- Average sunny days: 21 days
- Average rainfall: 20mm (1") over 7 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in July, make sure you pack t-shirts, shorts and sun protection.
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Phoenix in August
- Average temperature: 34℃ (93℉)
- Average high temperature: 39℃ (102℉)
- Average low temperature: 29℃ (84℉)
- Average humidity: 30%
- Average sunny days: 22 days
- Average rainfall: 15mm (1") over 6 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in August, make sure you pack t-shirts, shorts and sun protection.
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Phoenix in September
- Average temperature: 31℃ (88℉)
- Average high temperature: 36℃ (97℉)
- Average low temperature: 26℃ (79℉)
- Average humidity: 30%
- Average sunny days: 24 days
- Average rainfall: 17mm (1") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in September, make sure you pack t-shirts, shorts and sun protection.
Phoenix in October
- Average temperature: 24℃ (76℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 20℃ (67℉)
- Average humidity: 30%
- Average sunny days: 27 days
- Average rainfall: 17mm (1") over 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Phoenix in November
- Average temperature: 18℃ (64℉)
- Average high temperature: 23℃ (74℉)
- Average low temperature: 14℃ (56℉)
- Average humidity: 33%
- Average sunny days: 27 days
- Average rainfall: 9mm (0") over 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in November, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.
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Phoenix in December
- Average temperature: 12℃ (54℉)
- Average high temperature: 17℃ (63℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 43%
- Average sunny days: 25 days
- Average rainfall: 15mm (1") over 5 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Phoenix in December, make sure you pack a warm jacket or coat.
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