Temperature
Very hot by day, warm at night.
101°Ftypical September high
Typical range
September climate
September in Phoenix
United States · North America
Not the best time: Very hot afternoons are the main limitation.
Not an ideal month
Daytime high
101°F
Lows around 77°F
Rain
A few rainy days
Sun
11.5 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Rain is infrequent in September.
10%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
11.7 hSeptember sunshine
Heat & humidity by month
Hot, mostly dry days.
54%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 96° and nights feel near 77°.
Very coldColdCoolComfortableWarmHotSwelteringNight hours
Clear sky
Mostly clear skies this month.
79%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
5 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 99°F, easing to about 93°F in early evening.
Avg temp Typical range
Morning89°F
Rain4%
Cloud19%
Humid airLow
Sun intensityModerate
Midday96°F
Rain4%
Cloud18%
Humid airLow
Sun intensityStrong
Late afternoon99°F
Rain4%
Cloud26%
Humid airLow
Sun intensityModerate
Early evening93°F
Rain3%
Cloud26%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 68 | 44 | 1.0 | 3 | 8.9 | 48 |
| Feb | 72 | 47 | 1.2 | 4 | 9.7 | 44 |
| Mar | 80 | 52 | 0.8 | 3 | 10.9 | 36 |
| Apr | 87 | 59 | 0.3 | 1 | 12.4 | 24 |
| May | 96 | 69 | 0.1 | 1 | 13.0 | 19 |
| Jun | 106 | 78 | 0.1 | 1 | 13.6 | 17 |
| Jul | 107 | 85 | 0.8 | 4 | 12.7 | 30 |
| Aug | 106 | 84 | 1.0 | 4 | 12.5 | 34 |
| Sep | 101 | 77 | 1.0 | 3 | 11.7 | 33 |
| Oct | 90 | 64 | 0.8 | 2 | 10.6 | 33 |
| Nov | 78 | 52 | 0.6 | 2 | 9.5 | 37 |
| Dec | 67 | 44 | 1.0 | 3 | 8.5 | 50 |
Similar climates
Similar
Similar travel styleDubaiUnited Arab EmiratesSimilar travel styleCairoEgyptSimilar travel styleBaghdadIraqSimilar travel styleRiyadhSaudi Arabia
Want a side-by-side climate view? Compare Phoenix with Dubai.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology