Phoenix
August
Weather in Phoenix for August 2025
Your guide to Phoenix weather in August - trends and predictions
In general, the average temperature in Phoenix at the beginning of August is 42.1 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 42 °F by the end of August.
The climate of Phoenix in August is notably wet, with an average of 12 rainy days, and a total of 46 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
40°/30°
Temperatures
19 km/h
Avg max wind
30 %
Avg humidity
Phoenix in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  40° | 2  42° | 3  43° | ||||
| 4 43° | 5 44° | 6 42° | 7  41° | 8 40° | 9 39° | 10 40° |
| 11  39° | 12 39° | 13 38° | 14 39° | 15 40° | 16 40° | 17 40° |
| 18 39° | 19 37° | 20 38° | 21 36° | 22 38° | 23 40° | 24 40° |
| 25 41° | 26 43° | 27 42° | 28 42° | 29 42° | 30 43° | 31 41° |
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Temperatures trend during August in Phoenix
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Cloudy | 40° /28° | 0.4 mm | 9 | |
| Aug. 2 | Patchy rain possible | 42° /31° | 0.3 mm | 9 | |
| Aug. 3 | Sunny | 43° /31° | 0 mm | 10 | |
| Aug. 4 | Sunny | 43° /31° | 0.5 mm | 10 | |
| Aug. 5 | Sunny | 44° /30° | 0.2 mm | 10 | |
| Aug. 6 | Sunny | 42° /30° | 0.8 mm | 10 | |
| Aug. 7 | Partly cloudy | 41° /30° | 0.3 mm | 10 | |
| Aug. 8 | Sunny | 40° /30° | 0.7 mm | 9 | |
| Aug. 9 | Patchy rain possible | 39° /30° | 0.5 mm | 9 | |
| Aug. 10 | Patchy rain possible | 40° /30° | 1.6 mm | 9 | |
| Aug. 11 | Moderate or heavy rain shower | 39° /28° | 6.8 mm | 9 | |
| Aug. 12 | Moderate or heavy rain shower | 39° /28° | 9.2 mm | 8 | |
| Aug. 13 | Patchy rain possible | 38° /28° | 1.2 mm | 8 | |
| Aug. 14 | Patchy rain possible | 39° /29° | 4.2 mm | 9 | |
| Aug. 15 | Sunny | 40° /29° | 0.1 mm | 9 | |
| Aug. 16 | Moderate rain at times | 40° /30° | 0.7 mm | 9 | |
| Aug. 17 | Patchy rain possible | 40° /31° | 2.7 mm | 9 | |
| Aug. 18 | Moderate or heavy rain shower | 39° /29° | 5.3 mm | 9 | |
| Aug. 19 | Sunny | 37° /28° | 1.1 mm | 9 | |
| Aug. 20 | Sunny | 38° /28° | 1.1 mm | 9 | |
| Aug. 21 | Moderate rain at times | 36° /27° | 4.1 mm | 8 | |
| Aug. 22 | Sunny | 38° /27° | 1.4 mm | 9 | |
| Aug. 23 | Sunny | 40° /28° | 0.1 mm | 9 | |
| Aug. 24 | Sunny | 40° /28° | 0.4 mm | 9 | |
| Aug. 25 | Sunny | 41° /29° | 1 mm | 10 | |
| Aug. 26 | Sunny | 43° /30° | 0.2 mm | 10 | |
| Aug. 27 | Sunny | 42° /30° | 0.2 mm | 9 | |
| Aug. 28 | Sunny | 42° /30° | 0.2 mm | 9 | |
| Aug. 29 | Sunny | 42° /30° | 0 mm | 10 | |
| Aug. 30 | Patchy rain possible | 43° /30° | 0.2 mm | 10 | |
| Aug. 31 | Moderate rain at times | 41° /30° | 0.5 mm | 9 | |
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Important Notice
Our weather forecast for Phoenix in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Phoenix forecast closer to your planned date for the most up-to-date weather information.
Phoenix in August - FAQ
What are the expected maximum and minimum temperatures in Phoenix during August?
With daytime temperatures soaring above 40° and not dropping much below 30° at night, August in Phoenix is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Phoenix during August?
In August, Phoenix can expect light to moderate rainfall, totaling 46 mm across approximately 12 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Phoenix during August?
The average wind speed in Phoenix during August is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Phoenix
Explore the daily rainfall trends and prepare for Phoenixs August weather 💧
UV exposure in Phoenix during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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