August weather forecastSurprise, AZ
August
Weather in August
August sustains July's temperatures, barely providing any respite from the summer heat. High temperatures continue through the month, reaching an average high of 100.9°F (38.3°C). Sunshine is still plentiful, and rainfall remains scarce, as Surprise endures the peak of summer. Despite the high temperatures, residents adapt to the scorching weather promising the advent of cooler days.Temperature
August in Surprise brings an average high-temperature of a still torrid 100.9°F (38.3°C), nearly identical to the preceding month. During the month of August, Surprise anticipates a mean low-temperature of 83.1°F (28.4°C).Humidity
The average relative humidity in August is 31%.Rainfall
In August, in Surprise, the rain falls for 10.3 days. Throughout August, 1.26" (32mm) of precipitation is accumulated. Throughout the year, in Surprise, there are 60.7 rainfall days, and 8.62" (219mm) of precipitation is accumulated.Daylight
In Surprise, the average length of the day in August is 13h and 22min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:29 pm. On the last day of August, in Surprise, sunrise is at 6:03 am and sunset at 6:55 pm MST.
Sunshine
The average sunshine in August is 11.8h.UV index
The months with the highest UV index in Surprise are June through August, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 8 in August suggests the following recommendations:
Ensure you're always protected. Unprotected skin can get damaged in moments. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Surprise, AZ
- Average high temperature in August: 100.9°F
The warmest month (with the highest average high temperature) is July (101.7°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in August: 83.1°F
The month with the highest average low temperature is August (83.1°F).
The coldest months (with the lowest average low temperature) are January and December (46°F).
Average pressure in August
Surprise, AZ
- Average pressure in August: 29.86"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in August
Surprise, AZ
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).
Average humidity in August
Surprise, AZ
- Average humidity in August: 31%
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).
Average rainfall in August
Surprise, AZ
- Average rainfall in August: 1.26"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in August
Surprise, AZ
- Average rainfall days in August: 10.3 days
The month with the highest number of rainy days is July (11.4 days).
The month with the least rainy days is June (1.2 days).
Average daylight in August /
Average sunshine in August
Surprise, AZ
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 11h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in August
Surprise, AZ
- Average sunshine days in August: 15.7 days
The month with the most sunshine days is May (28.2 days).
The month with the least sunshine days is July (15.2 days).
Average UV index in August
Surprise, AZ
- Average UV index in August: 8
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Surprise, AZ
- Average cloud cover in August: 12
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in August
Surprise, AZ
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
