Dallas weather in August
Dallas in August averages 31°C (87°F) and 56 mm of rain.
Of the twelve months in Dallas, August is the warmest and the second driest.
- Average temp
- 31°C (87°F)
25–36°C · 78–97°F
- Rainfall
- 56 mm
Showers likely
- Sunshine
- —
- Wind
- 13 km/h
What is Dallas like in August?
Daytime
Days are hot, often above 32°C.
Rain
Some rain is likely; pack for showers.
Evening
Evenings stay warm.
What should I pack for Dallas in August?
High-factor sun cream
With daytime highs around 36°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A light rain jacket
About 56 mm falls this month — showers rather than washouts.
A layer for the evening
The day swings about 11°C between its low and its high.
August compared with July and September
August in Dallas is about the same temperature as July and 11 mm wetter than it, which averages 31°C (87°F).
August in Dallas is 4°C warmer than September and 21 mm drier than it, which averages 27°C (80°F).
Daylight in Dallas in August
On 15 August the sun is up for 13 hours 20 minutes in Dallas, rising about 06:51 and setting about 20:11 local time.
August ends 53 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 58 minutes short of June, the longest-lit month here.
Where to stay in Dallas
Dates are a starting point for August.
Travel guides for Dallas
What to read before you book.
Dallas weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 9°C / 48°F | 64 mm |
| February | 11°C / 52°F | 70 mm |
| March | 15°C / 60°F | 88 mm |
| April | 20°C / 67°F | 80 mm |
| May | 24°C / 75°F | 116 mm |
| June | 28°C / 83°F | 97 mm |
| July | 31°C / 87°F | 45 mm |
| August | 31°C / 87°F | 56 mm |
| September | 27°C / 80°F | 76 mm |
| October | 21°C / 69°F | 122 mm |
| November | 14°C / 58°F | 75 mm |
| December | 10°C / 49°F | 79 mm |
Similar weather in August
Other destinations whose August averages sit close to this one.
Check another month
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FAQs about Dallas in August
August climate averages for Dallas, 1991–2020.
Dallas averages 31°C (87°F) in August, ranging from about 25°C (78°F) at night to 36°C (97°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 56 mm falls across August, enough to need a light jacket but not enough to reshape a trip.
Yes. August averages 31°C (87°F) against 27°C (80°F) in September — 4°C warmer.
August is about as warm as July, and 11 mm wetter.
It is outside the easiest window. The most comfortable stretch here is April to July; August sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 13 hours 20 minutes of daylight in mid-August, against 14 hours 18 minutes in June and 10 hours in December.
On 15 August, sunrise is about 06:51 and sunset about 20:11 local time. Both shift across the month — the month ends 53 minutes shorter than it starts.
