August Weather in Grapevine, United States

Last updated: February 24, 2025

In August, Grapevine, United States, experiences a dynamic climate characterized by high temperatures and notable humidity. With a maximum of 40°C (105°F), the month showcases the heat of summer, while the average temperature rests at a comfortable 29°C (85°F). Nights offer a mild respite, dipping to a minimum of 20°C (68°F). However, the region is not without its moisture, recording a total precipitation of 96 mm (3.8 in) over 7 days, contributing to an average humidity level of 66%. This blend of heat and humidity creates a vibrant atmosphere, perfect for summer activities and outdoor enjoyment.

August Temperature in Grapevine

In Grapevine, United States, August marks the peak of summer, delivering notably warm temperatures that set the stage for vibrant outdoor activities. With a minimum temperature of 20°C (68°F) and an average of 29°C (85°F), residents can expect a balmy atmosphere perfect for enjoying the season. The maximum temperature often reaches 40°C (105°F), making it one of the hottest months of the year. This consistent heat wave builds on July’s soaring temperatures, creating a trend that highlights Grapevine’s summer climate as both intense and exhilarating. As August wraps up, the cooler September days loom on the horizon, signaling a transition towards more moderate weather.

August Weather in Grapevine: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Grapevine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464960657481858479685651
Data source: Temperature data for Grapevine generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Grapevine

In August, Grapevine experiences a moderate precipitation total of 96 mm (3.8 in) over approximately 7 days, marking a slight increase from the drier month of July, which recorded only 43 mm. This uptick in rainfall continues the trend of increasing precipitation as the summer months progress, following a peak in May with 160 mm. Notably, August’s rain helps bridge the transition towards the more precipitation-rich autumn months, where September and October bring 89 mm and 141 mm, respectively. Overall, the steady moisture accumulation throughout the late summer is essential for sustaining local ecosystems and preparing for the upcoming seasonal changes.

August Precipitation Trends in Grapevine

The chart displays monthly precipitation patterns in Grapevine, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5695112107160834396891415659
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Grapevine

In Grapevine, United States, August marks a significant shift in humidity levels, dipping to 66%—the lowest for the year. This decrease continues a trend observed throughout the summer months, where humidity reached its peak at 81% in May and gradually fell to 73% in July. As August transitions into September, the humidity remains on a downward trajectory, hitting 65% in September. This end-of-summer reduction reflects a broader seasonal pattern, with the year starting with notably high humidity levels, averaging around 80% from January to April, before the fluctuation into the drier summer months. The return to higher humidity in November and December hints at a cyclical climate dynamic, influencing both weather patterns and local lifestyles.

August Average Humidity in Grapevine

This chart illustrates the average monthly humidity levels in Grapevine, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Grapevine

In August, Grapevine experiences a consistently high UV Index of 11, placing it in the extreme exposure category. This indicates that protective measures are crucial, as the burn time is reduced to just 10 minutes. Following the trend from previous months, June and July also registered an Index of 11, highlighting a peak in sun intensity during the summer. This pattern of extreme UV levels persists through August, signaling caution for outdoor activities. As the summer winds down, however, a decrease is anticipated in September, moving back to very high levels. For more details on UV exposure throughout the year, check out Grapevine UV Index.

Maximum UV Index Levels in Grapevine for August

The chart shows the monthly maximum UV Index (UVI) for Grapevine in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Grapevine August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Grapevine

In Grapevine, United States, August basks in an impressive 329 hours of sunshine, making it one of the sunniest months of the year. The trend shows a significant surge in sunshine hours as summer arrives, peaking in July with 358 hours before a gentle decline in August. This vibrant summer season, characterized by long, sun-drenched days, sets the tone for outdoor activities and community events. As we transition into September, the sunlight hours decrease to 282, signaling the gradual shift toward fall. Overall, Grapevine experiences a warm embrace of sunlight, particularly in the summer months, creating a perfect backdrop for memorable moments under the sun.

Monthly Sunshine Duration in Grapevine: August Highlighted

The August sunshine duration represents the total number of hours Grapevine experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec175h177h240h259h284h341h358h329h282h263h237h227h
Data source: Grapevine August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Grapevine During August

In Grapevine, United States, the likelihood of sunshine in August stands at a notable 58%, marking it as one of the brighter months of the year. This aligns closely with the sunniest days observed in March, also at 58%, suggesting a mid-year peak in pleasant weather. As we transition from the warm embrace of July to the late summer vibes of September, sunshine becomes increasingly prevalent, with September reaching 68% and October following suit at 67%. This trend highlights a gradual increase in sunny days as summer unfolds, making August a delightful time to enjoy outdoor activities before the temperatures start to cool off in the fall.

Percentage of Sunny Days in August in Grapevine

The chart illustrates the percentage of sunny days in Grapevine throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Grapevine experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%43%58%41%27%47%54%58%68%67%65%49%
Data source: Grapevine August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Grapevine in August

In Grapevine, United States, the daylight duration in August sees a gentle decline, providing about 13 hours of light each day. This marks a gradual shift from the peak summer months, where longer days of 14 hours are experienced in June and July. As the year progresses towards fall, daylight hours begin to decrease, dropping to 12 hours in September and continuing on a downward trend into the shorter days of autumn and winter. The pattern emphasizes a seasonal rhythm, with the longest days giving way to a cozy, early dusk that characterizes the late summer and early fall months.

Average Daylight Hours in Grapevine for August

The chart illustrates the variation in daylight duration in Grapevine throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 13m11h11h 59m13h 1m13h 52m14h 17m14h 3m13h 18m12h 19m11h 18m10h 25m9h 59m
Data source: Grapevine daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Grapevine

In Grapevine, Texas, the winds of August typically usher in a gentle breeze with an average speed of 3.1 m/s (7 mph), marking a slight dip from the more spirited winds of earlier months. As the summer heat intensifies, this lull in wind speed contrasts sharply with the livelier gusts of March and April, where averages peak around 4.7 m/s (10 mph). Following this trend, August experiences a comforting transition—quieting down from the previous months of June and July, which see significant drops to 3.2 m/s (7 mph) and 2.6 m/s (6 mph) respectively. As summer gradually yields to fall, the winds begin to strengthen once again in September, hinting at the arrival of more dynamic weather patterns in the months ahead.

Average August Wind Speed in Grapevine

The chart displays monthly wind speed patterns in Grapevine, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.74.34.74.43.73.22.63.1 m/s2.83.93.83.9
Data source: Grapevine August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Grapevine Compares to Other Months

The weather in Grapevine changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Grapevine and find detailed weather information for every month.

August and January offer strikingly different weather experiences. In August, temperatures soar with a minimum of 20°C (68°F) and can peak at a sweltering 40°C (105°F), making it one of the hottest months of the year, accompanied by a substantial average humidity of 66%. In contrast, January presents a much cooler climate, with average temperatures ranging from a chilly -11°C (12°F) to a mild maximum of 26°C (79°F), and higher humidity levels at 80%. While August sees more precipitation at 96 mm (3.8 in) over 7 days, January brings in 56 mm (2.2 in) across the same number of days, creating distinctly different atmospheres in these two months. For more details, you can check out the weather specifics here: Grapevine weather in January.

August and February present stark contrasts in weather conditions. August boasts warm temperatures, with a minimum of 20°C (68°F) and an average of 29°C (85°F), peaking at a sweltering 40°C (105°F). The month receives approximately 96 mm (3.8 in) of precipitation over about 7 days, coupled with a humidity level of 66%. In contrast, February features much cooler temperatures, ranging from a minimum of -18°C (0°F) to an average of 9°C (49°F), with a maximum of 30°C (86°F). Despite the cold, February has similar precipitation levels at 95 mm (3.7 in) over 9 days, but higher humidity at 79%. For more details on February weather, you can visit Grapevine weather in February.

When comparing the weather in August and March, a stark contrast emerges. August brings warmer temperatures, with a minimum of 20°C (68°F), an average of 29°C (85°F), and scorching highs reaching up to 40°C (105°F). Despite being the hottest month, it also experiences considerable humidity at 66% and about 96 mm (3.8 in) of precipitation over 7 days. In contrast, March offers a cooler climate, starting with a minimum temperature of -6°C (22°F) and averaging around 16°C (60°F), peaking at 32°C (91°F). The month sees more frequent rain, totaling 112 mm (4.4 in) across 10 days, along with higher humidity levels at 78%. For a closer look at March weather specifics, check out Grapevine weather in March.

When comparing the weather in August and April, we see a stark contrast in temperature and humidity. August tends to be much hotter, with average temperatures reaching 29°C (85°F) and highs soaring up to 40°C (105°F). In contrast, April has a more moderate average temperature of 18°C (65°F), with maximum temperatures peaking at 34°C (94°F). While both months experience significant rainfall, April has slightly higher precipitation at 107 mm (4.2 in) over 9 days compared to August's 96 mm (3.8 in) over 7 days. The humidity is also higher in April at 78%, making it feel more muggy than August's 66%. For more detailed information, you can check Grapevine weather in April.

When comparing the weather in August and May, a stark contrast becomes evident. August boasts a significantly warmer climate, with average temperatures soaring to 29°C (85°F) and highs reaching up to a scorching 40°C (105°F). In contrast, May is noticeably cooler, featuring an average temperature of 24°C (75°F) and a maximum of 35°C (96°F). Precipitation patterns also differ, as August experiences 96 mm (3.8 in) of rain over approximately 7 days, while May is wetter, with 160 mm (6.3 in) of rainfall occurring over 12 days. Additionally, August has a lower humidity level of 66% compared to May's higher 81%. For a more detailed view of May's climate conditions, visit Grapevine weather in May.

When comparing the weather in August and June, we see that August tends to be warmer, with average temperatures reaching 29°C (85°F) compared to June's average of 27°C (82°F). Additionally, August experiences higher maximum temperatures, peaking at 40°C (105°F), while June's maximum reaches 38°C (101°F). Precipitation is slightly higher in August, with 96 mm (3.8 in) over 7 days, compared to June's 83 mm (3.3 in) over 8 days. However, June has higher humidity at 78%, compared to August's 66%. For more detailed weather patterns, you can check Grapevine weather in June.

In comparing the weather of August and July, August generally features slightly milder minimum temperatures with a minimum of 20°C (68°F) compared to July's 19°C (66°F). However, July experiences higher maximum temperatures, peaking at 42°C (108°F), while August's maximum reaches 40°C (105°F). Precipitation levels are notably different, as August sees a significant increase in rainfall with 96 mm (3.8 in) over 7 days, in contrast to July's 43 mm (1.7 in) also over 7 days. Additionally, humidity is higher in July at 73%, compared to August's 66%. For a closer look at July's weather patterns, you can check out this link: Grapevine weather in July.

August and September present notable differences in weather patterns. In August, temperatures range from a minimum of 20°C (68°F) to a scorching maximum of 40°C (105°F), with an average of 29°C (85°F). The month sees significant humidity at 66% and experiences precipitation on about 7 days, totaling 96 mm (3.8 in).

In contrast, September offers a cooler climate, with temperatures dipping to a minimum of 10°C (51°F) and peaking at 37°C (100°F), averaging 26°C (79°F). The precipitation slightly decreases to 89 mm (3.5 in), occurring over 8 days, and humidity remains similar at 65%. For more details on September's weather, you can check out Grapevine weather in September.

August and October weather display notable contrasts in temperature and precipitation. In August, temperatures can range from a minimum of 20°C (68°F) to a maximum of 40°C (105°F), with an average of 29°C (85°F) and relatively high humidity at 66%. The month experiences about 96 mm (3.8 in) of precipitation over approximately 7 days. In contrast, October sees a significant drop in minimum temperature to 2°C (35°F), while the average settles at 20°C (68°F) and peaks at 36°C (96°F). The month is wetter, with 141 mm (5.5 in) of rainfall spread across 8 days and a slight increase in humidity to 72%. For a closer look at the specific weather conditions in October, check out Grapevine weather in October.

August and November present a stark contrast in weather conditions. August boasts high temperatures with an average of 29°C (85°F) and highs reaching up to 40°C (105°F), accompanied by a relatively high humidity of 66%. In contrast, November experiences much cooler temperatures, with an average of 13°C (56°F) and a minimum dipping to -5°C (23°F). While August sees 96 mm (3.8 in) of precipitation over about 7 days, November has a lower precipitation total of 56 mm (2.2 in) across 6 days, but with higher humidity at 82%. For more information on November weather specifics, you can visit Grapevine weather in November.

In August, the weather is characterized by warm temperatures, with averages around 29°C (85°F) and highs reaching a scorching 40°C (105°F). The month experiences significant humidity at 66% and total precipitation of 96 mm (3.8 in) over about 7 days. In stark contrast, December brings a considerable drop in temperature, with averages of 11°C (51°F) and a maximum of 28°C (83°F). The air turns considerably colder, with minimum temperatures dipping to -5°C (24°F), and while there's less precipitation at 59 mm (2.3 in), the humidity is higher at 87%. For more details on December’s climate, visit Grapevine weather in December.

Compare Grapevine's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Grapevine

As August unfolds in Grapevine, Texas, the weather takes on a distinct character, marked by warm temperatures and increased humidity. With maximum highs reaching up to 40°C, the heat can feel intense, significantly contrasting with the cooler months of the year. This month often experiences a bit more precipitation, with rainfall occurring on about seven days, providing some relief from the summer warmth. The average temperatures hover around a comfortable 29°C, offering residents and visitors a mix of heat and opportunities to enjoy outdoor activities, albeit with the need to stay hydrated. To discover more about Grapevine's distinctive climate and how it compares throughout the year, visit Grapevine Climate.