August Weather in Monterrey, Mexico

Last updated: April 22, 2025

In Monterrey, Mexico, August brings a warm embrace, with maximum temperatures soaring to 36°C (97°F) and an average of a comfortable 27°C (81°F). Nights offer a respite, dipping to a minimum of 16°C (61°F). While the month sees 32 mm (1.2 in) of rain spread across five days, the overall humidity lingers at a high 71%, creating a vibrant, but occasionally muggy atmosphere. Embrace the summer in Monterrey, where sun and rain dance together to create a lively backdrop for summer activities.

August Temperature in Monterrey

In August, Monterrey, Mexico, experiences warm and inviting temperatures, making it a popular time for visitors. The average temperature hovers around 27°C (81°F), with highs reaching up to 36°C (97°F), which is reminiscent of the preceding summer months. While nights begin to cool slightly, with a minimum of 16°C (61°F), the overall climate remains quite pleasant. This month marks a subtle transition as the heat of summer lingers, yet hints of the approaching fall contribute to a comfortable warmth. August serves as a delightful midpoint where residents and tourists alike can enjoy outdoor activities under mostly sunny skies, embracing the vibrant energy of the city before the cooler temperatures set in for autumn.

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

The chart illustrates August temperature patterns in Monterrey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec586570778283808176736660
Data source: Temperature data for Monterrey generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Monterrey

In August, Monterrey experiences a notable surge in precipitation, receiving 32 mm (1.2 in) of rain over five days. This marks a significant drop from July's 49 mm (1.9 in), yet it remains a substantial amount in the context of the year, indicating a continued rainy season. The wettest months typically fall in mid-summer, with August retaining its status as a pivotal time for rainfall as the city transitions toward the latter part of the rainy season. By September, precipitation levels peak again at 61 mm (2.4 in), suggesting that August serves as a precursor to even wetter conditions ahead, highlighting a distinct pattern of increasing moisture in late summer.

August Precipitation Trends in Monterrey

The chart displays monthly precipitation patterns in Monterrey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec669372449326137613
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Monterrey

In August, Monterrey, Mexico experiences a notable humidity level of 71%, which represents a slight decrease from the peak of 73% seen in July. As summer transitions into fall, humidity levels in Monterrey remain relatively high, making the air feel more sultry. This is part of a larger trend: after a gradual dip from the start of the year through April, humidity begins to rise again in June, culminating in high figures throughout the late summer and into the fall months. As September approaches, humidity escalates further to 82%, signaling the onset of the wetter season, while the city's residents brace for even more moisture in the coming months.

August Average Humidity in Monterrey

This chart illustrates the average monthly humidity levels in Monterrey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec70%62%53%48%52%64%73%71%82%83%82%84%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Monterrey

In August, Monterrey, Mexico, maintains a UV Index of 13, placing it in the extreme exposure category, with a brief burn time of just 10 minutes. This reflects a consistent trend seen throughout the summer months, where the UV Index remains high, peaking at 14 in April and then stabilizing between 13 from May through September. Such intensity poses a significant risk for sunburn and requires vigilant sun protection for residents and visitors alike. As the year progresses, the UV levels gradually decline by October, highlighting the importance of awareness during these peak months. For a detailed understanding of UV exposure, check out the Monterrey UV Index.

Maximum UV Index Levels in Monterrey for August

The chart shows the monthly maximum UV Index (UVI) for Monterrey 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.
JanFebMarAprMayJunJulAugSepOctNovDec710121413131313131187
Data source: Monterrey 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 Monterrey

August in Monterrey, Mexico, shines brightly with 344 hours of dazzling sunlight, marking a continuation of the summer's luminous embrace. This month captures the essence of the season, though slightly mellowed compared to July's peak of 357 hours. As summer transitions toward autumn, August maintains a strong presence of sunshine, nestled between the high points of early summer and the gradual decline that follows. The trend of increasing daylight from January's 217 hours that ascends to May's 353 hours not only accentuates Monterrey's vibrant summer landscape but also serves to remind visitors of the invigorating warmth that this city consistently offers. As the days begin to shorten in September, with only 294 hours anticipated, August remains a sun-soaked highlight on Monterrey's calendar.

Monthly Sunshine Duration in Monterrey: August Highlighted

The August sunshine duration represents the total number of hours Monterrey 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.
JanFebMarAprMayJunJulAugSepOctNovDec217h260h309h323h353h350h357h344h294h285h269h271h
Data source: Monterrey August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Monterrey During August

In Monterrey, Mexico, the likelihood of sunny weather takes a noticeable dip in August, with the chance of sun falling to just 49%. This decline marks the end of a gradual downward trend from the sunnier months of May and June, which boast high probabilities of sunshine at 76% and 63%, respectively. Following the typically bright early summer months, July also sees a significant drop to 51%, only slightly above August's figures. As the region transitions into the later summer and early autumn months, September rebounds slightly with a 52% chance of sunshine, hinting at the variability of Monterrey's weather patterns. Overall, August stands out as a month where sunshine is less assured, encouraging locals and visitors alike to stay prepared for those occasional cloudy days.

Percentage of Sunny Days in August in Monterrey

The chart illustrates the percentage of sunny days in Monterrey 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 Monterrey experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec71%69%63%69%76%63%51%49%52%68%65%59%
Data source: Monterrey August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Monterrey in August

In Monterrey, Mexico, the daylight duration experiences a notable ebb and flow throughout the year, peaking in the vibrant months of May to July with a generous 13 hours of sunlight. As we transition into August, the daylight starts to wane slightly, offering 12 hours of light—a reminder that summer is giving way to the early whispers of autumn. This gradual shift in daylight continues into September, maintaining the same duration before a steady decline, with daylight dwindling to 10 hours by November. This pattern highlights the sun's shifting presence, enriching the diverse experiences Monterrey has to offer across its sun-soaked seasons.

Average Daylight Hours in Monterrey for August

The chart illustrates the variation in daylight duration in Monterrey throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 44m11h 17m12h 1m12h 46m13h 23m13h 41m13h 31m12h 58m12h 15m11h 31m10h 52m10h 33m
Data source: Monterrey daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Monterrey

In Monterrey, Mexico, August experiences a gentle breeze, with average wind speeds of 1.9 m/s (4 mph), mirroring the calming conditions of late summer. As the year progresses, wind patterns reveal intriguing trends; after a slight uptick in June to 2.6 m/s (6 mph), the wind speed gracefully tapers off in July and remains consistent into August, suggesting a period of stability. Following August, the winds pick up slightly in September at 2.1 m/s (5 mph), before stabilizing again in the autumn months. This rhythmic dance of breezes reflects Monterrey's unique climate, where summer's warmth is often tempered by mild wind currents, creating a perfect backdrop for outdoor activities.

Average August Wind Speed in Monterrey

The chart displays monthly wind speed patterns in Monterrey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.92.42.32.32.61.81.9 m/s2.11.91.71.6
Data source: Monterrey August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Monterrey Compares to Other Months

The weather in Monterrey 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 Monterrey and find detailed weather information for every month.

August and January present contrasting weather conditions. August typically experiences warm temperatures, with a minimum of 16°C (61°F) and an average high of around 27°C (81°F), peaking at 36°C (97°F). This month sees about 32 mm (1.2 in) of precipitation spread over five days, accompanied by relatively high humidity at 71%. In stark contrast, January brings much cooler weather, starting at a minimum of -1°C (30°F) and averaging a comfortable 15°C (59°F), with a maximum reaching up to 30°C (86°F). Notably, January is drier, receiving only 6 mm (0.2 in) of precipitation over none of the days, and maintaining a similar humidity level at 70%. For more details, you can check Monterrey weather in January.

August and February present contrasting weather conditions. In August, temperatures soar, with averages around 27°C (81°F) and highs reaching up to 36°C (97°F), accompanied by higher humidity at 71%. Precipitation is relatively light, at about 32 mm (1.2 inches) over five days. In contrast, February brings much cooler temperatures, with an average of 18°C (65°F) and a minimum of 0°C (31°F). Precipitation is minimal in February, with just 6 mm (0.2 inches) occurring over a single day, and humidity is lower at 62%. For more details, you can check Monterrey weather in February.

In August, the weather in Monterrey is characterized by warmer temperatures, with highs reaching up to 36°C (97°F) and an average of 27°C (81°F). The humidity is notably higher at 71%, contributing to a sultry atmosphere, even with relatively modest precipitation of 32 mm (1.2 in) over about 5 days. In contrast, March offers a cooler climate, featuring average temperatures around 21°C (71°F) and a minimum of 5°C (42°F). While temperatures can spike to 38°C (101°F), March experiences significantly less rainfall, with only 9 mm (0.3 in) over just one day and a lower humidity level of 53%. For a comprehensive look at what to expect, check out Monterrey weather in March.

When comparing the weather in April and August, notable differences emerge in temperature, precipitation, and humidity. April features milder temperatures with a minimum of 9°C (49°F), an average of 25°C (77°F), and a maximum of 37°C (99°F). The month is characterized by relatively low precipitation, recording only 3 mm (0.1 in) across just 1 day, and a humidity level of 48%. In contrast, August is considerably warmer, with a minimum of 16°C (61°F), an average of 27°C (81°F), and a maximum of 36°C (97°F). Although it experiences slightly more rain, totaling 32 mm (1.2 in) over 5 days, the humidity rises to 71%. This makes August feel more humid and oppressive compared to the drier and more comfortable April weather. For more details on April weather, check out Monterrey weather in April.

In August, the weather tends to be warm and humid, with average temperatures around 27°C (81°F) and maximums reaching up to 36°C (97°F). The month experiences about 32 mm of precipitation over five days, contributing to the high humidity of 71%. In contrast, May offers slightly cooler temperatures with an average of 28°C (82°F) but can peak at an impressive 40°C (104°F), making it hotter at times. The rainfall in May is minimal, totaling only 7 mm over just one day, resulting in a much lower humidity of 52%. For more information on the specifics of May weather, you can check Monterrey weather in May.

In comparing the weather of August and June, June exhibits slightly cooler temperatures, with an average of 28°C (83°F) compared to August's 27°C (81°F). However, June can reach a maximum high of 40°C (104°F), which is significantly hotter than August's maximum of 36°C (97°F). Precipitation is also slightly lower in June, totaling 24 mm (0.9 in) over 4 days compared to August's 32 mm (1.2 in) over 5 days. Humidity levels are higher in August at 71%, while June has a more comfortable humidity of 64%. For more details, you can check Monterrey weather in June.

In comparing the weather of July and August, we can observe some notable differences. July typically experiences slightly warmer nights with a minimum temperature of 18°C (65°F) compared to August's 16°C (61°F). However, both months have the same average temperature of 27°C (81°F), with July reaching a higher maximum of 37°C (99°F) versus August's 36°C (97°F). Precipitation levels are also higher in July, totaling 49 mm (1.9 in) over 8 days, whereas August sees less rainfall at 32 mm (1.2 in) over just 5 days. Humidity remains relatively similar, with July at 73% and August at 71%. For more details on the weather during July, you can check Monterrey weather in July.

In August, the weather typically features warmer temperatures with an average of 27°C (81°F) and maximum highs reaching 36°C (97°F). Despite this warmth, August sees relatively low precipitation at 32 mm (1.2 in) over about 5 days and a humidity level of 71%. In contrast, September experiences slightly cooler temperatures with an average of 25°C (76°F), although maximum temperatures can still rise to 37°C (99°F). The month is wetter than August, with 61 mm (2.4 in) of precipitation across about 9 days and a higher humidity level of 82%. For more detailed information on the weather in September, you can visit Monterrey weather in September.

In comparing the weather of August and October, we see notable differences in temperature and humidity. August typically enjoys warmer conditions with an average temperature of 27°C (81°F) and a maximum reaching up to 36°C (97°F). In contrast, October experiences cooler temperatures, with an average of 23°C (73°F) and minimum lows of 8°C (47°F). Both months receive similar levels of precipitation, with August recording 32 mm and October slightly higher at 37 mm, occurring over the same number of days—five. Additionally, the humidity increases from 71% in August to 83% in October, making October feel comparatively more humid. For more detailed insights on the weather in October, visit Monterrey weather in October.

In August, the weather is characterized by warm temperatures, with a minimum of 16°C (61°F) and an average of 27°C (81°F), peaking at a scorching 36°C (97°F). The humidity stands at a comfortable 71%, and the month sees approximately 32 mm (1.2 in) of rainfall over about five days. In contrast, November brings a noticeable chill with temperatures dropping to a minimum of -2°C (28°F) and an average of 19°C (66°F), rising to a maximum of 33°C (91°F). Despite a higher humidity level of 82%, November experiences significantly less rainfall, totaling only 6 mm (0.2 in) over just one day. For more detailed insights into the weather during this month, you can check Monterrey weather in November.

August and December in Monterrey present a striking contrast in weather patterns. August typically experiences much warmer temperatures, with an average of 27°C (81°F) and maximums reaching up to 36°C (97°F), along with high humidity levels at 71%. Precipitation is relatively frequent, occurring on about 5 days with a total of 32 mm (1.2 in). In contrast, December features much cooler conditions, with temperatures dropping to a minimum of -2°C (28°F) and averaging around 15°C (60°F), while the maximum temperature can still reach 30°C (87°F). The month sees significantly less rainfall, averaging only 13 mm (0.5 in) over just 2 days, and experiences higher humidity at 84%. For more details on December weather, visit Monterrey weather in December.

Compare Monterrey's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Monterrey

As August rolls into Monterrey, the city's weather reaches some of its peak temperatures, creating a warm and inviting atmosphere. With an average temperature that climbs steadily, the month stands out with its balmy days and mild nights, contrasting sharply with the cooler months that precede it. While humidity levels remain elevated, a few days of light precipitation provide much-needed relief from the heat, adding a refreshing touch to the late summer days. This unique blend of warmth and occasional rainfall makes August a vibrant time to experience the charm of Monterrey. For more insights into the city's climate, visit Monterrey Climate.