August Weather in Monterey, United States

Last updated: February 24, 2025

Experience the delightful weather of Monterey, United States, in August! With a maximum temperature reaching a pleasant 21°C (70°F), the month feels warm yet comfortable, complemented by an average temperature of 14°C (58°F). Nights may get a bit cooler, dipping to a minimum of 12°C (54°F). Notably, rainfall is minimal, with only 5 mm (0.2 in) of precipitation recorded over 0 rainy days, ensuring ample sunshine for outdoor adventures. With a humidity level of 54%, August in Monterey offers a refreshing coastal breeze, making it an ideal time to explore this picturesque destination.

August Temperature in Monterey

In August, Monterey experiences a delightful shift in temperatures that heralds the peak of summer. With minimums averaging 12°C (54°F) and maximums reaching up to 21°C (70°F), the weather is comfortably warm, striking a balance that invites both relaxation and exploration. The average temperature hovers around 14°C (58°F), making it perfect for enjoying the scenic coastline or indulging in local festivities. This month marks a notable increase from the cooler earlier summer months, yet it remains milder compared to the sweltering temperatures seen in many other regions. As summer begins to wane, August provides a delightful window of pleasant weather, perfect for capturing the beauty of Monterey.

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

The chart illustrates August temperature patterns in Monterey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535252525355555859585654
Data source: Temperature data for Monterey 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 Monterey

In August, Monterey experiences a marked decline in precipitation, with a mere 5 mm (0.2 in) recorded, maintaining the trend of minimal rainfall that began in June and July. Notably, this month sees zero precipitation days, indicating dry conditions typical of late summer. This dryness contrasts sharply with the wetter months of January through March, where the region receives substantial rainfall, peaking at 112 mm (4.4 in) in January. As the year progresses into fall, a gradual increase in rainfall is anticipated, as evidenced by the October figures rising to 21 mm (0.8 in), offering a reminder that the coastal climate is characterized by significant seasonal variability.

August Precipitation Trends in Monterey

The chart displays monthly precipitation patterns in Monterey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec11210693352654542142105
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Monterey

In Monterey, United States, August marks a notable shift in humidity, with levels dropping to a comfortable 54%. This is part of a clear trend as the summer progresses: humidity begins at a high of 82% in January, gradually decreasing each month to reach its lowest point in August. The decline from 71% in May to 58% in July reflects the region's transition toward drier summer conditions. As September approaches, there's only a slight increase in humidity to 55%, indicating that the warm, enjoyable weather of late summer persists. Overall, this downward trend emphasizes Monterey's refreshing coastal climate, perfect for those seeking a mild retreat.

August Average Humidity in Monterey

This chart illustrates the average monthly humidity levels in Monterey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Monterey

In August, Monterey experiences one of its peak UV Index levels, consistently reaching an extreme rating of 11, similar to the preceding months of June and July. During this time, outdoor enthusiasts should exercise caution, as the burn time is a mere 10 minutes, underscoring the necessity for sun protection. Compared to the earlier months, where the UV Index gradually climbed from a moderate 4 in January to a striking 11 by May, August maintains this high level, indicating a trend of increased sun intensity during the summer. As the season transitions into September, the UV Index begins to taper off, returning to a very high rating of 9, emphasizing the need for vigilance in sun safety during these warmer months. For more information on the UV Index, check out Monterey UV Index.

Maximum UV Index Levels in Monterey for August

The chart shows the monthly maximum UV Index (UVI) for Monterey 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.
JanFebMarAprMayJunJulAugSepOctNovDec4589111111119753
Data source: Monterey 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 Monterey

In Monterey, August continues to bask in the warm glow of summer, with a remarkable 347 hours of sunshine, though slightly less than the peak of 377 hours in July. This pattern highlights a gentle tapering as the summer draws to a close, transitioning into September's 309 hours. As the months progress, the data illustrates a clear trend: the region thrives under bright skies from January's modest 164 hours to a spectacular peak in midsummer, followed by a steady decline as autumn approaches. This rhythm of sun-soaked days contributes to Monterey's unique charm, making it a perennial favorite for those seeking a vibrant coastal retreat.

Monthly Sunshine Duration in Monterey: August Highlighted

The August sunshine duration represents the total number of hours Monterey 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.
JanFebMarAprMayJunJulAugSepOctNovDec164h222h268h301h354h369h377h347h309h287h235h210h
Data source: Monterey August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Monterey During August

Monterey experiences a notable trend in its sunny weather throughout the year, with August showing a 52% chance of sunshine. This marks a slight increase from the previous month, July, which sees only a 34% chance of clear skies. As summer peaks, the likelihood of sunny days begins to climb, transitioning from the more overcast days of June and spring. Interestingly, September follows closely, boasting a 58% chance of sun, indicating that the clear weather often extends into early fall. Overall, August can be characterized by a pleasant balance of sunny intervals amid the coastal breezes, making it a delightful time for both locals and visitors to enjoy the seaside charm.

Percentage of Sunny Days in August in Monterey

The chart illustrates the percentage of sunny days in Monterey 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 Monterey experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%58%50%43%51%48%34%52%58%62%57%43%
Data source: Monterey August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Monterey in August

In Monterey, United States, August marks a subtle transition as daylight begins to wane, offering about 13 hours of sunlight. This slight decline follows the peak summer months of June and July, which boast a maximum of 14 hours of daylight. After basking in those long, sun-soaked days, August serves as a gentle reminder that the days are gradually shortening, paving the way for the shifting seasons ahead. As summer recedes and autumn approaches, residents can enjoy the warm evenings while preparing for the cozy months to come, accentuating the natural rhythm of daylight throughout the year.

Average Daylight Hours in Monterey for August

The chart illustrates the variation in daylight duration in Monterey throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 58m10h 51m11h 59m13h 9m14h 7m14h 36m14h 20m13h 28m12h 21m11h 12m10h 11m9h 41m
Data source: Monterey daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Monterey

In Monterey, United States, the August wind brings a gentle breath of tranquility, averaging just 3.4 m/s (8 mph), marking it as the least blustery month of the year. As the summer winds down, this decline reflects a broader trend of diminishing wind speeds from the earlier summer months, peaking in May at 5.0 m/s (11 mph). Following this peak, wind speeds gradually ease, with July recording 3.8 m/s (9 mph), and August ushering in even calmer breezes. This serene transition leads into a slight uptick in wind speeds in the fall, suggesting that while August may offer a quieter wind experience, exciting shifts are just around the corner as the season changes.

Average August Wind Speed in Monterey

The chart displays monthly wind speed patterns in Monterey, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.65.14.74.75.04.53.83.4 m/s3.34.34.05.3
Data source: Monterey August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Monterey Compares to Other Months

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

Comparing the weather in August and January reveals significant differences. August tends to be warmer with average temperatures around 14°C (58°F) and maximums reaching up to 21°C (70°F). In contrast, January is cooler, with average temperatures of 12°C (54°F) and maximums peaking at 18°C (64°F). Additionally, August is quite dry, experiencing just 5 mm (0.2 in) of precipitation over zero rainy days, while January sees notably more rain, averaging 112 mm (4.4 in) across approximately 10 days. The humidity also differs, with August at 54% compared to January's higher 82%. For a more detailed look at Monterey’s January weather, you can visit Monterey weather in January.

August and February present contrasting weather patterns. In August, temperatures are generally milder, with a range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), and remarkably low precipitation at just 5 mm (0.2 in) over 0 days, resulting in a comfortable humidity level of 54%. Conversely, February experiences cooler temperatures, with an average of 11°C (53°F) and a maximum of 18°C (65°F). However, it is significantly wetter, recording 106 mm (4.2 in) of precipitation over 10 days, accompanied by higher humidity at 84%. These differences highlight the warm, dry conditions of summer compared to the cool, damp climate of winter. For more details, check out Monterey weather in February.

In comparison to August, March in Monterey tends to be cooler and wetter. The average temperature in August hovers around 14°C (58°F), with maximums reaching 21°C (70°F) and little to no precipitation. In contrast, March has a lower average temperature of 11°C (52°F), with maximums up to 17°C (63°F) and significant rainfall of 93 mm (3.7 in) spread over 12 days. The higher humidity of March at 82% also contrasts sharply with the more comfortable 54% humidity in August. For more detailed information on March weather, you can visit Monterey weather in March.

August typically enjoys warmer and more stable weather compared to April. The average temperature in August reaches around 14°C (58°F), with highs of 21°C (70°F) and minimal rainfall of just 5 mm (0.2 in) over 0 days, making it a dry month with less humidity at 54%. In contrast, April experiences cooler temperatures, with an average of 11°C (53°F) and highs peaking at 19°C (67°F). Additionally, April is significantly wetter, with 35 mm (1.4 in) of rainfall spread over 6 days and a higher humidity level of 78%. For more details on April conditions, visit Monterey weather in April.

When comparing the weather in August to that in May, it’s clear that August tends to be warmer and drier. In August, temperatures range from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average temperature of 14°C (58°F). In contrast, May sees cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 17°C (63°F), averaging 12°C (53°F). Notably, May experiences significantly higher precipitation, totaling 26 mm (1.0 in) over 4 days, while August boasts a much drier climate with only 5 mm (0.2 in) and no recorded rainy days. Humidity levels also differ, with May exhibiting a higher humidity at 71%, compared to 54% in August. This makes August a more comfortable month for outdoor activities, while May may feel more humid and wetter. For more details on weather conditions, you can refer to Monterey weather in May.

When comparing the weather in August and June, August tends to be slightly warmer with average temperatures ranging from 14°C (58°F) to a max of 21°C (70°F), while June offers a broader range, reaching up to 25°C (78°F) but with a lower average of 13°C (55°F). Despite both months receiving the same amount of precipitation (5 mm or 0.2 in) over zero rainy days, June has a higher humidity level at 64%, compared to August's 54%. This means that while August is milder and drier, June can feel a bit more humid and warmer during the day. For more details on June weather, visit Monterey weather in June.

In August, the weather is slightly warmer than in July, with minimum temperatures averaging 12°C (54°F) compared to July's 11°C (51°F). The average temperature for August reaches 14°C (58°F), which is a bit higher than July's average of 13°C (56°F). Additionally, August boasts a maximum temperature of 21°C (70°F), while July has a maximum of only 16°C (61°F). Both months experience minimal precipitation, with August recording 5 mm and July slightly less at 4 mm, but neither month sees any rainy days. Humidity levels are also a bit lower in August at 54%, compared to 58% in July. For those interested in specifics, check out Monterey weather in July.

August and September present subtle yet distinct differences in weather patterns. August typically sees temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), with an average around 14°C (58°F). Precipitation is minimal at 5 mm (0.2 in) over the month and humidity levels hover around 54%. In contrast, September experiences slightly warmer conditions, with temperatures ranging from 12°C (54°F) to a high of 29°C (84°F) and an average of 15°C (59°F). The precipitation remains low at 4 mm (0.2 in) with no rainy days, and humidity climbs slightly to 55%. For more details on September weather, check out Monterey weather in September.

In comparing the weather of August and October, we see some distinct differences. August typically experiences a milder climate, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), accompanied by minimal precipitation of just 5 mm and an average humidity of 54%. In contrast, October offers slightly cooler nights, with a minimum temperature of 10°C (51°F) and warmer daytime highs reaching up to 25°C (77°F). However, October is wetter, with a total precipitation of 21 mm over two days, leading to a higher humidity level of 62%. For more detailed information, you can check out Monterey weather in October.

In August, the weather is generally milder, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F) and very little precipitation, averaging only 5 mm (0.2 in) across the month with no rainy days. The humidity level during this month is relatively comfortable at 54%.

In contrast, November sees cooler temperatures with a minimum of 8°C (46°F) and a maximum of 20°C (68°F), along with significantly higher precipitation, totaling 42 mm (1.7 in) over five rainy days. The humidity in November also increases to 78%, making the air feel much moister. For a closer look at what you can expect, check out Monterey weather in November.

In August, the weather tends to be mild with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 21°C (70°F), accompanied by low precipitation of just 5 mm (0.2 in) and minimal humidity at 54%. In contrast, December experiences cooler temperatures, with a minimum of 8°C (47°F) and an average high of 21°C (69°F), but significantly more rain, measuring 105 mm (4.1 in) and occurring on approximately 10 days. The humidity also rises in December to 80%, creating a stark contrast between the two months. For more details, you can check Monterey weather in December.

Compare Monterey's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Monterey

As summer winds down, August in Monterey offers a delightful reprieve from the heat, characterized by mild temperatures and minimal precipitation. Unlike the more humid and variable weather of earlier months, August typically enjoys a pleasant average climate with refreshing breezes, making it an ideal time for outdoor activities along the coast. With the humidity levels sitting comfortably at 54% and keenly low chances of rain, visitors can fully embrace the stunning scenery without worrying about sudden downpours. To learn more about how this month compares to others throughout the year, explore the detailed insights at Monterey Climate.