July Weather in San Martin, Peru

Last updated: August 27, 2025

July in San Martin, Peru offers a mild and pleasant climate, characterized by a maximum temperature of 28°C (82°F) and an average of 21°C (70°F). With a minimum temperature dipping to 15°C (60°F), the region enjoys comfortable days and cool nights. Rainfall is minimal, with only 4 mm (0.1 in) recorded over the month and just one day of precipitation. The humidity level hovers around 71%, adding a slight dampness to the air, ensuring that visitors can revel in the idyllic weather while exploring the stunning landscapes and vibrant culture of this enchanting part of Peru.

July Temperature in San Martin

In July, San Martin, Peru experiences a noticeable dip in temperatures as the region transitions into a cooler phase of the year. The minimum temperature falls to a brisk 15°C (60°F), while the average hovers around a comfortable 21°C (70°F), contrasting with the warmer months preceding it. Although the maximum temperature reaches 28°C (82°F), it's clear that July marks a shift towards milder conditions. This trend continues into August, where temperatures remain comparable, suggesting a pleasantly cool climate ideal for outdoor exploration. As the month unfolds, visitors can enjoy the refreshing weather that invites both relaxation and adventure in this vibrant Peruvian locale.

July Weather in San Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, July typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec788080787572696869707175
Data source: Temperature data for San Martin 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.

July Precipitation in San Martin

In July, San Martin experiences a notable dip in precipitation, with only 4 mm (0.1 in) of rain falling over just a single day. This marks one of the driest months of the year, following the sharp decline in rainfall that begins in June. The month reflects a stark contrast to the earlier rains of March, where 157 mm (6.2 in) drench the region, setting a trend of decreasing precipitation as the dry season progresses. As July rolls in, the lush landscapes transition, emphasizing the region's shift toward an arider climate that continues through August. With such little rainfall, the flora adapts accordingly, showcasing the resilience of nature in this tropical environment.

July Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In San Martin, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec206515733136423101430
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in San Martin

In July, the humidity in San Martin, Peru significantly decreases to 71%, marking a notable shift from the high levels experienced earlier in the year. This drop from the preceding months, where humidity hovered around 84% in June and above 86% from January to May, suggests a transition into a drier season. Interestingly, humidity remains steady in August at the same 71%, indicating that the dry conditions can extend through late winter. Following this period, a gradual rise in humidity is observed as the year progresses, climbing to 75% in September and further to 79% in November, ultimately returning to more humid levels by December. This pattern highlights a clear seasonal cycle in San Martin’s climate, transitioning from high humidity in the early months to drier conditions mid-year.

July Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in San Martin is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%87%87%86%89%84%71%71%75%77%79%86%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in San Martin

In July, San Martin, Peru, sees a UV Index of 11, maintaining its position in the extreme exposure category with a consistent burn time of just 10 minutes. This trend continues from the previous month, showing a plateau in UV intensity compared to the earlier months of the year, where indices peaked dramatically at 14 to 16 from January through March. As the year progresses, while the intensity slightly dips, it remains crucial for residents and visitors alike to stay vigilant against sun exposure. For those planning outdoor activities, understanding these trends is essential for safety—explore more at San Martin UV Index.

Maximum UV Index Levels in San Martin for July

The chart shows the monthly maximum UV Index (UVI) for San Martin in July, 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. In July, the maximum UV index in San Martin typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516151311111214141413
Data source: San Martin July 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.

July Sunshine in San Martin

In the stunning landscape of San Martin, Peru, July brings a delightful embrace of sunshine with 325 hours of radiant light, perfectly complementing the region's vibrant natural beauty. Following a gradual increase from the 308 hours recorded in March, the month stands out as part of a robust summer trend, where sunlight peaks in both August and May. This consistent exposure to the sun during the winter months fosters a warm atmosphere, enticing both locals and visitors to revel in outdoor pursuits. As the year progresses, the area's impressive sunlight hours serve as a testament to San Martin's inviting climate, ensuring each month is equally captivating.

Monthly Sunshine Duration in San Martin: July Highlighted

The July sunshine duration represents the total number of hours San Martin experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec271h299h308h318h329h312h325h330h319h327h317h338h
Data source: San Martin July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Martin During July

In July, San Martin, Peru enjoys a 60% chance of sunny weather, marking a notable peak in the region's climatic patterns. This month stands out as a transition point, following a gradual increase in sunshine from May's 62%. While June experiences a dip to 44%, July's forecast not only surpasses it but also outshines the preceding months. The trend highlights the region's shift towards brighter skies, setting a favorable stage for outdoor activities and exploration. As the year progresses into August, the likelihood of sun dips to 45%, suggesting that July offers one of the richest opportunities for basking in the sun's warmth in San Martin.

Percentage of Sunny Days in July in San Martin

The chart illustrates the percentage of sunny days in San Martin throughout the year, with July 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 San Martin experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%31%25%38%62%44%60%45%52%35%30%28%
Data source: San Martin July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Martin in July

In San Martin, Peru, July marks a continuation of the mid-year trend with approximately 11 hours of daylight. This is consistent with the preceding months of June and April, where daylight averages remain steady at 11 hours. The early part of the year, from January to March, showcases a more generous 12 hours, providing ample sunlight for activities. As days start to lengthen again in late September, the natural rhythm of daylight underscores the region's unique climate, shifting gradually to longer days as the year progresses. This consistent pattern offers residents and visitors alike a balanced mix of vibrant daylight and twilight throughout the seasons.

Average Daylight Hours in San Martin for July

The chart illustrates the variation in daylight duration in San Martin throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 22m12h 15m12h 6m11h 58m11h 51m11h 48m11h 50m11h 55m12h 3m12h 12m12h 20m12h 24m
Data source: San Martin daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in San Martin

In July, San Martin, Peru, experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph). This slight dip from the preceding month of June indicates a stable wind pattern that continues to grace the region, as wind speeds remain consistent across the summer months. Notably, wind speeds begin to pick up again in August, reaching 3.7 m/s (8 mph), suggesting a seasonal trend where the wind gains momentum as the year progresses. Overall, July's breezes are a refreshing feature of the landscape, setting the stage for the slightly more vigorous winds that follow, inviting residents and visitors alike to embrace the tranquil yet invigorating atmosphere of San Martin during this time.

Average July Wind Speed in San Martin

The chart displays monthly wind speed patterns in San Martin, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.13.32.53.33.53.53.4 m/s3.73.73.73.53.5
Data source: San Martin July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in San Martin Compares to Other Months

Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in July and January, notable differences emerge. July features milder temperatures with a minimum of 15°C (60°F) and an average of 21°C (70°F), while the maximum reaches 28°C (82°F). Additionally, July is relatively dry, with only 4 mm of precipitation over just one day and a humidity level of 71%. In contrast, January offers warmer conditions, with temperatures ranging from a minimum of 19°C (67°F) to an average of 26°C (78°F) and highs reaching up to 35°C (94°F). The month also sees more rainfall, totaling 20 mm across four days, accompanied by increased humidity at 89%. For further details, check San Martin weather in January.

The weather in July is characterized by milder temperatures, with a minimum of 15°C (60°F) and an average of 21°C (70°F), reaching a maximum of 28°C (82°F). In contrast, February experiences warmer conditions, with a minimum of 20°C (68°F), an average of 27°C (80°F), and a peak temperature of 35°C (96°F). July sees very little precipitation, with only 4 mm (0.1 in) over just one day, while February is much wetter, receiving 65 mm (2.5 in) over nine days. Additionally, February has higher humidity levels at 87%, compared to July's humidity of 71%. For more detailed information about February weather, you can visit San Martin weather in February.

In comparing the weather between July and March, July offers a milder climate, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F) and only 4 mm of precipitation over just one day, leading to a relatively comfortable humidity level of 71%. In contrast, March is much warmer, with temperatures soaring from a minimum of 21°C (69°F) to a maximum of 36°C (96°F). This month experiences significant rainfall, totaling 157 mm over nine days, contributing to higher humidity levels at 87%. For more detailed insights on March weather, you can visit San Martin weather in March.

In comparing the weather between July and April, we see distinct differences in temperature and precipitation. July is characterized by milder temperatures, with a minimum of 15°C (60°F) and an average of 21°C (70°F), while April experiences warmer conditions, with a minimum of 18°C (65°F) and an average of 25°C (78°F). Notably, April is much wetter, receiving 33 mm (1.3 in) of rainfall over five days compared to July's scant 4 mm (0.1 in) over just one day. Additionally, April has higher humidity at 86%, in contrast to July's 71%. For more details on April's climate, you can visit San Martin weather in April.

In comparing the weather patterns of July and May, we can observe some notable differences. July experiences cooler temperatures, with a minimum of 15°C and a maximum of 28°C, while May is warmer, averaging between 16°C at its lowest and reaching up to 33°C. Furthermore, May sees significantly higher precipitation, with 13 mm over four days, compared to July’s minimal 4 mm of rainfall across just one day. The humidity levels also vary, as July maintains a comfortable 71%, whereas May is more humid at 89%. For a closer look at conditions during May, you can visit San Martin weather in May.

In comparison to June, July experiences slightly milder temperatures, with an average of 21°C (70°F) compared to June's 22°C (72°F). While July's maximum temperature peaks at 28°C (82°F), June reaches a warmer high of 31°C (88°F). Precipitation is less frequent in July, with only 4 mm (0.1 in) over one day, whereas June sees 6 mm (0.2 in) spread across two days. Humidity levels are also lower in July at 71% compared to June's 84%, making the weather feel somewhat drier. For more detailed weather insights, you can visit San Martin weather in June.

In comparing the weather between July and August, it is noteworthy that both months exhibit similar temperature ranges, with July featuring an average of 21°C (70°F) and a maximum of 28°C (82°F), while August has a slightly cooler average of 20°C (69°F) with a comparable maximum of 28°C (83°F). July experiences a bit more precipitation, with 4 mm over one day, whereas August sees minimal rain at just 2 mm with no recorded days of precipitation. Humidity remains consistent at 71% for both months, creating a humid atmosphere throughout. For more detailed information on August weather, you can visit San Martin weather in August.

July and September offer mild weather, but there are some notable differences. In July, temperatures range from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), with an average of 21°C (70°F) and a low level of precipitation at just 4 mm over one day. In contrast, September sees slightly warmer conditions, with temperatures ranging from 16°C (60°F) to 29°C (85°F), and an average still around 21°C (69°F). Precipitation in September drops even further to 3 mm and no rainy days are recorded. Humidity is also a bit higher in September at 75%, compared to July’s 71%. For more detailed insights on September weather in the region, check this link: San Martin weather in September.

In July, the weather is generally mild with average temperatures hovering around 21°C (70°F), peaking at a maximum of 28°C (82°F). This month experiences minimal precipitation, only about 4 mm (0.1 in) over just one day, and a humidity level of 71%. In contrast, October brings slightly warmer temperatures, with a minimum of 16°C (61°F) and a maximum reaching 30°C (86°F). Precipitation increases to 10 mm (0.4 in) over two days, and humidity rises to 77%. For more specific details, you can check San Martin weather in October.

In July, the weather is characterized by a mild average temperature of 21°C (70°F) and limited precipitation, with only 4 mm (0.1 in) spread over just one day. The humidity hovers around a comfortable 71%. In contrast, November brings slightly warmer temperatures, with an average of 22°C (71°F) and a higher maximum of 31°C (88°F), though this also coincides with increased rainfall of 14 mm (0.6 in) across three days, leading to higher humidity at 79%. For more specific details, you can check San Martin weather in November.

In July, the weather is generally mild, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F) and an average of 21°C (70°F). The month experiences low precipitation, with only 4 mm (0.1 in) falling over one day and humidity levels at 71%. In contrast, December brings warmer conditions, featuring a minimum temperature of 17°C (63°F) and reaching highs of 32°C (91°F), with an average temperature of 24°C (75°F). However, it also sees increased precipitation, totaling 29 mm (1.2 in) across seven days, coupled with higher humidity at 86%. For more detailed insights, you can check San Martin weather in December.

Compare San Martin's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in San Martin

In July, San Martin enjoys a delightful respite from the heavy rains, with minimal precipitation of just 4 mm over a single day, making it one of the driest times of the year. The temperatures are comfortably warm, averaging around 21°C (70°F), which contrasts with the hotter summer months that often reach up to 28°C (82°F). The humidity remains relatively high at 71%, but overall, July offers a pleasant climate for outdoor activities without the burdensome rain. For those planning a visit, understanding the nuances of the weather can enhance your experience—explore more about the region at San Martin Climate!