Last updated: August 27, 2025
In April, San Martin, Peru experiences a warm and humid climate, with temperatures reaching up to a maximum of 35°C (95°F) and averaging around 25°C (78°F). Nights can be cooler, with temperatures dipping to a minimum of 18°C (65°F). This month sees 33 mm (1.3 in) of rainfall over approximately 5 days, contributing to the region's characteristic 86% humidity. Visitors can expect a vibrant tropical ambiance, perfect for outdoor activities amidst occasional rain showers.
In April, temperatures in San Martin, Peru, exhibit a delightful transitional trend as the region moves from the warmth of summer into cooler autumn. With a minimum temperature of 18°C (65°F) and an average of 25°C (78°F), the month offers a comfortable climate for outdoor adventures. Daytime highs reach a maximum of 35°C (95°F), maintaining the summer heat while gradually softening as the days progress. This month stands out with a balanced warmth that invites exploration, making it an ideal time to experience the vibrant landscapes and cultural richness of San Martin. As the nights cool slightly, April provides a perfect backdrop for stargazing under the clear Andean skies.
April in San Martin, Peru, brings a moderate precipitation total of 33 mm (1.3 in), a notable drop from the 157 mm (6.2 in) recorded in March. This decrease marks a transition into the drier months, as April experiences only 5 rainy days compared to March's consistent downpours. Following the trend, May further reduces precipitation to 13 mm (0.5 in), hinting at the region's shift towards a drier climate as it approaches winter. Such fluctuations showcase the ebb and flow of rain that shapes the local ecosystem, with April acting as a bridge between the wet season and the drier months that follow.
In April, San Martin, Peru, experiences a slight decline in humidity, with levels averaging 86%. This marks a gradual decrease from the higher humidity of 89% recorded in January and May, creating a mild transition as the region shifts towards drier months. Following a consistent trend seen from January to April, humidity remains relatively stable, hovering around the mid to upper 80s before dipping more significantly in July and August, where it reaches a low of 71%. This seasonal fluctuation highlights the region's tropical climate, contributing to its lush landscapes and vibrant ecosystems throughout the year.
In April, the UV Index in San Martin, Peru maintains a staggering 15, categorizing it as extreme exposure. This consistent level of intensity, seen throughout the earlier months of the year, highlights the region's high UV radiation, making a 10-minute burn time a critical consideration for outdoor activities. Following the trend from January to March, where the Index rose from 14 to 16, April's figures suggest that while there's a slight dip, the potential for sun damage remains significant. As the year progresses into the milder UV months, early spring serves as a timely reminder for residents and visitors to stay vigilant about sun protection. For more insights on UV levels and safety in the area, visit San Martin UV Index.
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April brings a radiant glow to San Martin, Peru, as the sun graces the region with an impressive 318 hours of sunshine. This marks a delightful increase from the already bright days of March, which recorded 308 hours. The upward trend continues as April serves as a precursor to even sunnier months ahead, culminating in May's generous 329 hours. With each passing month, residents and visitors alike can bask in the allure of warmer days, making San Martin an ideal destination for outdoor activities and exploration as the sunshine steadily climbs towards the peak of the year.
In April, the likelihood of sunny weather in San Martin, Peru, sees a refreshing upswing, reaching 37%, compared to the cooler months preceding it. This marks a notable increase from March's 25%, indicating a shift towards brighter days as the region transitions into the heart of the dry season. With May boasting an even more promising 62% chance of sun, April acts as a perfect precursor, inviting residents and visitors alike to enjoy the gradual warming while reveling in the promise of more sun-soaked days ahead. Overall, this trend not only hints at improving weather but also at the vibrant experiences awaiting those who embrace the beauty of San Martin in springtime.
In April, San Martin, Peru experiences a slight reduction in daylight, averaging 11 hours as the region transitions towards the cooler months. This marks a shift from the consistent 12 hours of daylight seen from January through March, indicating the onset of autumn in the Southern Hemisphere. As days continue to shorten in the following months of May, June, July, and August, they stabilize at 11 hours. Interestingly, daylight starts to increase again in September, returning to 12 hours as the region moves towards summer, illustrating a rhythmic pattern in daylight duration that reflects the equatorial climate's seasonal variations.
In April, San Martin, Peru, experiences a refreshing shift in its breezy atmosphere, with average wind speeds reaching 3.3 m/s (7 mph). This mirrors the slightly increased winds of February, creating a lively backdrop as the region transitions from the calmer conditions of March. As spring unfolds, you can sense a gradual upward trend in wind intensity that foreshadows the brisker conditions ahead in May and June, where speeds rise to 3.5 m/s (8 mph). This gentle increase in wind not only invigorates the landscape but also enhances the region’s charm, making April a delightful time to experience the natural beauty of San Martin.
Weather in San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of April and January, both months feature warm temperatures, with average highs reaching around 35°C (95°F). However, April typically experiences slightly lower average temperatures, with a minimum of 18°C (65°F) compared to January's minimum of 19°C (67°F). Precipitation is more prevalent in April, with 33 mm (1.3 in) falling over approximately 5 days, while January sees only 20 mm (0.8 in) across about 4 days. Additionally, January has a marginally higher humidity level at 89%, compared to April's 86%. For more details on January weather, you can visit San Martin weather in January.
April and February exhibit similar high temperatures, both reaching a maximum of around 35°C (95°F) and 35°C (96°F), respectively. However, April tends to be slightly warmer on average with temperatures ranging from a minimum of 18°C (65°F) to an average of 25°C (78°F), compared to February's minimum of 20°C (68°F) and average of 27°C (80°F). February experiences more precipitation, with 65 mm (2.5 in) over 9 days, while April sees only 33 mm (1.3 in) over 5 days. Humidity is also comparable, with April at 86% and February slightly higher at 87%. For more details, you can check out San Martin weather in February.
In comparing the weather between March and April, we see a notable shift in temperatures and precipitation. March experiences slightly higher minimum and average temperatures, with a minimum of 21°C (69°F) and an average of 27°C (80°F), while April's temperatures range from a minimum of 18°C (65°F) to an average of 25°C (78°F). Interestingly, even though March has a higher maximum temperature of 36°C (96°F) compared to April's 35°C (95°F), it also sees significantly more rainfall, with 157 mm (6.2 in) over 9 days, compared to April's much milder 33 mm (1.3 in) over 5 days. Humidity remains relatively consistent, hovering around 86% in April and slightly higher at 87% in March. For a closer look at March's weather, check out San Martin weather in March.
April and May weather display some notable differences. In April, temperatures range from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F). The month experiences a total precipitation of 33 mm (1.3 in) over five days, with humidity around 86%. In contrast, May sees slightly cooler temperatures, with a minimum of 16°C (62°F) and a maximum of 33°C (91°F), averaging at 24°C (75°F). Precipitation significantly decreases to 13 mm (0.5 in) over just four days, while humidity rises to 89%. For a more detailed look at weather patterns in May, you can check San Martin weather in May.
In comparing the weather of April and June, April tends to be warmer with average temperatures reaching 25°C (78°F) and maximums of up to 35°C (95°F). It also experiences higher humidity at 86% and greater precipitation of 33 mm (1.3 in) spread over five days. In contrast, June features a milder climate with an average temperature of 22°C (72°F) and a maximum of 31°C (88°F). Additionally, June is much drier, with only 6 mm (0.2 in) of rainfall over just two days and slightly lower humidity at 84%. For a more detailed look at June's weather, you can check San Martin weather in June.
April and July present contrasting weather patterns, showcasing distinct seasonal characteristics. In April, temperatures range from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F). The month experiences relatively high humidity at 86% and receives about 33 mm (1.3 in) of precipitation over approximately 5 days. In contrast, July offers cooler conditions, with temperatures ranging from 15°C (60°F) to 28°C (82°F) and an average of 21°C (70°F). This month is much drier, receiving only 4 mm (0.1 in) of precipitation over just 1 day, and features lower humidity at 71%. For more details, check the full forecast at San Martin weather in July.
April and August present notably different weather patterns. In April, temperatures range from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), averaging around 25°C (78°F). The month experiences about 33 mm (1.3 in) of precipitation over 5 days, and the humidity is quite high at 86%. In contrast, August is cooler, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F) and an average of 20°C (69°F). Rainfall is nearly non-existent, with only 2 mm (0.1 in) noted across the month and no rainy days, resulting in lower humidity levels at 71%. For more detailed insights into August weather, check out San Martin weather in August.
In April, the weather is generally warmer with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), averaging around 25°C (78°F). This month also experiences higher humidity at 86% and moderate precipitation, with around 33 mm (1.3 in) spread over 5 days. Conversely, September offers a cooler climate, with temperatures ranging from 16°C (60°F) to a maximum of 29°C (85°F), averaging only 21°C (69°F). Notably, September has significantly less precipitation, about 3 mm (0.1 in), and remains dry with no rainy days, along with a decrease in humidity to 75%. For more detailed information on September weather, visit San Martin weather in September.
April and October showcase distinct weather patterns, reflecting the transition of seasons. In April, temperatures tend to be warmer, with minimums around 18°C (65°F) and maximums reaching up to 35°C (95°F), while humidity remains high at 86%. This month usually sees around 33 mm (1.3 in) of precipitation spread over five days, contributing to a more humid feel. In contrast, October brings cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 30°C (86°F). It also has significantly less rainfall, only about 10 mm (0.4 in) over two days, and lower humidity levels at 77%. For more detailed insights, you can explore San Martin weather in October.
April and November present distinct weather patterns. In April, temperatures range from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), with an average of 25°C (78°F). The month sees more humidity at 86% and experiences about 33 mm (1.3 in) of precipitation over 5 days. In contrast, November offers milder temperatures with a minimum of 14°C (58°F) and a maximum of 31°C (88°F), averaging at 22°C (71°F). Precipitation is lower at 14 mm (0.6 in) over just 3 days, accompanied by a more comfortable humidity level of 79%. For those interested in detailed weather insights, you can explore more at San Martin weather in November.
April and December share a similar humid climate, with April experiencing slightly warmer temperatures. In April, temperatures range from a minimum of 18°C (65°F) to a maximum of 35°C (95°F), averaging around 25°C (78°F). In contrast, December sees temperatures ranging from 17°C (63°F) to a maximum of 32°C (91°F), with an average of 24°C (75°F). Both months receive comparable precipitation, with April at 33 mm (1.3 in) over 5 days and December slightly lower at 29 mm (1.2 in) over 7 days. For more detailed insights on December weather in San Martin, check out San Martin weather in December.
As April unfolds in San Martin, the weather presents a delightful contrast to the preceding months. With warm temperatures averaging 25°C and maximums soaring to 35°C, residents and visitors can expect pleasant, sunny days perfect for outdoor activities. However, this month also sees a slight increase in precipitation, averaging 33 mm over about five days, contributing to a refreshingly humid atmosphere with 86% humidity. This combination of warmth and occasional rain makes April a unique and vibrant month, bridging the gap between the hotter summer days and the cooler months ahead. For a deeper understanding of the region's climate patterns, explore San Martin Climate.