Last updated: August 21, 2025
May in Riobamba, Ecuador presents a cool and damp climate, with maximum temperatures reaching up to 18°C (65°F) and sinking to minimums of 0°C (33°F). The average temperature hovers around a comfortable 9°C (49°F), making it ideal for light layers. Visitors can expect significant precipitation, totaling 138 mm (5.4 in) over the month, distributed across 24 rainy days, contributing to a lush landscape. High humidity levels of 92% further enhance the feel of the season, creating a refreshing and vibrant atmosphere in this charming Andean city.
In May, temperatures in Riobamba, Ecuador, remain consistently cool, with a minimum of 0°C (33°F) and an average of 9°C (49°F), mirroring the patterns set in previous months. With a maximum temperature stabilizing at a pleasant 18°C (65°F), the city continues to experience a mild climate, despite the slight drop in the average as winter approaches. This month marks one of the cooler periods, particularly with nighttime temperatures hovering around freezing. As May transitions into the chillier months ahead, outdoor enthusiasts might want to bundle up while enjoying the region's stunning scenery, making it an ideal time for cozy exploration.
May in Riobamba, Ecuador experiences a moderate precipitation level of 138 mm (5.4 in), marking a slight decrease from the wetter months of March and April. Rainfall occurs over approximately 24 days, indicating that while the rain is frequent, the per-day volume is lower compared to earlier in the year. This trend suggests a gradual transition towards the drier months ahead. The shift from heavy showers in March, with a significant 231 mm (9.1 in) of rain, to the lighter precipitation in May reflects a pattern of diminishing rainfall as the region approaches the dryer period, characterized by a steady decline in precipitation into June and July.
In May, Riobamba, Ecuador experiences a noticeable rise in humidity, peaking at an impressive 92%. This spike marks a transition into the wet season, following a pattern previously established in March and April with both months sitting at a humidity level of 86%. As the year progresses from the driest months of July and August, where humidity drops to 72% and 60% respectively, the moisture in the air during May serves as a reminder of the region's lush, vibrant climate. The consistent high humidity throughout the early months underscores Riobamba's unique weather patterns, benefiting both local flora and the overall atmosphere.
In May, the UV Index in Riobamba, Ecuador remains strikingly high at 17, categorizing it as extreme and indicating a burn time of just 10 minutes. This trend of consistently high UV levels extends from January through May, with indices ranging from 17 to 19 during these months. After May, the UV Index begins to slightly decline, dipping to 14 in June and July. Nevertheless, residents and visitors should remain vigilant, as exposure categories remain extreme throughout the year, and proper sun protection is essential. For more details on the UV Index's annual fluctuations in Riobamba, check out Riobamba UV Index.
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May brings a delightful surge of sunshine to Riobamba, Ecuador, with an impressive 246 hours of sunlight, signaling the start of an exuberant season. This month marks a noticeable increase compared to the earlier months like March and April, which hovered around 197 and 201 hours, respectively. Following May, the sun continues to shine even brighter in June and July, peaking at an astounding 319 hours in July. The trend reveals that as the year progresses, Riobamba basks in more sunlight, particularly during the mid-year months, creating a vibrant atmosphere perfect for outdoor activities. With an average of over 250 hours of sunshine from June through October, it's clear that the sun's embrace is a defining feature of life in Riobamba during these months.
In Riobamba, Ecuador, the likelihood of sunny weather experiences a notable upswing in May, with a 21% chance of sunshine, marking it as a significant improvement compared to the preceding months of January through April, which hover around a mere 6% to 13%. This trend continues into the following months, as sunny days become more frequent with June at 19% and July peaking at 26%. Thus, while May is certainly a step towards brighter skies, it also sets the stage for the sunniest months ahead, inviting outdoor activities and exploration in the stunning Andean landscape.
In Riobamba, Ecuador, residents enjoy a unique consistency in daylight throughout the year, with each month offering a balanced 12 hours of daylight. This remarkable uniformity not only highlights the region's equatorial positioning but also allows for a predictable rhythm of life. Whether it's the vibrant blossoms of spring in April or the serene winter mornings in June, the enduring 12-hour daylight span creates a harmonious backdrop for both daily activities and seasonal celebrations. As the months glide gracefully from one to another, locals and visitors alike can soak up the sun's warmth and embrace the beauty of each moment, undisturbed by the fluctuations that often characterize other locations.
In May, Riobamba, Ecuador, experiences a gentle uptick in average wind speed, reaching about 1.7 m/s (4 mph), just slightly above the consistent breezes of the preceding months. This increase signals the arrival of the transitional period leading into winter, where winds gradually become more pronounced. Following May, June sees a modest rise to 1.8 m/s (4 mph), and by July, the winds strengthen significantly to 2.5 m/s (6 mph). This trend suggests that as the year progresses, Riobamba's winds become a more invigorating feature of its charming climate, adding a refreshing element to the atmosphere and enhancing the vibrant natural beauty of the region.
Weather in Riobamba varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Riobamba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In May, the weather in Riobamba features temperatures ranging from a minimum of 0°C (33°F) to a maximum of 18°C (65°F), with an average temperature of 9°C (49°F). It is characterized by significant precipitation, totaling 138 mm (5.4 in) over the course of 24 days, resulting in a high humidity level of 92%. In contrast, January offers a slightly warmer start with temperatures that also reach up to 18°C (65°F) but maintain a minimum of 1°C (34°F) and an average of 9°C (48°F). The month sees a similar level of rainfall, at 141 mm (5.5 in), but spread across 21 days, contributing to a lower humidity of 82%. For more details, visit Riobamba weather in January.
In comparing the weather between May and February, both months feature the same average and maximum temperatures of 9°C (49°F) and 18°C (65°F), respectively. However, May experiences slightly milder conditions, with a minimum temperature of 0°C (33°F), while February dips a bit lower with a minimum of -1°C (30°F). February also sees higher precipitation levels, with 172 mm (6.8 in) of rainfall compared to May's 138 mm (5.4 in), and a slightly higher number of rainy days. Humidity levels are also notably different, with May at 92% and February at 79%. For more specific insights into February's climate, you can check Riobamba weather in February.
In comparing the weather of May and March, both months exhibit similar average temperatures, with May having a minimum of 0°C (33°F) and March a minimum of 2°C (35°F), while both share a maximum of 18°C (65°F). However, March experiences significantly higher precipitation, totaling 231 mm (9.1 in) over 28 days, compared to May's 138 mm (5.4 in) across 24 days. Additionally, May has a slightly higher humidity level at 92%, while March sits at 86%. For more detailed insights into March's weather patterns, you can visit Riobamba weather in March.
In comparing the weather between April and May, we find that both months exhibit similar average temperatures, with May showing a slightly cooler minimum temperature of 0°C (33°F) compared to April's 1°C (34°F). While both months peak at a maximum of 18°C (65°F), May has slightly less overall precipitation, totaling 138 mm (5.4 in) over 24 days, compared to April's 182 mm (7.2 in) across 27 days. Interestingly, May also experiences higher humidity levels at 92%, compared to April’s 86%, indicating a potentially more damp atmosphere. For more detailed insights into April's weather, you can check Riobamba weather in April.
In comparing the weather of May and June, May tends to be slightly warmer overall, with average temperatures reaching 9°C (49°F) compared to June's 8°C (47°F). Both months experience minimal temperatures around freezing, but May sees a higher maximum temperature of 18°C (65°F), while June peaks at 17°C (63°F). Precipitation is more abundant in May, totaling 138 mm (5.4 in) over 24 days, whereas June receives 100 mm (3.9 in) across 20 days. Humidity remains quite high in both months, with May at 92% and June slightly lower at 90%. For those interested in more detailed information, visit Riobamba weather in June.
In May, the weather in Riobamba is characterized by cooler temperatures, with an average of 9°C (49°F) and a minimum that can drop to 0°C (33°F). The month experiences significant precipitation, totaling 138 mm (5.4 in) over approximately 24 days, contributing to a high humidity level of 92%. In contrast, July offers slightly milder weather with minimum temperatures around -1°C (31°F) and an average of 8°C (46°F). Notably, July sees less rainfall, with only 67 mm (2.6 in) spread over 16 days and a reduced humidity level of 72%. For more details, check out Riobamba weather in July.
May and August present distinct contrasts in weather patterns. May experiences a wider range of temperatures, with averages around 9°C (49°F) and a maximum of 18°C (65°F), while August's average is slightly cooler at 8°C (47°F) with a maximum of 19°C (66°F). Notably, May is considerably wetter, receiving 138 mm (5.4 in) of precipitation over 24 days, compared to August, which sees only 40 mm (1.6 in) over just 10 days. Additionally, the humidity in May is quite high at 92%, while August enjoys a more comfortable level at 60%. For more detailed information, you can visit Riobamba weather in August.
May and September exhibit contrasting weather patterns. In May, the temperatures range from a chilly 0°C (33°F) at night to a milder 18°C (65°F) during the day, accompanied by significant precipitation of 138 mm (5.4 in) spread over 24 days, resulting in high humidity levels at 92%. In contrast, September features slightly cooler temperatures, with minimums dipping to -1°C (31°F) and maximums reaching 20°C (68°F). Additionally, September experiences much lighter rainfall, totaling only 46 mm (1.8 in) across 12 days, resulting in a more comfortable humidity level of 63%. For more detailed insights, you can check Riobamba weather in September.
May and October exhibit some notable differences in weather patterns. While both months share similar average temperatures of around 9°C (49°F), October tends to be slightly warmer with a maximum temperature reaching up to 21°C (70°F), compared to May's 18°C (65°F). May experiences higher precipitation levels with 138 mm (5.4 in) over 24 days, making it one of the wetter months, while October sees a decrease in rainfall to 116 mm (4.6 in) across 22 days. Additionally, October's humidity is lower at 76%, compared to May's high humidity of 92%. For those interested in specific weather conditions, you can find more information here: Riobamba weather in October.
May and November share similar temperature ranges, with both months featuring minimums around 0°C (33°F) and averages close to 9°C (48-49°F). However, November tends to be slightly warmer at its maximum, reaching 19°C (67°F) compared to May's 18°C (65°F). When it comes to precipitation, November is generally wetter, receiving 170 mm (6.7 in) over 26 days, while May has 138 mm (5.4 in) across 24 days. Humidity levels in November are also a bit lower at 85% compared to May's high of 92%. For more detailed insights into November weather, visit Riobamba weather in November.
When comparing the weather of May and December, one can observe several similarities and differences. Both months have an average temperature of 9°C (49°F), but December slightly edges out May in maximum temperature, averaging 19°C (66°F) compared to May's 18°C (65°F). Interestingly, December experiences slightly higher minimum temperatures, averaging 2°C (37°F) while May can dip to 0°C (33°F).
Precipitation levels are also notable; December sees around 154 mm (6.1 in) over 27 days, whereas May has 138 mm (5.4 in) over 24 days. This means that December is often wetter, but with slightly lower humidity levels at 86% compared to May's 92%. For a more detailed overview, you can check Riobamba weather in December.
As May unfolds in Riobamba, the city experiences a notable shift in weather compared to other months. The temperatures remain cool, with a refreshing chill that underscores the transition into the wet season. Frequent rainfall significantly increases humidity levels, creating a lush and vibrant environment. With nearly every day touched by precipitation, May's wetness provides a stark contrast to the drier months, making it an ideal time for nature enthusiasts to explore the surrounding landscapes. For a comprehensive overview of how these patterns influence life in Riobamba throughout the year, visit Riobamba Climate.