Last updated: August 21, 2025
December in Riobamba, Ecuador, brings a blend of cool temperatures and significant rainfall. With maximum temperatures reaching up to 19°C (66°F) and dipping to a chilly 2°C (37°F) at night, the month presents a mild, yet brisk environment. The average temperature hovers around 9°C (49°F), making warm clothing essential for outdoor activities. Rain is a constant companion, with 154 mm (6.1 in) falling over the course of 27 days, contributing to the region's lush greenery. The high humidity level of 86% enhances the feeling of dampness, wrapping the city in a misty embrace. Embrace the enchanting atmosphere of Riobamba this December, where every corner reveals the beauty of a rainy Andean landscape.
In December, Riobamba, Ecuador, experiences a subtle shift in temperatures as it transitions into the glide of the new year. The minimum temperature rises slightly to 2°C (37°F), while daytime highs reach a pleasant 19°C (66°F). This maintains an overall average of 9°C (49°F), consistent with previous months. As the city bids farewell to the colder grip of late fall, the weather becomes increasingly mild, making December a delightful time to explore the rich cultural landscape of this Andean jewel. Visitors can enjoy the refreshing temperatures, which rarely stray far from the comfortable averages that characterize the region throughout the year.
In December, Riobamba, Ecuador experiences a transitional precipitation pattern, with 154 mm (6.1 inches) of rainfall spread across 27 days. This marks a slight decrease from November's 170 mm, yet it remains significant, reflecting the region's tendency for wet conditions as the year winds down. The consistent number of precipitation days indicates that rain is a frequent visitor, keeping the landscape lush and vibrant. As the Andes’ influence prevails, the month serves as a reminder that while the rains may lessen compared to peak months like March—which receives the most rainfall at 231 mm (9.1 in)—December still encapsulates the essence of Riobamba's climate, weaving together elements of warmth and moisture that characterize this highland city.
In December, Riobamba experiences a notable humidity level of 86%, which aligns with the elevated humidity seen throughout the year, particularly from March to June when figures peak at 86% and 92%. The transition from the drier months of July (72%) and August (60%) marks a return to higher humidity as the year draws to a close, reflecting a slight resurgence as the rainy season approaches. Overall, December's humidity complements the year's trend of increased moisture, contributing to the lush landscapes typical of this region in Ecuador.
In December, Riobamba, Ecuador experiences a UV Index of 15, maintaining its classification as extreme. This month marks a slight decline from the peak levels observed earlier in the year, where the UV Index reached as high as 19 in both March and April. Notably, throughout the year, the exposure category has consistently remained at extreme levels, resulting in a burn time of just 10 minutes for unprotected skin. As a city located high in the Andes, Riobamba's UV indices highlight the importance of sun protection year-round. For more details on UV levels in the region, visit Riobamba UV Index.
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In Riobamba, Ecuador, the month of December shines brightly with an impressive 241 hours of sunshine, contributing to the region’s warm and inviting atmosphere. As the year progresses, the sunny days peak during the mid-year months, with July and August boasting the highest totals at 319 and 326 hours, respectively. Interestingly, the spring months of May and June also offer generous sunshine, with 246 and 275 hours. This upward trend from late spring onward solidifies Riobamba as a destination for sun seekers, even as the year transitions into winter. In contrast, the late autumn months, particularly November with 201 hours, herald a subtle dip in sunshine hours, yet December still offers ample bright days, making it a delightful time to visit before the year closes.
In Riobamba, Ecuador, the likelihood of sunny weather in December is relatively low, with only an 8% chance of sunshine. This pattern is consistent with the preceding months, as November also presents a similar probability of clear skies. When we look at the trends throughout the year, a noticeable upswing in sunshine occurs during the mid-year months, particularly from July to September, where the chance of sunny weather peaks at 26%. In stark contrast, the early months of the year feature notably lower percentages, culminating in December, where sunshine remains scarce. Thus, December is not the optimal month for those seeking sunshine in this charming Ecuadorian city.
In Riobamba, Ecuador, the daylight duration offers a remarkable consistency throughout the year, with an unwavering 12 hours of daylight every month, including December. This predictable pattern creates a unique equilibrium, allowing residents and visitors alike to enjoy a balanced rhythm of day and night. As the year comes to a close, December maintains this steady glow, fostering opportunities for outdoor activities and cultural celebrations that thrive under the equatorial sun. Whether it’s exploring the stunning landscapes or indulging in local festivities, the consistent daylight in Riobamba makes every day an inviting experience.
As December arrives in Riobamba, Ecuador, the average wind speed settles at a modest 1.3 m/s (3 mph), reflecting a gentle caress from the Andean breezes. This slight dip follows a gradual climb through the year, peaking in July with 2.5 m/s (6 mph), which marks the windiest month. Interestingly, the transition from November to December reveals a subtle decrease, hinting at the calm before the new year unfolds. Generally, the wind speeds show a seasonal rhythm, where cooler months often correlate with lighter breezes, inviting residents and visitors alike to enjoy the serene landscapes enveloped by soft, refreshing winds.
Weather in Riobamba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Riobamba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Riobamba range from a minimum of 2°C (37°F) to a maximum of 19°C (66°F), with an average of 9°C (49°F). The month sees significant precipitation, totaling 154 mm (6.1 in) over 27 days, accompanied by high humidity levels of 86%. In contrast, January experiences slightly cooler temperatures with a minimum of 1°C (34°F) and a maximum of 18°C (65°F), maintaining an average of 9°C (48°F). Precipitation decreases to 141 mm (5.5 in) scattered over 21 days, and humidity drops to 82%. For more specific information about January's weather, you can visit Riobamba weather in January.
December and February offer a mix of mild temperatures and significant precipitation, though their conditions exhibit some notable differences. In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 19°C (66°F), accompanied by an average of 9°C (49°F). The month experiences considerable rainfall, with 154 mm (6.1 in) over 27 days and high humidity at 86%. Conversely, February sees slightly cooler mornings with a minimum of -1°C (30°F) but maintains a similar average temperature of 9°C (49°F) and a maximum of 18°C (65°F). Precipitation increases to 172 mm (6.8 in) across 24 days, while humidity drops to 79%. For more detailed insights on February weather in Riobamba, you can visit Riobamba weather in February.
In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 19°C (66°F), with an average of 9°C (49°F). The month experiences considerable rainfall, totaling 154 mm (6.1 in) over 27 days, while humidity remains consistently high at 86%. In contrast, March has a similar temperature range, with minimums at 2°C (35°F) and maximums of 18°C (65°F), averaging about 9°C (48°F). However, precipitation increases significantly to 231 mm (9.1 in) over 28 days, also maintaining the same high humidity level of 86%. This makes March wetter than December, despite their temperatures being quite alike. For a detailed insight into the weather patterns, check out Riobamba weather in March.
December and April present similar average temperatures, hovering around 9°C (49°F), yet the maximums in December peak slightly higher at 19°C (66°F) compared to April’s 18°C (65°F). While both months experience precipitation over 150 mm and rainfall on about 27 days, April is notably wetter with 182 mm (7.2 in) of rainfall compared to December's 154 mm (6.1 in). Humidity remains constant at a high 86% in both months, creating a damp atmosphere typical of these transitional seasons. For more details on the weather patterns in April, check out Riobamba weather in April.
In December, the weather in Riobamba shows a wider temperature range, with minimums around 2°C (37°F) and maximums reaching up to 19°C (66°F). This month typically sees more precipitation, with about 154 mm (6.1 in) over 27 days, resulting in high humidity levels at 86%. In contrast, May experiences slightly cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 18°C (65°F). Although May has a lower total precipitation of 138 mm (5.4 in) spread across 24 days, the humidity is marginally higher at 92%. For more detailed insights, you can check Riobamba weather in May.
In December, the weather features a wider temperature range, with average highs reaching 19°C (66°F) and lows around 2°C (37°F), while June has slightly cooler temperatures with averages peaking at 17°C (63°F) and dropping to around 0°C (32°F). December also sees more precipitation, averaging 154 mm (6.1 in) over 27 days, compared to June’s 100 mm (3.9 in) across 20 days. Humidity levels are quite similar, with December at 86% and June slightly higher at 90%. This difference in weather patterns can significantly affect outdoor activities, making December feel wetter and milder, while June is cooler and drier. For a more detailed look, check Riobamba weather in June.
When comparing December and July weather, we notice distinct differences in both temperature and precipitation patterns. In December, temperatures range from a minimum of 2°C (37°F) to a maximum of 19°C (66°F), with an average of 9°C (49°F). This month experiences more rainfall, totaling 154 mm (6.1 in) over 27 days, accompanied by high humidity at 86%. In contrast, July sees cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 18°C (65°F), averaging around 8°C (46°F). Precipitation in July is significantly lower at 67 mm (2.6 in) over 16 days, and humidity drops to 72%. For more detailed insights, check out Riobamba weather in July.
In December, the weather is generally milder with average temperatures ranging from 2°C (37°F) to a maximum of 19°C (66°F), accompanied by a high level of humidity at 86%. This month also sees considerable precipitation, totaling around 154 mm (6.1 in) over 27 days, making it quite damp and overcast. In contrast, August offers cooler temperatures with a minimum of 0°C (31°F) and the same maximum of 19°C (66°F), but the average temperature is slightly lower at 8°C (47°F). August is significantly drier, with only about 40 mm (1.6 in) of rain falling over just 10 days, and the humidity drops to 60%. For more detailed insights into August's weather, you can visit Riobamba weather in August.
In December, the weather is generally milder compared to September, with average temperatures ranging from a minimum of 2°C (37°F) to a maximum of 19°C (66°F). The month experiences significant precipitation, totaling 154 mm (6.1 in) over 27 days, and the humidity remains high at 86%. In contrast, September presents cooler conditions with a lower temperature range of -1°C (31°F) to a maximum of 20°C (68°F), alongside much less rainfall at 46 mm (1.8 in) over just 12 days and a more comfortable humidity level of 63%. For more detailed information, you can check Riobamba weather in September.
When comparing the weather in December to that of October, December generally experiences slightly milder temperatures, with average highs reaching 19°C (66°F) compared to October's peak of 21°C (70°F). However, October tends to start off colder, with minimum temperatures dropping to 0°C (33°F), while December's lows sit at a more moderate 2°C (37°F). Precipitation is more pronounced in December, accumulating to 154 mm (6.1 in) over 27 days, compared to 116 mm (4.6 in) across 22 days in October. Additionally, December's humidity is higher at 86%, contrasting with October's 76%. For more detailed information about October's weather, you can check Riobamba weather in October.
In comparing the weather conditions between December and November, December exhibits slightly milder minimum temperatures, with a low of 2°C (37°F) compared to November's 0°C (33°F). Both months have similar average temperatures at around 9°C (49°F), and maximum temperatures reach a comparable high of 19°C (66°F) in December and 19°C (67°F) in November. Precipitation levels are slightly lower in December at 154 mm (6.1 in) over 27 days, whereas November sees a higher total of 170 mm (6.7 in) across 26 days. Humidity levels are quite similar as well, with December at 86% and November at 85%. For specific details about November's weather, you can visit Riobamba weather in November.
December in Riobamba presents a unique climatic experience, with temperatures averaging around a brisk 9°C and notable highs reaching 19°C. This month stands out due to its significantly increased precipitation, often resulting in cloudy and humid conditions with an average humidity of 86%. With about 27 days of rain, December can feel more like a transitional phase compared to the drier and warmer months. For those curious about the broader patterns influencing this charming city, explore more at Riobamba Climate.