December Weather in Tulcan, Ecuador

Last updated: August 21, 2025

In December, Tulcan, Ecuador, experiences a mild yet humid climate, characterized by maximum temperatures reaching 18°C (65°F) and an average of 11°C (52°F). With minimum temperatures dropping to around 4°C (40°F), the month is marked by frequent rainfall, accumulating 270 mm (10.6 in) over 29 days. The high humidity of 86% contributes to the lush greenery and vibrant flora that define this picturesque Andean city, making it an enchanting destination during the festive season.

December Temperature in Tulcan

In December, Tulcan, Ecuador experiences a slight chill with minimum temperatures averaging around 4°C (40°F). The overall climate remains relatively stable throughout the year, with December marking one of the cooler months alongside January and February. The **average temperature hovers at a comfortable 11°C (52°F), while the highs reach around 18°C (65°F), creating a pleasant atmosphere for both locals and visitors. This month typically sees a continuation of the moderate weather pattern, characterized by mild days and cooler nights, ideal for enjoying the city's vibrant scenery and cultural heritage without the extremes of heat or cold. As the year winds down, December in Tulcan offers a cozy ambiance perfect for exploration.

December Weather in Tulcan: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Tulcan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tulcan, December 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).
JanFebMarAprMayJunJulAugSepOctNovDec515252525150494950515252
Data source: Temperature data for Tulcan generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Tulcan

In December, Tulcan, Ecuador experiences significant rainfall, with an impressive 270 mm (10.6 in) recorded, continuing the trend of substantial precipitation characteristic of the region's rainy season. This month sees rain on approximately 29 days, similar to the preceding months, though slightly less than the peak of 319 mm (12.6 in) in November. The consistent precipitation in December underscores the region's lush, vibrant landscape as it transitions into the new year, while also hinting at a gradual decrease from the month's earlier highs. Overall, December's rainfall, along with an average of nearly a full month of rain, solidifies its position as a key player in Tulcan's annual climate narrative.

December Precipitation Trends in Tulcan

The chart displays monthly precipitation patterns in Tulcan, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Tulcan, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec231224275267241216176116101215320270
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Tulcan

In Tulcan, Ecuador, December ushers in a relatively mild humidity level of 86%, slightly lower than the peak of 91% observed in March. Throughout the year, humidity levels display an intriguing trend: they start high in January, peaking in February and March, before gradually diminishing to their lowest point of 78% in July. As the seasons shift toward the end of the year, humidity begins to creep back up, stabilizing around the 89% mark from September to November. December's figure reflects this gradual decline, bridging the gap before the cycle begins anew in January. Thus, Tulcan’s December humidity serves as a gentle reminder of the region's lush, tropical climate, while hinting at the consistent moisture that defines much of its yearly weather patterns.

December Average Humidity in Tulcan

This chart illustrates the average monthly humidity levels in Tulcan, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Tulcan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%91%88%87%84%78%80%88%90%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Tulcan

In December, Tulcan, Ecuador, continues to experience an extreme UV Index of 14, with a consistent burn time of just 10 minutes. This month marks a slight decline from the peak indices observed earlier in the year, particularly in February and March when values soared to 18 and 19, respectively. Despite this decrease, the UV levels remain high, reflecting a trend of intense sun exposure throughout the year in Tulcan. Residents and visitors alike should stay vigilant, as even a few minutes in the sun can result in burns. For comprehensive insights and safety measures, check out the full details at Tulcan UV Index.

Maximum UV Index Levels in Tulcan for December

The chart shows the monthly maximum UV Index (UVI) for Tulcan in December, 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 December, the maximum UV index in Tulcan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171819191715151516171514
Data source: Tulcan December 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.

December Sunshine in Tulcan

In December, Tulcan, Ecuador, enjoys a delightful 276 hours of sunshine, marking a continuation of the city’s vibrant climatic patterns as the year draws to a close. This month reflects a notable consistency in daylight, nestled between the sun-drenched heights of August and September, which boast the year's highest totals at 304 and 303 hours, respectively. As the season transitions towards the new year, December's sunlight surpasses the earlier months, such as November with its 235 hours, highlighting a trend of radiant warmth that defines Tulcan's climate. This steady embrace of sunshine not only adds to the beauty of the region but also invites both locals and travelers to bask in the splendor of the Andean landscapes.

Monthly Sunshine Duration in Tulcan: December Highlighted

The December sunshine duration represents the total number of hours Tulcan experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec221h255h266h253h256h255h269h304h303h280h235h276h
Data source: Tulcan December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tulcan During December

In Tulcan, Ecuador, the likelihood of sunny weather in December stands at a modest 8%, marking it as one of the least sunny months of the year. This trend of lower sunshine is consistent with previous months, particularly from November through April, which all show similarly low chances of sun. Interestingly, the month of September offers the most sun at 22%, showcasing a peak right before the rainy season, while summer months like January and July provide a slight respite with chances rising to 12% and 13%, respectively. Overall, December is characterized by subdued sunlight, making it a typical transitional month as the region gears up for its wetter season.

Percentage of Sunny Days in December in Tulcan

The chart illustrates the percentage of sunny days in Tulcan throughout the year, with December 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 Tulcan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%4%4%4%12%10%13%10%22%10%8%8%
Data source: Tulcan December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tulcan in December

In Tulcan, Ecuador, the rhythm of daylight remains remarkably consistent throughout the year, with twelve hours of daylight every month, including December. This steady duration showcases the region's equatorial positioning, where day and night are almost perfectly balanced regardless of the season. As the year draws to a close, residents and visitors alike can enjoy the same generous daylight that has graced Tulcan since January, making it an ideal time for outdoor activities and exploration under the warm, Ecuadorian sun. The predictable daylight pattern creates a sense of stability, inviting everyone to appreciate the beauty of their surroundings throughout the year.

Average Daylight Hours in Tulcan for December

The chart illustrates the variation in daylight duration in Tulcan throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 4m12h 4m12h 5m12h 7m12h 8m12h 9m12h 8m12h 7m12h 5m12h 4m12h 4m12h 4m
Data source: Tulcan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Tulcan

In December, the winds in Tulcan, Ecuador, whisper gently at an average speed of 1.3 m/s (3 mph), offering a sense of calm as the year draws to a close. This marks a slight dip from the lively gusts of July and August, which boast wind speeds of 2.2 m/s (5 mph) and 2.1 m/s (5 mph), respectively. Notably, the trend throughout the year showcases a gradual increase in wind speed from the typically still months of January through April, climbing to peaks in the middle of the year before tapering off again into the softer breezes of autumn. As December settles in, the consistent 3 mph winds create a serene backdrop, perfect for reflecting on the year's journey in this highland gem.

Average December Wind Speed in Tulcan

The chart displays monthly wind speed patterns in Tulcan, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.41.31.51.61.72.22.12.01.41.21.3 m/s
Data source: Tulcan December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Tulcan Compares to Other Months

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

December and January in Tulcan display fairly similar weather patterns, although there are subtle differences. In December, temperatures range from a minimum of 4°C (40°F) to a maximum of 18°C (65°F), while January sees a slight dip in the minimum to 2°C (36°F) but a comparable maximum of 19°C (66°F). Precipitation is notably high in December, totaling 270 mm (10.6 in) over 29 days, while January experiences less rainfall at 231 mm (9.1 in) across 25 days. Additionally, January brings slightly higher humidity levels at 89% compared to December's 86%. For a detailed look at the weather specifics, you can check Tulcan weather in January.

December and February exhibit similar temperature ranges, with minimums around 4°C (39-40°F) and average highs close to 11°C (52°F) in both months. However, February tends to be slightly warmer, peaking at a maximum of 19°C (67°F) compared to December's 18°C (65°F). Precipitation levels are also noteworthy; December receives a higher total of 270 mm (10.6 in) over 29 days, while February sees 224 mm (8.8 in) across 27 days. Additionally, humidity is marginally higher in February at 90%, compared to December's 86%. For more detailed insights, you can check Tulcan weather in February.

December and March exhibit similar average temperatures, with December having a minimum of 4°C (40°F) and a maximum of 18°C (65°F), while March shows slightly higher values, with a minimum of 5°C (41°F) and a maximum of 19°C (67°F). Both months experience considerable rainfall, with December receiving 270 mm (10.6 in) over 29 days and March slightly edging higher at 275 mm (10.8 in) over 30 days. Humidity levels are also elevated in both months, with December at 86% and March rising to 91%. This comparison highlights the consistently wet and mild conditions typical of this region. For more details on March weather, visit Tulcan weather in March.

December and April share similar average temperatures, with both months seeing highs of 18°C (65°F) and lows around 4-5°C (40-42°F). However, December experiences slightly more precipitation, with 270 mm (10.6 in) compared to April's 267 mm (10.5 in), despite both months having 29 rainy days. Interestingly, April tends to have a bit higher humidity at 88%, compared to December's 86%. For more detailed insights, you can visit the link: Tulcan weather in April.

In December, the weather in Tulcan is characterized by a slightly cooler temperature range, with minimums around 4°C (40°F) and maximums reaching up to 18°C (65°F). The month sees substantial precipitation, totaling 270 mm (10.6 in) over 29 days, contributing to high humidity levels of 86%. In contrast, May experiences a marginally higher minimum temperature of 5°C (42°F) while maintaining the same average and maximum temperatures. Although May has slightly less rainfall at 241 mm (9.5 in) over 30 days, humidity remains similar at 87%. For a closer look at Tulcan's conditions in May, check out Tulcan weather in May.

In December, the weather is generally mild with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 18°C (65°F), providing an average temperature of 11°C (52°F). The month also sees a significant amount of rainfall, with 270 mm (10.6 in) spread over 29 days, resulting in a high humidity level of 86%. In contrast, June boasts slightly cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 17°C (63°F), averaging 10°C (51°F). The precipitation is lower at 216 mm (8.5 in) over the same number of days, leading to a humidity of 84%. For more details on the weather in June, you can visit Tulcan weather in June.

December and July showcase distinctly different weather patterns. December experiences slightly warmer temperatures, with daily averages reaching 11°C (52°F) and maximums peaking at 18°C (65°F). In addition, December is characterized by higher humidity levels at 86% and significantly increased precipitation, totaling 270 mm (10.6 in) over 29 days. In contrast, July features lower average temperatures of 9°C (49°F), with the same maximum of 18°C (64°F) as December but a minimum of just 4°C (39°F). The month is also marked by less rainfall, receiving 176 mm (6.9 in) over 27 days, and lower humidity at 78%. For more details about weather specifics in July, you can visit Tulcan weather in July.

When comparing the weather in December and August, December tends to be milder with average temperatures ranging from 4°C (40°F) to 18°C (65°F), whereas August is slightly cooler, with temperatures ranging from 2°C (37°F) to 17°C (63°F). December also experiences significantly higher precipitation, averaging 270 mm (10.6 in) over 29 days, compared to August's 116 mm (4.6 in) over 23 days. Additionally, humidity levels are higher in December at 86%, compared to 80% in August, making the latter month feel a bit less humid and more comfortable. For more specifics on August weather, you can check Tulcan weather in August.

When comparing the weather in December and September, it becomes evident that both months share a similar range of temperatures, with maximums reaching up to 18°C (65°F). However, December tends to be slightly warmer overall, with an average temperature of 11°C (52°F) compared to September's 10°C (51°F). Precipitation levels, on the other hand, diverge significantly; December sees a hefty 270 mm (10.6 in) of rain over 29 days, while September experiences a much lighter 101 mm (4.0 in) over 20 days. Additionally, humidity is slightly lower in September at 88% compared to December's 86%. For more specific information about the weather patterns during September, you can visit Tulcan weather in September.

December and October showcase similar temperature ranges, with both months experiencing a minimum temperature of around 4°C (39-40°F) and an average of about 11°C (51-52°F). However, October typically enjoys slightly warmer maximum temperatures, reaching up to 20°C (67°F), compared to December's peak of 18°C (65°F). Precipitation levels are notably higher in December, with 270 mm (10.6 in) of rain over 29 days, compared to October's 215 mm (8.5 in) over 28 days. Humidity remains high in both months, peaking at 90% in October and slightly lower at 86% in December. For more details on October weather, you can check Tulcan weather in October.

In comparing the weather between November and December, both months exhibit similar average temperatures, with December seeing a slight decrease in the minimum temperature (4°C) compared to November (5°C). However, the maximum temperature in December tends to be a degree lower at 18°C, while November reaches up to 19°C. Precipitation levels are quite significant in both months, with December receiving 270 mm over 29 days and November experiencing slightly higher rainfall at 319 mm, also over 29 days. Humidity remains consistently high, with December at 86% and November slightly higher at 89%. For more details, you can check out the Tulcan weather in November.

Compare Tulcan's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Tulcan

As December rolls into Tulcan, the weather takes on a distinctly cooler and wetter character compared to the rest of the year. Temperatures hover around a brisk 11°C (52°F) on average, with a notable increase in precipitation, totaling 270 mm (10.6 in) across 29 rainy days, making it one of the wettest months. The high humidity at 86% adds to the chill, inviting visitors to prepare for both rain and cool temperatures. This shift from the drier months creates an enchanting atmosphere, as the lush landscapes thrive under the nourishing rainfall. To explore more about Tulcan's weather patterns throughout the year, visit Tulcan Climate.