December Weather in Fort Wellington, Guyana

Last updated: August 21, 2025

December in Fort Wellington, Guyana, is characterized by warm temperatures and high humidity, creating a tropical atmosphere. With maximum temperatures reaching 28°C (83°F) and an average of 26°C (79°F), the month offers a mild climate. However, rainfall is significant, with a total precipitation of 345 mm (13.6 in) spread over 29 days, contributing to a humid environment at around 77% humidity. This combination of warmth and consistent rainfall sets the stage for a lush landscape, typical of this vibrant region during December.

December Temperature in Fort Wellington

In December, Fort Wellington, Guyana, experiences a continuation of its tropical warmth, with temperatures typically ranging from a comfortable 24°C (75°F) at night to a pleasant 28°C (83°F) during the day. The average temperature settles around 26°C (79°F), mirroring the patterns of the preceding months, where a consistent warmth is established. Notably, December's daytime highs are just a notch below the peak temperatures seen in the mid-year months, suggesting that while the year winds down, the climate remains inviting and tropical. This steady warmth, coupled with the lush surroundings, makes December an appealing time to experience the vibrancy of Guyana’s landscape.

December Weather in Fort Wellington: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Fort Wellington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Wellington, 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).
JanFebMarAprMayJunJulAugSepOctNovDec797979797979798182828179
Data source: Temperature data for Fort Wellington 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 Fort Wellington

December in Fort Wellington, Guyana, marks a significant uptick in precipitation, with 345 mm (13.6 in) of rainfall spread over 29 days. This positions December as one of the wetter months of the year, following a trend of escalating rainfall from the drier early months. The rainfall peaks in May and June, illustrating the region's characteristic wet season, while December serves as a transition, wrapping up the year with substantial moisture. As the landscape prepares for the upcoming dry season, the consistent frequency of rainy days underscores the tropical climate's rhythm, bringing lushness and vitality to Fort Wellington's surroundings.

December Precipitation Trends in Fort Wellington

The chart displays monthly precipitation patterns in Fort Wellington, 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 Fort Wellington, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec16212116720642544731415099117241345
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Fort Wellington

In Fort Wellington, Guyana, December brings a humidity level of 77%, maintaining a relatively moist climate that is characteristic of the region. As the year progresses, humidity levels show a distinct trend; starting from a comfortable 74% in January, the figures gradually decrease to a low of 70% from April through May, before soaring to an impressive 85% during the peak of the rainy season in June and July. The months following show a gradual decline, with August at 81% and a slight drop to 79% in November. By December, humidity levels stabilize at 77%, offering a balance that reflects the transition into the dry season while still preserving the lush tropical atmosphere. Overall, the humidity trends highlight Fort Wellington's humid tropical climate, with distinct seasonal fluctuations that are both a charm and a challenge for its residents.

December Average Humidity in Fort Wellington

This chart illustrates the average monthly humidity levels in Fort Wellington, 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 Fort Wellington is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%71%70%70%85%85%81%76%76%79%77%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Fort Wellington

In December, the UV Index in Fort Wellington, Guyana remains at a notable 12, categorizing it in the extreme exposure range with a burn time of just 10 minutes. This consistent trend is mirrored throughout the year, where the UV Index rarely dips below 12, peaking in April at 16. The data highlights the persistent intensity of UV radiation in Fort Wellington, emphasizing the importance of sun protection year-round. As December approaches, residents and visitors alike should remain vigilant against sunburn, ensuring they are adequately shielded from harmful rays. For more details on UV Index trends throughout the year, visit Fort Wellington UV Index.

Maximum UV Index Levels in Fort Wellington for December

The chart shows the monthly maximum UV Index (UVI) for Fort Wellington 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 Fort Wellington typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131415161413121313131212
Data source: Fort Wellington 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 Fort Wellington

In Fort Wellington, Guyana, December brings a delightful 302 hours of sunshine, wrapping up the year with a warm glow. This month stands as a vibrant prelude to the peak brightness seen in October, which boasts a stellar 330 hours. Notably, sunshine hours surged in early spring with March reaching an impressive 328 hours, showcasing the area’s trend towards more sun as the year progresses. Following the mid-year dips in June and November, December’s sunny disposition signals the region's characteristic resilience, making it an ideal time for outdoor pursuits before ushering in the New Year. Overall, the gradual rise from the overcast days of June to December's bright finale illustrates Fort Wellington's tropical charm, ensuring every sunset is a celebration.

Monthly Sunshine Duration in Fort Wellington: December Highlighted

The December sunshine duration represents the total number of hours Fort Wellington 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.
JanFebMarAprMayJunJulAugSepOctNovDec257h288h328h307h290h266h308h326h322h330h287h302h
Data source: Fort Wellington December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Fort Wellington During December

In Fort Wellington, Guyana, December ushers in a significantly lower likelihood of sunny weather, with only 19% chance of sunshine, marking one of the year's least bright months. This dip contrasts starkly with the sunnier months of August and September, where the probability of clear skies peaks at 44% and 57%, respectively. Throughout the year, a gradual decline in sunlight can be observed, particularly dropping from a modest 30% in November to December's gloomy forecast. As the rainy season approaches, the trend suggests that outdoor plans in December may require a backup plan—cloudy skies often take precedence over sunlit afternoons.

Percentage of Sunny Days in December in Fort Wellington

The chart illustrates the percentage of sunny days in Fort Wellington 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 Fort Wellington experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%38%30%20%22%29%30%44%57%36%30%19%
Data source: Fort Wellington December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Fort Wellington in December

In Fort Wellington, Guyana, the pattern of daylight duration illustrates a remarkable consistency influenced by its tropical climate. The year begins with 11 hours of daylight in January and February, gradually increasing to a peak of 12 hours from March through September. This extended period of light allows for vibrant outdoor activities during the dry season. As the year wanes, daylight begins to retract again, falling back to 11 hours in October and holding steady through November and December. This rhythmic change not only marks the passage of seasons but also evokes a sense of balance that residents vividly experience throughout the year.

Average Daylight Hours in Fort Wellington for December

The chart illustrates the variation in daylight duration in Fort Wellington throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 47m11h 54m12h 4m12h 15m12h 24m12h 28m12h 26m12h 18m12h 7m11h 57m11h 48m11h 44m
Data source: Fort Wellington daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Fort Wellington

December in Fort Wellington, Guyana, sees a gentle breeze with an average wind speed of 5.2 m/s (12 mph), marking a slight uptick compared to the calmer months of July and August, when winds dipped to their seasonal lows of 3.9 m/s (9 mph) and 3.4 m/s (8 mph), respectively. As the year winds down, the shift towards a more moderate wind pattern becomes evident after the summer months; the average speeds gradually rise from a low of 4.7 m/s (11 mph) in June to December's refreshing gusts. This trend highlights the transition into a breezier end of the year, providing a pleasant atmospheric backdrop for the festivities that accompany the holiday season in this vibrant coastal area.

Average December Wind Speed in Fort Wellington

The chart displays monthly wind speed patterns in Fort Wellington, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.96.76.05.65.34.73.93.44.45.34.85.2 m/s
Data source: Fort Wellington December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Fort Wellington Compares to Other Months

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

In December, the weather is characterized by warm temperatures with a minimum of 24°C (75°F) and an average of 26°C (79°F), peaking at a maximum of 28°C (83°F). However, this month experiences significant rainfall, accumulating 345 mm (13.6 in) over 29 days and maintaining a humidity level of 77%.

In contrast, January sees very similar temperature patterns, with a minimum of 24°C (76°F), an average of 26°C (79°F), and a slight decrease in the maximum to 27°C (81°F). Precipitation also drops significantly to 162 mm (6.4 in) across 22 days, and the humidity slightly decreases to 74%. For a detailed overview of January weather, you can visit Fort Wellington weather in January.

December and February both exhibit warm temperatures, with minimums around 24°C (75°F) and average highs close to 26°C (79°F). However, February experiences slightly cooler maximum temperatures, peaking at 27°C (81°F), compared to December's high of 28°C (83°F). Precipitation levels markedly differ, as December sees a significant 345 mm (13.6 in) over 29 days, while February receives only 121 mm (4.8 in) across 23 days. This results in higher humidity in December at 77%, compared to February's more comfortable 71%. For further details, you can check Fort Wellington weather in February.

December and March both experience warm temperatures, with minimums around 24°C (75°F) and average highs of 26-28°C (79-83°F). However, December is notably wetter, receiving 345 mm (13.6 in) of rainfall across 29 days, compared to March's 167 mm (6.6 in) over 22 days. Additionally, humidity levels are higher in December at 77%, while March sees a more comfortable 71%. For more details on the weather conditions during March, you can check the link: Fort Wellington weather in March.

December and April in Fort Wellington exhibit fairly similar temperatures, with both months showing a minimum of 24°C (75°F), an average of 26°C (79°F), and a maximum of 28°C (83°F). However, December is significantly wetter, receiving 345 mm (13.6 in) of precipitation over 29 days, compared to April's 206 mm (8.1 in) over 24 days. This results in higher humidity levels in December at 77%, while April enjoys a slightly lower humidity of 70%. For more detailed weather information, you can visit Fort Wellington weather in April.

December and May present similar temperature profiles, with both months averaging around 26°C (79°F) and experiencing minimum temperatures near 24°C (75°F). However, May tends to be slightly wetter, with total precipitation reaching 425 mm (16.7 in) compared to December's 345 mm (13.6 in), despite both months seeing rainfall on approximately 29 days. Additionally, May's humidity is lower at 70%, compared to December's higher humidity level of 77%. For a more detailed look at May's weather patterns, check out Fort Wellington weather in May.

In December, the weather is generally warm, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), and an average of 26°C (79°F). However, this month experiences significant rainfall, with 345 mm (13.6 in) of precipitation spread over 29 days and a humidity level of 77%. In contrast, June mirrors December's temperature profile, maintaining the same range and average. Nonetheless, it sees even heavier rainfall, accumulating 447 mm (17.6 in), with the same number of rainy days but a higher humidity of 85%. For a detailed look at the weather conditions during this month, you can visit Fort Wellington weather in June.

In December, the weather remains warm with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 28°C (83°F), and an average of 26°C (79°F). However, this month is characterized by high humidity at 77% and significant rainfall, receiving approximately 345 mm (13.6 in) over 29 days. Conversely, July offers similar warm temperatures with a minimum of 24°C (76°F) and a slightly higher maximum of 29°C (84°F), averaging 26°C (80°F). July sees slightly less precipitation at 314 mm (12.4 in) but over 30 days, coupled with even higher humidity levels at 85%. For a more detailed look at the weather in July, you can visit Fort Wellington weather in July.

December and August share relatively similar temperature ranges, with December showing a slight increase in average temperatures compared to August. In December, temperatures hover between a minimum of 24°C (75°F) and a maximum of 28°C (83°F), while August has temperatures ranging from 24°C (76°F) to 29°C (84°F). However, December experiences significantly higher precipitation at 345 mm (13.6 in) over 29 days, compared to August's 150 mm (5.9 in) over 23 days. Additionally, humidity levels are slightly lower in December at 77% compared to August's 81%. For more detailed information, you can check Fort Wellington weather in August.

When comparing the weather between December and September, it’s clear that both months maintain consistently warm temperatures, though December is slightly cooler. December sees minimum temperatures of 24°C (75°F) and a maximum of 28°C (83°F), while September offers a slightly warmer range with minimums of 25°C (76°F) and maximums up to 29°C (85°F). Rainfall also varies significantly, with December experiencing much higher precipitation at 345 mm (13.6 in) over 29 days, compared to September’s 99 mm (3.9 in) over 19 days. Humidity levels are similar, remaining around 76-77%. For more detailed climate insights, check Fort Wellington weather in September.

In comparing the weather of December and October, we notice a slight decrease in temperatures during the latter month. December experiences minimum temperatures around 24°C (75°F), averaging 26°C (79°F), while October's temperatures range from a minimum of 25°C (77°F) to an average of 28°C (82°F) and a maximum of 29°C (84°F). Additionally, December brings significantly more precipitation, with 345 mm (13.6 in) falling over 29 days, in stark contrast to October's 117 mm (4.6 in) over just 17 days. Humidity levels also show a slight difference, at 77% in December compared to 75% in October. For more detailed insights, you can check Fort Wellington weather in October.

In comparing the weather between November and December, December experiences slightly cooler temperatures, with an average of 26°C (79°F) compared to November's 27°C (81°F). However, December sees a significant increase in precipitation, totaling 345 mm (13.6 in) over 29 days, while November has 241 mm (9.5 in) over 26 days. Humidity remains relatively high in both months, with December at 77% and November at 79%. This indicates a wetter and slightly cooler end to the year, which contrasts with the warmer and somewhat drier conditions of November. For a more detailed look at November's weather, you can check Fort Wellington weather in November.

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Conclusion: What to Expect From December Weather in Fort Wellington

As December unfolds in Fort Wellington, it offers a distinct blend of warmth and significant rainfall, making it quite different from other months. With temperatures averaging a comfortable 26°C, the holiday season is characterized by high humidity levels and nearly continuous precipitation, with rain occurring on 29 days throughout the month. This creates a lush and vibrant landscape but also means that residents and visitors should be prepared for wet conditions. Overall, December showcases the unique tropical climate of Fort Wellington, blending warmth and moisture seamlessly. For more detailed insights into the weather patterns throughout the year, be sure to check out Fort Wellington Climate.