Last updated: August 21, 2025
September at Fort Wellington, Guyana offers a warm tropical climate characterized by an average temperature of 28°C (82°F), reaching a maximum of 29°C (85°F) and dipping to a comfortable minimum of 25°C (76°F). This month experiences significant rainfall, with total precipitation reaching 99 mm (3.9 in) over 19 days, creating a lush environment typical of the region. Additionally, humidity levels hover around a tropical 76%, contributing to the overall richness of the atmosphere. Visitors can expect both cozy warmth and the refreshing embrace of seasonal rain during this vibrant time of year.
September marks a notable transition in Fort Wellington, Guyana, where temperatures begin to feel a touch warmer as the month progresses toward the end of the dry season. With minimum temperatures rising slightly to 25°C (76°F) and an average of 28°C (82°F), this month welcomes some of the year's highest daytime maxima, peaking at 29°C (85°F). As the humidity remains steady, visitors can expect a warm, tropical climate perfect for outdoor adventures, making September an appealing time to explore the vibrant culture and natural beauty of the region.
In September, Fort Wellington experiences a noticeable decline in precipitation, with an average of 99 mm (3.9 in), marking it as one of the driest months of the year. This drop in rainfall coincides with 19 rainy days, slightly less than the preceding months, suggesting a shift towards drier conditions after the heavy downpours of May and June. The trend reflects a gradual easing of the wet season, paving the way for the drier months ahead. The precipitation pattern highlights a crucial transition, as the region begins to settle into a comparatively tranquil weather phase, providing a brief respite before the rainfall begins to increase again in November. Overall, September offers a harmonious balance, bridging the lush, rain-soaked summer months and the upcoming dry season.
In September, Fort Wellington, Guyana experiences a humidity level of 76%, marking a slight increase from the preceding months. This uptick follows a pattern observed during the rainy season, where humidity rises significantly, peaking during the summer months of June and July at 85%. While September's levels represent some moderation from these highs, they still reflect a consistent trend of elevated moisture in the air that persists throughout the year. The humidity remains relatively high into the fall, tapering only slightly to 75% in October. Overall, the climate showcases distinct seasonal changes, with September standing as a transitional month that bridges the peak humidity of summer and the more tempered conditions of autumn.
In September, Fort Wellington, Guyana, continues to experience an extreme UV Index of 13, necessitating caution during outdoor activities. This marks a consistent trend observed throughout the year, with only slight fluctuations in UV intensity. From January to April, the index peaks at 16 before settling at 13 in the later months, including September, October, and even December. With a burn time of just 10 minutes across all months, the urgency to protect your skin remains paramount. As you enjoy the warm weather, remember to stay informed about the UV levels; for more information, check the detailed data here: Fort Wellington UV Index.
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In September, Fort Wellington, Guyana, basks in a delightful 322 hours of sunshine, reflecting a consistent late-year trend of abundant daylight. Following a peak in August with 326 hours, September maintains the momentum as the region transitions into the heart of its dry season. This sustaining brightness underscores a pattern, where the year unfolds with increasing sunshine from January's 257 hours to October's 330 hours—the sun's warm embrace only intensifying as the months progress. Such a vibrant display invites both locals and visitors to revel in the outdoors, forging unforgettable memories under the brilliant sky.
September in Fort Wellington, Guyana, stands out as a month of increasing sunshine, boasting a 57% chance of sunny weather—the highest probability of the year. As the rainy season begins to fade, the skies open up, allowing more sun-filled days to grace the region. This noticeable rise in sunshine follows a pattern that peaks in August at 44%, creating a delightful transition into September's brightness. In contrast to the earlier months, where the likelihood of rain significantly outweighs sunny spells, September offers a refreshing optimism for outdoor activities and exploration, making it a prime time to soak in the tropical beauty of Guyana.
In September, Fort Wellington, Guyana enjoys a consistent 12 hours of daylight, maintaining the trend established since March. The length of day remains stable throughout the months from March to September, providing a beautiful balance of light that enhances outdoor activities and the vibrant life of the region. As the days start to shorten in October, the gradual decline back to 11 hours of daylight mirrors the natural rhythm observed earlier in the year. This seamless transition from ample daylight in the middle months to shorter days ensures that residents and visitors alike can savor the sun’s warmth during the extended hours while preparing for the shift towards the end of the year.
As September arrives in Fort Wellington, Guyana, the wind begins to take on a gentle character, with an average speed of 4.4 m/s (10 mph). This marks a slight increase from the languid breezes of August, where winds were at their calmest. Observing the trends throughout the year, there is a noticeable decline in wind speed from the earlier months, peaking at 6.7 m/s (15 mph) in February and gradually tapering off to the year’s lowest point in July. However, September's mild winds suggest a subtle resurgence as the region transitions toward October, which typically sees a revival to about 5.3 m/s (12 mph). This seasonal ebb and flow of wind not only reflects the changing climate but also brings a refreshing touch to the vibrant landscapes of Fort Wellington.
Weather in Fort Wellington varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Fort Wellington, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is typically warm with average temperatures around 28°C (82°F) and a maximum of 29°C (85°F). Humidity levels remain high at 76%, and the month experiences considerable rainfall, with 99 mm (3.9 in) of precipitation over 19 days. In contrast, January sees slightly cooler temperatures, with an average of 26°C (79°F) and a maximum of 27°C (81°F). However, this month is characterized by even heavier rainfall, totaling 162 mm (6.4 in) over 22 days, while humidity remains relatively stable at 74%. For more detailed information, you can check out Fort Wellington weather in January.
When comparing the weather conditions in September and February, distinct differences emerge. September typically showcases warmer temperatures, with a minimum of 25°C (76°F) and an average high of 29°C (85°F), while February is slightly cooler, ranging from a minimum of 24°C (75°F) to a maximum of 27°C (81°F). Precipitation is also more pronounced in February, with 121 mm (4.8 in) falling over 23 days, compared to September's 99 mm (3.9 in) across 19 days. Additionally, humidity levels in September are higher at 76%, while February experiences a relatively lower humidity at 71%. For a closer look at February weather, you can visit Fort Wellington weather in February.
In September, the weather is warm with a minimum temperature of 25°C (76°F) and an average high of 29°C (85°F), accompanied by significant rainfall of 99 mm (3.9 in) over 19 days, leading to a humidity level of 76%. In contrast, March presents slightly cooler temperatures, with a minimum of 24°C (75°F) and a maximum of 27°C (82°F), but experiences even heavier rainfall totaling 167 mm (6.6 in) across 22 days, and a lower humidity level of 71%. While both months are characterized by warmth and frequent precipitation, March tends to be rainier and slightly less humid compared to September. For a more detailed look at March weather, you can visit Fort Wellington weather in March.
When comparing the weather in September and April, both months exhibit warm temperatures, but September tends to be slightly warmer with average highs around 29°C (85°F) compared to April's average high of 28°C (83°F). Humidity levels are fairly similar, with September at 76% and April slightly lower at 70%. However, April sees significantly more rainfall, recording 206 mm (8.1 in) over 24 days, which is a stark contrast to September's 99 mm (3.9 in) across 19 days. For more details on the weather patterns, you can check out Fort Wellington weather in April.
Comparing the weather in September and May reveals some notable differences. In September, temperatures range from a minimum of 25°C (76°F) to a maximum of 29°C (85°F), with an average temperature of 28°C (82°F). The month experiences a rainfall of 99 mm (3.9 in) spread over 19 days, along with a relatively high humidity of 76%. In contrast, May presents slightly cooler temperatures, with a minimum of 24°C (76°F) and a maximum of 28°C (82°F), averaging 26°C (79°F). However, May is significantly wetter, with precipitation reaching 425 mm (16.7 in) across 29 days and a humidity level of 70%. For a detailed look at May weather, you can refer to Fort Wellington weather in May.
In comparing the weather of September and June, we see some notable differences. September has a warm climate with average temperatures around 28°C (82°F) and relatively lower humidity at 76%. The rainfall is also less significant, with 99 mm (3.9 in) spread over 19 days. In contrast, June tends to be wetter and slightly cooler, with an average temperature of 26°C (79°F). It experiences much heavier rainfall, totaling 447 mm (17.6 in) across 29 days, and higher humidity at 85%. For a more detailed look into June weather, you can explore Fort Wellington weather in June.
In comparing the weather between July and September, it is evident that both months experience warm temperatures, with September slightly higher on average, ranging from a minimum of 25°C (76°F) to a maximum of 29°C (85°F), compared to July's minimum of 24°C (76°F) and maximum of 29°C (84°F). Precipitation significantly differs, as July receives a hefty 314 mm (12.4 in) over 30 days, while September sees much less, with 99 mm (3.9 in) across 19 days. Additionally, humidity is higher in July at 85%, compared to September's 76%, making July feel more muggy overall. For more detailed insights, you can refer to Fort Wellington weather in July.
In comparing the weather between September and August, September experiences slightly warmer temperatures, with an average of 28°C (82°F) compared to August's 27°C (81°F). Both months have a maximum temperature of 29°C (85°F), but September has a marginally higher minimum temperature of 25°C (76°F) versus August's 24°C (76°F). However, September sees a reduction in precipitation, totaling 99 mm (3.9 in) over 19 days, while August is considerably wetter, with 150 mm (5.9 in) occurring over 23 days. Additionally, September's humidity is slightly lower at 76%, whereas August's humidity averages around 81%. For more details on the weather for this period, you can check out Fort Wellington weather in August.
In comparing the weather of September and October, both months share similar average temperatures, with minimums around 25°C (77°F), average highs of 28°C (82°F), and maximums slightly varying between 29°C (84-85°F). However, October experiences slightly more precipitation, totaling 117 mm (4.6 in) over 17 days compared to September's 99 mm (3.9 in) across 19 days. Interestingly, humidity remains quite stable, with September at 76% and October at 75%. For more detailed information, you can check Fort Wellington weather in October.
In comparison to September, November exhibits a slightly cooler average temperature, with min temperatures around 25°C (77°F) and an average of 27°C (81°F), whereas September has an average of 28°C (82°F). Both months experience maximum temperatures of 29°C (84°F to 85°F), but November sees a significant increase in precipitation, totaling 241 mm (9.5 in) over 26 days, compared to September's 99 mm (3.9 in) over 19 days. The humidity also rises marginally, with November recording 79% versus September's 76%. For more detailed information, you can check Fort Wellington weather in November.
In comparing the weather patterns of September and December, we notice that September typically enjoys slightly warmer temperatures, with an average of 28°C (82°F) compared to December’s average of 26°C (79°F). While September experiences a moderate amount of precipitation at 99 mm (3.9 in) over 19 days, December sees a significant increase, with 345 mm (13.6 in) spread over 29 days, leading to a noticeably wetter month. Humidity levels remain relatively similar, with September at 76% and December slightly higher at 77%. For more detailed weather insights in December, you can visit Fort Wellington weather in December.
September weather at Fort Wellington is characterized by higher temperatures and increased humidity, setting it apart from other months. With an average temperature hovering around a warm 28°C, the days feel particularly sweltering, especially with 76% humidity lingering in the air. Rain becomes more prevalent this month, with precipitation occurring on nearly two-thirds of the days and a total of 99 mm accumulating, making it one of the wetter months of the year. This combination of warmth and moisture creates a unique climate that affects both daily life and the natural environment. For a deeper dive into the weather patterns throughout different months, explore the comprehensive insights on Fort Wellington Climate.