September Weather in Georgetown, Guyana

Last updated: August 21, 2025

September in Georgetown, Guyana, showcases a warm tropical climate characterized by maximum temperatures reaching 32°C (90°F) and an average of 28°C (82°F). The month experiences a minimum temperature of 24°C (76°F), providing a consistently warm environment. Rainfall is a significant feature, with precipitation totaling 126 mm (4.9 in) over approximately 23 days, leading to a humidity level of 76% that enhances the lush, vibrant landscapes of the region. Embrace the balmy weather and the beauty of tropical rain as Georgetown transitions into the heart of its wet season.

September Temperature in Georgetown

As September rolls into Georgetown, Guyana, temperatures begin to warm up noticeably, with minimums averaging around 24°C (76°F) and maximums reaching a steamy 32°C (90°F). This month showcases an exciting shift towards the peak of the warm season, as the average temperature climbs to 28°C (82°F), a slight bump from previous months. The trend of higher temperatures continues from August, reflecting Georgetown's tropical climate, where the warmth often pairs with humidity, creating a vibrant yet sultry atmosphere. As the city embraces the beauty of early fall, residents and visitors can expect balmy days that invite both outdoor exploration and leisurely relaxation.

September Weather in Georgetown: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Georgetown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Georgetown, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec787879807979798182828079
Data source: Temperature data for Georgetown 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.

September Precipitation in Georgetown

In September, Georgetown, Guyana, experiences a moderate precipitation level with 126 mm (4.9 in) of rainfall over 23 days. This marks a decrease from the previous months, particularly notable after the heavy downpours of June and July, which see totals of 398 mm (15.7 in) and 284 mm (11.2 in) respectively. However, September still fall under the transitional phase leading to the wetter months ahead, as rainfall begins to taper from the high figures of May and June. The overall trend suggests that while the month maintains a consistent number of rainy days, the amount of rain begins to decline slightly, creating a unique balance between lingering humidity and comfort in the region.

September Precipitation Trends in Georgetown

The chart displays monthly precipitation patterns in Georgetown, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Georgetown, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec146101134154309398284177126135234287
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Georgetown

In Georgetown, Guyana, humidity levels fluctuate significantly throughout the year, showcasing a clear trend as tropical conditions set in. September, with a humidity of 76%, falls into a transitional period following the peak months of June and July where the humidity soars to a steamy 85%. The month offers a slight reprieve from the oppressive moisture of mid-year, yet it's still markedly higher than the drier months at the beginning of the year, such as January and February with their more moderate levels of 74% and 71% respectively. While September's humidity is lower than the summer months, it still embodies the essence of Georgetown's tropical climate, setting the stage for the transition into the more humid and rainy months that follow. Overall, the consistent humidity levels remind residents and visitors alike of the lush environment that defines this vibrant region.

September Average Humidity in Georgetown

This chart illustrates the average monthly humidity levels in Georgetown, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Georgetown 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Georgetown

In September, Georgetown, Guyana experiences a UV Index of 13, marking it as an extreme exposure month, with a burn time of just 10 minutes. This is consistent with the trend seen throughout the year, where high UV levels dominate, particularly from January to April when the index peaks at 15. Even as August transitions into September, the UV Index remains robust, reflecting the region's tropical climate. As we move into the later months, the UV Index slightly decreases, but it still warrants caution. Anyone venturing outdoors should be prepared with sun protection strategies. For detailed insights on UV exposure throughout the year, check out Georgetown UV Index.

Maximum UV Index Levels in Georgetown for September

The chart shows the monthly maximum UV Index (UVI) for Georgetown in September, 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 September, the maximum UV index in Georgetown typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131415151413121313131212
Data source: Georgetown September 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.

September Sunshine in Georgetown

September in Georgetown, Guyana, shines brightly with 320 hours of sunshine, marking a slight dip from August’s impressive 329 hours. This month continues the trend of vibrant light that characterizes the region, particularly following the sun-soaked months of March and July, where the hours consistently peak at over 300 hours. Notably, as the year progresses, residents and visitors alike can bask in warm days, with daylight hours remaining plentiful. Despite the variation in sunlight across the months, September’s glow ensures the spirit of adventure and exploration remains alive, making it an enticing time for outdoor activities.

Monthly Sunshine Duration in Georgetown: September Highlighted

The September sunshine duration represents the total number of hours Georgetown experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec258h294h331h312h296h256h312h329h320h317h286h295h
Data source: Georgetown September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Georgetown During September

September stands out in Georgetown, Guyana, as a month with a notable increase in sunny weather, boasting a 53% chance of sunshine. This improvement from the summer months—where sunny days hover around the 23% to 37% range—signals a shift in the climate, welcoming the onset of drier conditions. As the year progresses from the wetter months of April and May, September's brightness marks a peak moment for outdoor activities and exploration, making it a favored time for both locals and visitors seeking to bask in the sun. With such a favorable outlook, September invites everyone to enjoy Georgetown's vibrant scenery under clearer skies.

Percentage of Sunny Days in September in Georgetown

The chart illustrates the percentage of sunny days in Georgetown throughout the year, with September 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 Georgetown experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%37%28%18%21%26%23%37%53%32%28%17%
Data source: Georgetown September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Georgetown in September

In September, Georgetown, Guyana enjoys a consistent 12 hours of daylight, mirroring the summer months of June through August. This steady duration provides ample opportunity for both residents and visitors to explore the vibrant culture and lush landscapes that define the region. Following September, the days begin to shorten gradually, with October ushering in a return to 11 hours of daylight as the year transitions toward its end. This rhythm of daylight not only accentuates the beauty of Georgetown but also highlights a natural ebb and flow, characteristic of its equatorial climate.

Average Daylight Hours in Georgetown for September

The chart illustrates the variation in daylight duration in Georgetown throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 45m11h 53m12h 4m12h 15m12h 25m12h 29m12h 27m12h 18m12h 8m11h 57m11h 47m11h 43m
Data source: Georgetown daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Georgetown

As September graces Georgetown, Guyana, the average wind speed picks up slightly to 2.9 m/s (7 mph), offering a gentle refreshment after the calmer summer months. This slight increase marks a notable transition from the sluggish breezes of August, where the winds dipped to their lowest at 2.3 m/s (5 mph). Following a steady decline through the mid-year, September's winds hint at the approaching change of seasons, setting the stage for more invigorating gusts in the subsequent months, like October’s expected rise to 3.4 m/s (8 mph). Overall, the winds in September embody a delicate balance, hinting at nature's rhythm in this vibrant coastal city.

Average September Wind Speed in Georgetown

The chart displays monthly wind speed patterns in Georgetown, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.04.74.23.83.73.22.62.32.9 m/s3.43.23.5
Data source: Georgetown September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Georgetown Compares to Other Months

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

September and January present a slight contrast in weather, with September generally being warmer. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 32°C (90°F), averaging around 28°C (82°F). The month brings considerable rainfall, with 126 mm (4.9 in) of precipitation over 23 days and a humidity level of 76%. In comparison, January sees slightly cooler temperatures, with a minimum of 23°C (73°F), an average of 26°C (78°F), and a maximum of 29°C (85°F). Although it is a few degrees cooler, January experiences higher precipitation with 146 mm (5.8 in) over 22 days, accompanied by a slightly lower humidity of 74%. For more details on the weather during this month, you can visit Georgetown weather in January.

When comparing the weather in September and February, September tends to be slightly warmer, with average temperatures reaching up to 28°C (82°F) compared to February's average of 26°C (78°F). September also experiences higher maximum temperatures, peaking at 32°C (90°F) versus February's maximum of 29°C (85°F). Additionally, September has more precipitation, totaling 126 mm (4.9 in) over 23 days, while February has 101 mm (4.0 in) across 22 days. Despite these differences, February's humidity is slightly lower at 71% compared to September's 76%. For more detailed information, check out Georgetown weather in February.

In September, the weather features a warm climate with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 32°C (90°F) and an average of 28°C (82°F). The month is characterized by high humidity, peaking at 76%, and experiences significant rainfall, with 126 mm (4.9 in) spread over 23 days. In contrast, March offers slightly cooler temperatures, with a minimum of 23°C (74°F), an average of 26°C (79°F), and a maximum of 30°C (85°F). While both months see approximately 23 days of precipitation, March is slightly wetter with 134 mm (5.3 in) of rain, and lower humidity at 71%. For further details, you can visit Georgetown weather in March.

In comparing the weather patterns of September and April, both months exhibit warm temperatures, with September slightly warmer on average, boasting a minimum of 24°C (76°F) and an average of 28°C (82°F), while April features a minimum of 23°C (74°F) and an average of 26°C (80°F). September also experiences a higher maximum temperature of 32°C (90°F), compared to April's max of 30°C (86°F). However, April tends to be wetter, recording 154 mm (6.1 in) of precipitation over 22 days, while September has 126 mm (4.9 in) over 23 days. Additionally, the humidity levels are marginally lower in April at 70% compared to September’s 76%. For more detailed insights on April weather, visit Georgetown weather in April.

In comparing the weather of September and May, both months exhibit warm temperatures, with September enjoying slightly higher averages, where temperatures range from a minimum of 24°C (76°F) to a maximum of 32°C (90°F), and an average of 28°C (82°F). In contrast, May has a milder average temperature, ranging from 24°C (75°F) to a maximum of 30°C (87°F), with an average of 26°C (80°F). Precipitation is more pronounced in May, with a total of 309 mm (12.2 in) spread over 29 days, compared to September's 126 mm (4.9 in) over 23 days. Additionally, while September experiences a higher humidity of 76%, May is slightly less humid at 70%. Overall, May tends to be wetter and more humid, while September is warmer and drier. For more details, you can check Georgetown weather in May.

When comparing the weather in September and June, one can observe some distinct differences. September features a warmer temperature range, with a minimum of 24°C (76°F) and an average of 28°C (82°F), peaking at 32°C (90°F). In contrast, June has slightly cooler temperatures, with a minimum of 23°C (75°F) and an average of 26°C (79°F), reaching a maximum of 30°C (86°F).

However, June is notably wetter than September, receiving an impressive 398 mm (15.7 in) of precipitation over 29 days compared to September’s 126 mm (4.9 in) over 23 days. This contributes to higher humidity levels in June, at 85%, compared to September's 76%. For more specifics on how these weather conditions can impact daily life, you can check Georgetown weather in June.

When comparing the weather in September and July, we notice some distinct differences despite similar temperature ranges. In September, the minimum temperature is slightly higher at 24°C (76°F), with an average of 28°C (82°F) and a maximum reaching 32°C (90°F). However, it experiences less precipitation, totaling 126 mm (4.9 in) over 23 days, compared to July's significant rainfall of 284 mm (11.2 in) over 31 days. Additionally, humidity levels in September average 76%, which is lower than the 85% experienced in July. For a detailed look at the weather conditions, you can check Georgetown weather in July.

In comparison to August, September experiences slightly higher average temperatures, with minimums around 24°C (76°F) and maximums reaching up to 32°C (90°F) compared to August's 24°C (75°F) minimum and 31°C (89°F) maximum. However, September also sees a decrease in average precipitation, dropping to 126 mm (4.9 in) over 23 days, while August recorded 177 mm (7.0 in) over 27 days. Humidity levels are marginally lower in September at 76%, compared to 81% in August. For more detailed insights, check out Georgetown weather in August.

In September, the weather features a minimum temperature of 24°C (76°F) and an average high of 32°C (90°F), with a total precipitation of 126 mm (4.9 in) spread over 23 days and an average humidity of 76%. In comparison, October maintains similar temperatures, with a minimum of 24°C (76°F) and an average maximum of 32°C (89°F), but experiences slightly higher precipitation at 135 mm (5.3 in) also over 23 days. Interestingly, humidity in October drops slightly to 75%, making it a marginally drier month. For more details on the weather during this time, you can check out Georgetown weather in October.

In September, the weather features higher average temperatures with daily highs reaching up to 32°C (90°F) and a humidity level of 76%. However, this month experiences considerable rainfall, accumulating 126 mm (4.9 in) over 23 days. In contrast, November has slightly cooler average temperatures, with highs of 31°C (88°F) and a minimum temperature that remains steady at 24°C (76°F). The rainfall significantly increases in November to 234 mm (9.2 in), falling on 27 days and resulting in a higher humidity level of 79%. For more details, check out Georgetown weather in November.

In comparing the weather of September and December, we find that both months have relatively warm temperatures, with September averaging 28°C (82°F) and December slightly cooler at 26°C (79°F). The maximum temperatures in September peak at 32°C (90°F), while December reaches a maximum of 30°C (86°F). However, December experiences significantly higher precipitation, with 287 mm (11.3 in) over 29 days compared to September's 126 mm (4.9 in) over 23 days. This increase in rainfall makes December a wetter month, closely accompanied by a similar level of humidity, which remains consistently high at around 77%. For more detailed information, you can check Georgetown weather in December.

Compare Georgetown's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Georgetown

As September unfolds in Georgetown, the weather offers a unique blend of warmth and humidity, distinguishing it from other months. With temperatures peaking at 32°C, the heat is tempered by an average that keeps it comfortable at 28°C. However, this month is marked by significant rainfall, with precipitation occurring on 23 days and totaling 126 mm. This high level of humidity at 76% can make outdoor activities feel more intense, leading to a notably tropical atmosphere. September's blend of warmth and frequent rain enhances the vibrant character of Georgetown, creating a lush landscape and an enticing tropical ambiance. To learn more about the weather patterns in this captivating city, visit Georgetown Climate.