October Weather in Kourou, French Guiana

Last updated: August 21, 2025

In Kourou, French Guiana, October experiences a warm and humid tropical climate, with maximum temperatures reaching up to 31°C (88°F) and an average temperature of around 27°C (81°F). The month is marked by erratic rainfall, accumulating to 69 mm (2.7 in) over 18 days, contributing to the region's lush environment. With an average humidity level of 63%, visitors can expect a mix of sun and occasional showers, making October an ideal time for those seeking the vibrant natural beauty of this unique locale.

October Temperature in Kourou

In October, temperatures in Kourou, French Guiana continue the trend of warm, tropical weather typical for the region. The month features a minimum temperature averaging around 24°C (76°F), while the average high reaches a balmy 31°C (88°F). This slight increase in warmth from the preceding months signals a consistently humid and vibrant atmosphere. With nightly lows remaining comfortably mild at 24°C (76°F), the overall average temperature of 27°C (81°F) makes October an enticing time for visitors seeking to enjoy the lush landscapes and lively cultural scene of this coastal gem. The temperatures in October seamlessly reflect the tropical climate, offering a perfect backdrop for exploration and relaxation alike.

October Weather in Kourou: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Kourou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kourou, October 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).
JanFebMarAprMayJunJulAugSepOctNovDec797979797979798181818079
Data source: Temperature data for Kourou 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.

October Precipitation in Kourou

In October, Kourou, French Guiana experiences a notable decline in precipitation, with only 69 mm (2.7 in) of rain over approximately 18 days. This marks a significant reduction compared to the preceding months, particularly May and June, which are characterized by peak rainfall, recording 541 mm (21.3 in) and 448 mm (17.6 in) respectively. While the rain starts to taper off this month, the transition from the heavy downpours of earlier months signifies the onset of the drier season. With September being the tail end of the wetter months, October offers a brief respite, showcasing the region's unique climate cycle that can shift dramatically as the year progresses.

October Precipitation Trends in Kourou

The chart displays monthly precipitation patterns in Kourou, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Kourou, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec2021721913755414482591159269212322
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Kourou

In October, the humidity in Kourou, French Guiana settles at a moderate 63%, slightly above the low point of 62% reached in September. This marks the beginning of a gradual climb as the year progresses toward its end, indicating a transition into the wetter season. Notably, the air feels drier early in the year, with humidity levels peaking dramatically in June at 86%. As the months progress from the dry season in the first half of the year, the humidity retains a rising trend overall, culminating in more moisture-rich months ahead. This pattern reflects the tropical climate's characteristic fluctuations, making October a pivotal moment in Kourou’s annual humidity cycle.

October Average Humidity in Kourou

This chart illustrates the average monthly humidity levels in Kourou, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Kourou is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%66%66%68%86%76%65%62%63%74%79%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Kourou

In October, Kourou, French Guiana maintains its position within the extreme UV Index category, showcasing a UV Index of 13. This consistency reflects a trend observed throughout the year, where the UV Index often peaks in the mid to high teens, particularly in March and April. Despite a slight dip in July to 12, the region's UV exposure remains a constant challenge, demanding vigilant sun protection measures. The 10-minute burn time underscores the urgent need for sunscreen and proper attire, ensuring safety under the tropical sun. For those planning to enjoy outdoor activities, keeping aware of the Kourou UV Index is essential—stay protected! For further information, visit Kourou UV Index.

Maximum UV Index Levels in Kourou for October

The chart shows the monthly maximum UV Index (UVI) for Kourou in October, 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 October, the maximum UV index in Kourou typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416161413121313131312
Data source: Kourou October 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.

October Sunshine in Kourou

As October unfolds in Kourou, French Guiana, residents and visitors alike can relish a stunning 339 hours of sunshine—a figure that places this month among the sunniest of the year. This delightful trend follows a summer peak, with July and August showcasing even more radiant days, hitting 315 and 340 hours respectively. However, what makes October particularly enchanting is its seamless blend of ample sunlight and the lush vibrancy of the surrounding landscape as the wet season approaches. Following slightly lower sunshine hours in November at 289, October offers a perfect opportunity to soak in the sun while enjoying the transition of the seasons. The gradual ebb and flow of sunlight throughout the year highlight Kourou's tropical allure, making it an ideal escape for sun-seekers and nature lovers alike.

Monthly Sunshine Duration in Kourou: October Highlighted

The October sunshine duration represents the total number of hours Kourou experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec235h243h301h258h232h259h315h340h334h339h289h268h
Data source: Kourou October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kourou During October

In Kourou, French Guiana, October presents a 30% chance of sunny weather, making it a notable month for outdoor activities. While this figure shows a decline from the sunniest period of the year in August and September, which boast chances of 36% and 42% respectively, October still maintains a relatively favorable outlook compared to much of the year. As the rainy season begins to encroach, the likelihood of sunshine decreases markedly in the following months, with November plummeting to just 17%. This trend suggests that October is a prime time for travelers seeking a balance between sunny days and warm weather before the clouds roll in.

Percentage of Sunny Days in October in Kourou

The chart illustrates the percentage of sunny days in Kourou throughout the year, with October 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 Kourou experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%18%20%11%10%22%23%37%42%30%17%8%
Data source: Kourou October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kourou in October

In Kourou, French Guiana, daylight duration exhibits a fascinating rhythm throughout the year. The early months, from January to March, provide consistent daylight of 11 hours, gradually shifting to 12 hours from March through September, as the days lengthen and the sun hangs higher in the sky. This period of prolonged daylight peaks at 12 hours for six consecutive months, creating a perfect balance for outdoor activities and exploration. As October arrives, the duration dips back to 11 hours, signaling the return of shorter days. This gradual ebb and flow repeats itself with 11 hours of daylight in November and December, showcasing the unique tropical climate of Kourou, where sunlight and shadow weave together naturally throughout the year.

Average Daylight Hours in Kourou for October

The chart illustrates the variation in daylight duration in Kourou throughout the year, with October highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 50m11h 56m12h 4m12h 13m12h 20m12h 23m12h 22m12h 15m12h 7m11h 59m11h 52m11h 49m
Data source: Kourou daylight hours, calculated by summing the hours between sunrise and sunset for each day.

October Winds in Kourou

As October rolls around in Kourou, French Guiana, the wind begins to pick up slightly, boasting an average speed of 3.6 m/s (8 mph). While this is a modest increase from the previous months, it marks a notable transition from the calmness of the peak rainy season. This month showcases a gentle resurgence in wind activity, hinting at the gradual return to more dynamic weather patterns as the year winds down. Notably, October's breeze is on par with November's, suggesting a period of stability just before the winds start to pick up again in December. Overall, the October wind in Kourou offers a refreshing respite amidst the tropical warmth, perfectly setting the stage for the upcoming festive season.

Average October Wind Speed in Kourou

The chart displays monthly wind speed patterns in Kourou, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.05.94.94.34.13.02.73.13.03.6 m/s3.64.2
Data source: Kourou October wind data, generated using information from the Copernicus Climate Change Service.

How October Weather in Kourou Compares to Other Months

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

When comparing the weather in October and January, we observe slight temperature variations and significant differences in precipitation. In October, the temperatures range from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), with an average of 27°C (81°F) and humidity at 63%. The month sees about 69 mm (2.7 inches) of rainfall over 18 days. In contrast, January experiences cooler temperatures with a minimum of 23°C (74°F) and a maximum of 29°C (85°F), averaging at 26°C (79°F). However, it is notably wetter, receiving 202 mm (8.0 inches) of rain over 23 days, coupled with higher humidity at 70%. For more details on January's climate, you can check Kourou weather in January.

When comparing the weather in October and February, we see some notable differences. October typically enjoys warmer temperatures, with a minimum of 24°C (76°F) and an average high of 31°C (88°F), while February's temperatures are slightly cooler, ranging from a minimum of 23°C (75°F) to a maximum of 29°C (84°F). However, February experiences significantly more precipitation, totaling 172 mm (6.8 in) over 23 days, compared to October's 69 mm (2.7 in) across 18 days. Humidity levels are also quite similar, with October at 63% and February slightly higher at 66%. For more details on February weather, check out Kourou weather in February.

Comparing the weather in October and March reveals some interesting similarities and differences. Both months share a warm minimum temperature of around 24°C (75°F), though October enjoys a slightly higher average of 27°C (81°F) compared to March’s 26°C (79°F). In terms of maximum temperatures, October exceeds March, reaching up to 31°C (88°F) versus March's peak of 29°C (85°F). However, March experiences significantly higher precipitation, totaling 191 mm (7.5 in) across 25 days, compared to October's 69 mm (2.7 in) over 18 days. Humidity levels are quite similar, with October at 63% and March slightly higher at 66%. For a more detailed look at specific conditions, check out Kourou weather in March.

When comparing the weather in October and April, we see some notable differences. October enjoys slightly warmer temperatures, with averages around 27°C (81°F) and maximums reaching 31°C (88°F), while April's temperatures are a bit cooler, averaging 26°C (79°F) and peaking at 29°C (85°F). However, April is significantly wetter, receiving an average of 375 mm (14.8 in) of rain over 28 days, compared to October's 69 mm (2.7 in) over just 18 days. The humidity levels are quite similar, with October at 63% and April slightly higher at 66%. For more insights into April's weather, check out Kourou weather in April.

In comparing the weather between October and May, both months experience similar minimum temperatures around 24°C (75-76°F) and average highs, with October slightly warmer at an average of 27°C (81°F) compared to May’s 26°C (79°F). However, October is characterized by significantly lower precipitation, with 69 mm (2.7 in) over 18 days, while May sees a much wetter climate with 541 mm (21.3 in) falling over 30 days. Humidity levels are relatively close, with October at 63% and May at 68%. For more detailed information, you can visit Kourou weather in May.

In comparing the weather between October and June, we see that October has warmer temperatures, with a minimum of 24°C (76°F) and an average of 27°C (81°F), peaking at 31°C (88°F). In contrast, June shows slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 26°C (79°F), reaching a maximum of 30°C (87°F). However, June is significantly wetter, experiencing 448 mm (17.6 in) of precipitation over 30 days, compared to October's more manageable 69 mm (2.7 in) over 18 days. Additionally, June has higher humidity levels, averaging 86%, compared to October's 63%. For a closer look at the weather specifics for June, you can refer to Kourou weather in June.

When comparing the weather in October and July, we find some notable differences. October presents a slightly warmer climate with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), while July's temperatures are marginally cooler, averaging between 23°C (73°F) and 31°C (88°F). Precipitation levels are also significantly different; October receives about 69 mm (2.7 in) of rainfall over 18 days, whereas July sees much heavier rainfall at 259 mm (10.2 in) over 29 days. Additionally, humidity is lower in October at 63%, compared to July’s higher humidity level of 76%. For more detailed information about July weather in Kourou, visit Kourou weather in July.

When comparing the weather in October and August, we see that both months have similar average temperatures, with October having slightly warmer minimum temperatures at 24°C (76°F) compared to August's 23°C (74°F). However, October experiences less precipitation, with 69 mm (2.7 in) over 18 days, while August sees significantly higher rainfall at 114 mm (4.5 in) across 21 days. Additionally, humidity levels are slightly higher in August at 65%, compared to October's 63%. For more detailed information about August weather, you can visit Kourou weather in August.

In comparing the weather conditions between September and October, both months feature similar temperature ranges, with minimums at 24°C (75°F), average temperatures at 27°C (81°F), and maximums peaking at 31°C (88°F). However, October experiences slightly less precipitation, totaling 69 mm (2.7 in) over 18 days, compared to September's 92 mm (3.6 in) over 16 days. The humidity levels remain similar, with October at 63% and September at 62%. For a more detailed look at September's weather, you can visit Kourou weather in September.

In October, Kourou experiences warm temperatures with a minimum of 24°C (76°F), an average of 27°C (81°F), and a maximum of 31°C (88°F). The month sees moderate rainfall, with a total precipitation of 69 mm (2.7 in) spread over 18 days, and humidity levels at 63%. In contrast, November maintains similar temperatures, but the weather becomes significantly wetter, with precipitation soaring to 212 mm (8.3 in) over 25 days, resulting in increased humidity at 74%. For more details on the weather in November, check out Kourou weather in November.

In October, the weather is relatively warm with minimum temperatures around 24°C (76°F) and an average of 27°C (81°F), peaking at 31°C (88°F). The month experiences a moderate amount of rainfall, totaling 69 mm (2.7 in) over approximately 18 days, accompanied by a humidity level of 63%. In contrast, December sees slightly cooler temperatures, with a minimum of 23°C (74°F), an average of 26°C (79°F), and a maximum of 29°C (85°F). However, it is significantly wetter, with precipitation reaching 322 mm (12.7 in) over 30 days, and humidity rising to 79%. For a more detailed overview of December conditions, you can explore Kourou weather in December.

Compare Kourou's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Kourou

In October, Kourou experiences a warm and humid climate, with temperatures that keep the atmosphere vibrant yet sultry. With an average temperature hovering around 27°C, the month feels distinctly hotter compared to the cooler intervals of the year. Additionally, October sees a significant spike in rainfall, with precipitation days reaching nearly two-thirds of the month, adding a lush vibrancy to the landscape. While temperatures remain high, the increased humidity and frequent showers create a unique blend of tropical charm that sets October apart from the drier months. For a more detailed understanding of Kourou's weather patterns throughout the year, explore Kourou Climate.