Last updated: August 21, 2025
May in Kourou, French Guiana showcases a tropical climate, characterized by maximum temperatures reaching 30°C (86°F) and an average of 26°C (79°F), while the nights cool down to a minimum of 24°C (75°F). This month is marked by significant rainfall, accumulating 541 mm (21.3 in) over 30 rainy days, resulting in a high humidity level of 68%. Visitors can expect a vibrant, lush environment, as the frequent showers contribute to the region's lush landscapes. Kourou's May weather is both a flamboyant display of tropicality and a reminder of the area's dynamic climatic patterns.
In May, Kourou, French Guiana, begins to feel the warmth of approaching summer, with temperatures showing a subtle yet noticeable trend. The month sees a minimum temperature of 24°C (75°F), a slight rise from previous months, while the average remains stable at 26°C (79°F). As the days grow warmer, the maximum temperature escalates to 30°C (86°F), marking the highest peak so far this year. This shift into hotter days heralds a transition towards the humid and vibrant days of the wet season, making May an exciting time for those looking to experience the lush beauty and intense climate of this tropical paradise.
May is a significant month for precipitation in Kourou, French Guiana, with an impressive total of 541 mm (21.3 in) recorded, making it one of the wettest months of the year. This downpour occurs over 30 days, indicating that rainfall is a consistent presence throughout the month. The dramatic rise in May's precipitation follows a notable increase from April's already substantial 375 mm (14.8 in), marking a continual upward trend as the region transitions into its wetter season. Compared to the drier months like August and September, where averages drop to 114 mm (4.5 in) and 92 mm (3.6 in) respectively, May serves as a reminder of Kourou's lush, tropical climate, characterized by abundant rainfall and a vibrant ecosystem thriving under such conditions.
In Kourou, French Guiana, May is characterized by a humidity level of 68%, which reflects a gradual rise from the drier months of early spring. This slight uptick follows four months of steady 66% humidity, indicating a shift as the region approaches the wetter half of the year. The transition becomes more pronounced in June, when humidity soars to 86%, leaving May as a pivotal period that hints at the impending increase in moisture. Overall, while May offers a relatively comfortable atmosphere, it serves as a precursor to the heightened humidity that defines the tropical climate throughout the summer months.
In May, Kourou, French Guiana, maintains its reputation for intense sunlight with a UV Index of 14, categorized as extreme. This means that residents and visitors alike should exercise caution, as unprotected skin can burn in just 10 minutes. The trend in recent months has shown a slight decrease from the peak UV Index of 16 observed in both March and April, but the risks remain critically high. The consistency of extreme UV levels from January through June highlights the importance of sun safety practices year-round. For more detailed information, visit Kourou UV Index.
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As May unfurls its vibrant energy in Kourou, French Guiana, the region basks in 232 hours of sunshine, marking a slight dip from the sunniest months earlier in the year. While April enjoyed 258 hours of golden rays, May's weather demonstrates the characteristic warmth of the transition towards the dry season. The trend for the upcoming months looks promising, with sunshine hours steadily increasing from May into July, peaking at an impressive 315 hours. As the year progresses, Kourou's residents can anticipate not just a return to sunnier days, but also the joyful embrace of lush tropical beauty that accompanies the longer days of summer.
In Kourou, French Guiana, May sees a notable dip in sunny weather, with a mere 10% chance of sunshine gracing the skies. This trend reflects a gradual decline in sunny days as the year progresses, peaking in the more favorable months of August and September, where chances rise to 36% and 42% respectively. The drop in May comes on the heels of slightly better conditions in April, which sits at 11%, suggesting an emerging wet season. As we look at the broader context, it's clear that while early months like January and March bring a modest share of sunshine, the latter part of the year consistently offers more favorable weather, making it a prime time for outdoor activities in this tropical paradise.
In Kourou, French Guiana, daylight duration exhibits a fascinating consistency throughout the year. Beginning with 11 hours in January and February, the days lengthen steadily as spring approaches, peaking at 12 hours from March through August. This steady 12-hour stretch creates an ideal balance of light for outdoor activities and exploration. As the year progresses into the autumn months, daylight begins to recede once again, returning to 11 hours by October. This rhythmic pattern of daylight emphasizes Kourou's tropical climate, offering a unique experience for both locals and visitors who thrive under its abundant sun.
May marks a transition into calmer winds in Kourou, French Guiana, where the average wind speed drops to 4.1 m/s (9 mph). This gradual decline follows a steady pattern from April's peak, which witnessed wind speeds at 4.3 m/s (10 mph). Notably, as the year progresses, a distinct downward trend emerges, with the wind speed continuing to decrease through June and July, reaching a low of 2.7 m/s (6 mph) in the heart of winter. This softer breeze in May signals a peaceful reprieve before the even milder conditions of the following months, painting a picture of a serene, tropical atmosphere as the region transitions into the mid-year.
Weather in Kourou varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Kourou, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January both feature warm temperatures, with average highs around 26°C (79°F). However, May tends to be slightly hotter, reaching maximums of 30°C (86°F) compared to January's 29°C (85°F). In terms of precipitation, May is significantly wetter, receiving 541 mm (21.3 in) over 30 days, while January sees only 202 mm (8.0 in) of rain across 23 days. Humidity levels are similar in both months, with May at 68% and January at 70%. For more detailed information on January weather, visit Kourou weather in January.
In May, the weather is characterized by slightly warmer temperatures, with a minimum of 24°C (75°F) and maximum reaching 30°C (86°F), compared to February, which has a slightly cooler maximum of 29°C (84°F). Both months share an average temperature of 26°C (79°F). However, May sees significantly higher precipitation at 541 mm (21.3 in) over 30 days, while February experiences just 172 mm (6.8 in) across 23 days. Humidity levels are similar, with May at 68% and February at 66%, making both months relatively humid. For more on February weather specifics, visit Kourou weather in February.
In comparing the weather during March and May, both months share a similar temperature range, with minimums around 24°C (75°F) and average temperatures hovering at 26°C (79°F). However, May typically sees slightly warmer maximums, reaching up to 30°C (86°F), compared to 29°C (85°F) in March. One of the most significant differences lies in precipitation, with May experiencing a substantial increase at 541 mm (21.3 in) over 30 days, while March only records 191 mm (7.5 in) across 25 days. Humidity levels are also comparable, with May at 68% and March at 66%. For a closer look at the weather in March, you can check out Kourou weather in March.
In comparing the weather between April and May, we see some notable differences. Both months have similar average temperatures, with April ranging from a minimum of 23°C to a maximum of 29°C, while May features slightly higher maximum temperatures, reaching up to 30°C. However, May experiences significantly more rainfall, with a total precipitation of 541 mm over 30 days compared to April's 375 mm over 28 days. Additionally, humidity is slightly higher in May at 68% compared to 66% in April. For a detailed overview of April’s weather, you can check out Kourou weather in April.
In May, temperatures in Kourou typically range from a minimum of 24°C (75°F) to a maximum of 30°C (86°F), with an average of 26°C (79°F). However, this month also sees significant rainfall, accumulating to 541 mm (21.3 in) over 30 days and contributing to a humidity level of 68%. In contrast, June maintains a similar temperature range, with a minimum of 23°C (74°F) and a maximum of 30°C (87°F), while the average remains steady at 26°C (79°F). The precipitation in June is lower, totaling 448 mm (17.6 in) over the same number of days; however, humidity rises to 86%, making the air feel more sultry. For more detailed information, check out the Kourou weather in June.
In comparing the weather of May and July, we see some notable similarities and differences. Both months feature an average temperature of 26°C (79°F), with July slightly warmer at a maximum of 31°C (88°F) compared to May's maximum of 30°C (86°F). However, May experiences significantly higher precipitation, with 541 mm (21.3 in) across 30 days, while July sees only 259 mm (10.2 in) over 29 days. Additionally, July's humidity is a touch higher at 76%, compared to May's 68%. For more detailed insights on July weather patterns, you can visit Kourou weather in July.
In May, temperatures range from a minimum of 24°C (75°F) to a maximum of 30°C (86°F), with an average temperature of 26°C (79°F). This month experiences significant rainfall, accumulating 541 mm (21.3 in) over 30 days, coupled with a humidity level of 68%. In contrast, August offers slightly higher average temperatures with a minimum of 23°C (74°F) and a maximum of 31°C (88°F), averaging 27°C (81°F). Notably, precipitation drops sharply to 114 mm (4.5 in) over just 21 days, and humidity decreases slightly to 65%. This marked difference in rainfall between the two months highlights a transition from the wetter conditions of May to a drier August. For more detailed information, check out Kourou weather in August.
In May, the weather is characterized by warm temperatures with a minimum of 24°C (75°F), averaging around 26°C (79°F) and peaking at 30°C (86°F). However, this month also sees significant rainfall, with a total precipitation of 541 mm (21.3 in) spread over 30 days, contributing to a relatively high humidity level of 68%. In contrast, September offers slightly warmer temperatures, with a minimum of 24°C (75°F), an average of 27°C (81°F), and a maximum of 31°C (88°F). The rainfall in September is drastically reduced to 92 mm (3.6 in) over 16 days, resulting in lower humidity at 62%. For more detailed information, you can check Kourou weather in September.
May and October present a notable contrast in weather conditions despite similar average temperatures. In May, the climate is characterized by higher precipitation, totaling 541 mm over 30 days, creating a more humid atmosphere with a humidity level of 68%. In contrast, October sees significantly reduced rainfall at 69 mm over just 18 days, resulting in a lower humidity of 63%. While both months enjoy warm temperatures, October offers slightly warmer averages with max temperatures reaching 31°C (88°F) compared to May's 30°C (86°F). For more insights, check out Kourou weather in October.
May and November exhibit similar temperature ranges, with May showing a minimum of 24°C (75°F) and a maximum of 30°C (86°F), while November features a slightly higher average temperature of 27°C (80°F), peaking at 31°C (87°F). However, May is significantly wetter, receiving 541 mm (21.3 in) of precipitation over 30 days compared to November's 212 mm (8.3 in) across 25 days. Additionally, November experiences higher humidity at 74%, compared to May's 68%. For more detailed insights, you can check Kourou weather in November.
In comparing the weather between May and December, both months exhibit a similar average temperature of around 26°C (79°F). However, May tends to be slightly warmer with maximum temperatures reaching 30°C (86°F) compared to December's 29°C (85°F). Precipitation levels are significantly higher in May, with 541 mm (21.3 in) of rain over the month, while December sees a more manageable 322 mm (12.7 in). Additionally, humidity is higher in December at 79%, contrasted with May's 68%. For more detailed insights on December's climate, you can check out Kourou weather in December.
In May, Kourou experiences a distinct shift in weather, characterized by consistent warmth and high humidity. With temperatures hovering around a comfortable average of 26°C (79°F) and frequent rain, this month sees a stark increase in precipitation compared to the drier months. The average rainfall of 541 mm (21.3 in) spread across the entire month contributes to a soggy atmosphere, making it one of the wettest times of the year. However, the lush greenery and vibrant landscapes emerging from this rainfall showcase the region's unique beauty during May, offering a different perspective from the dryer periods. For more detailed insights, check out Kourou Climate.