Last updated: August 21, 2025
July in Cayenne, French Guiana, offers a tropical experience characterized by warmth and humidity. With a maximum temperature reaching 30°C (87°F) and an average of 26°C (80°F), the weather remains inviting for outdoor activities. However, expect frequent rainfall with a substantial precipitation amount of 269 mm (10.6 in) across 29 rainy days, making this month one of the wettest. The high humidity level at 81% adds to the tropical ambiance, creating a lush environment that thrives under these conditions. Visitors should prepare for both the heat and the refreshing downpours that define Cayenne in July.
In July, temperatures in Cayenne, French Guiana continue the region’s warm tradition, showcasing a steady warmth with a minimum of 24°C (75°F) and reaching an average of 26°C (80°F). The mercury can peak at 30°C (87°F), reflecting the tropical climate's characteristic warmth. Notably, July maintains a similar temperature pattern seen throughout the earlier months, featuring a consistent blend of comfort and heat, making it ideal for those seeking vibrant outdoor experiences. As the month unfolds, the warmth subtly hints at the rising temperatures anticipated in August, where highs can reach up to 32°C (89°F). This smooth transition characterizes the seasonal evolution in Cayenne, emphasizing its allure in the heart of summer.
In July, Cayenne experiences a notable dip in precipitation compared to the preceding months, recording 269 mm (10.6 in) of rainfall over 29 days. This marks a decline from the intense showers of previous months; June's rainfall peaked at 433 mm (17.1 in) and May's reached a staggering 576 mm (22.7 in). The trend of diminishing rainfall continues into August, where only 92 mm (3.6 in) is expected, signaling a transition to the latter part of the year. This shift in precipitation not only impacts local ecosystems but also offers a respite for residents after the month-long deluge that characterized much of the rainy season. As Cayenne moves forward, the initial decline in rainwater heralds a lighter atmosphere, with significant changes on the horizon for the months ahead.
July in Cayenne, French Guiana sees a humidity level of 81%, marking a slight decrease from the peak of 87% in June. This month is indicative of the region's tropical climate, where humidity generally remains high throughout the year. Following a trend of gradual fluctuations, July’s humidity is higher than the drier months at the beginning of the year, such as January and February, which recorded 78% and 76% respectively. As we transition into August, humidity remains steady at 80%, suggesting a consistency in the warm, moist conditions that define this vibrant coastal city. Overall, July serves as a reminder of the lush, humid environment that characterizes Cayenne’s climate, providing a glimpse into the rhythms of tropical weather patterns.
In July, the UV Index in Cayenne, French Guiana reaches a significant 12, maintaining an extreme exposure category that has been consistent throughout most of the year. While it dips slightly from the higher averages of 14 and 16 noted in earlier months, the burn time remains just 10 minutes. This trend highlights the ongoing intensity of solar radiation in the region, encouraging residents and visitors alike to remain vigilant about sun protection. As we move through the summer, it's crucial to stay informed and take appropriate measures to safeguard your skin in this tropical climate. For more detailed information, explore Cayenne UV Index.
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July shines brightly in Cayenne, French Guiana, as the region basks in an impressive 331 hours of sunshine, making it one of the sunniest months of the year. This burst of sunlight marks a peak that trends upward from the previous months, showcasing a delightful summer ambiance that continues into August with an even greater 346 hours of sunshine. The consistent increase from June's 281 hours illustrates the transition into an exuberant summer, setting a vibrant stage for outdoor adventures and cultural festivities. As the year progresses, the sun-drenched days in Cayenne invite both locals and travelers to revel in the warmth and beauty of this tropical paradise.
In July, the likelihood of sunny weather in Cayenne, French Guiana, reaches 24%, marking a noticeable upswing compared to the preceding months, where chances lean lower, especially in May and April. This increase suggests that as the year progresses into mid-year, residents and visitors are treated to more frequent sunny spells. The trend continues into August, where the chance of sunshine skyrockets to 41%, indicating an exciting shift towards a sunnier climate. Therefore, July serves as a delightful prelude to the sun-drenched days that await in the summer months ahead.
In Cayenne, French Guiana, the daylight duration reveals a striking consistency through the year, particularly evident in July when residents enjoy 12 hours of daylight. This pattern begins in March and remains steady through November, showcasing a tropical climate that minimizes seasonal variation. As the year unfolds, daylight durations fluctuate slightly, hovering around the 12-hour mark for six consecutive months from March to August. This unchanging light not only shapes daily life but also offers a sense of rhythm to the vibrant culture and natural beauty of the region. From January to February, daylight dips to 11 hours before stabilizing, demonstrating how the environment lends itself to an almost eternal summer feel, regardless of the calendar month.
In July, Cayenne experiences its calmest winds of the year, with an average speed of just 2.8 m/s (6 mph). This marks a notable decline from the breezier months earlier in the year, as winds gradually decrease from January's robust 5.2 m/s down to this languid pace. Following a similar trend, June also sees low wind activity, with speeds dipping to 3.1 m/s (7 mph), hinting at a mid-year lull in atmospheric dynamics. As summer transitions into the more active months of August and onward, the winds pick up again, but July remains a serene moment in Cayenne's climate profile, making it an ideal time for relaxation amidst the gentle whispers of the tropical breeze.
Weather in Cayenne varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Cayenne, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between July and January, we see mild differences in temperature and precipitation. Both months feature similar average temperatures, with July reaching a minimum of 24°C (75°F) and a maximum of 30°C (87°F), while January has a minimum of 23°C (74°F) and a maximum of 29°C (84°F). However, July is notably wetter, with 269 mm (10.6 in) of rain over 29 days compared to January's 225 mm (8.9 in) over 23 days. Additionally, humidity levels are slightly higher in July at 81% versus 78% in January. For a more detailed look at January weather, you can visit Cayenne weather in January.
In comparing July and February weather, both months experience similar minimum and average temperatures, around 24°C (75°F) and 26°C (79-80°F) respectively. However, July tends to be warmer overall, with maximum temperatures reaching up to 30°C (87°F), compared to February's high of 28°C (83°F). Precipitation levels also differ significantly; July sees a substantial 269 mm (10.6 in) of rain over 29 days, while February has lower rainfall of 189 mm (7.5 in) spread over 24 days. Additionally, the humidity in July is slightly higher at 81%, compared to February's 76%. For more details on February weather, you can explore Cayenne weather in February.
In both July and March, the temperatures in Cayenne are strikingly similar, with average highs around 26°C (80°F) and minimums of 24°C (75°F). However, July experiences significantly more rainfall, with an average precipitation of 269 mm (10.6 in) spread over 29 days, compared to March's 196 mm (7.7 in) over 25 days. This leads to higher humidity levels in July at 81%, while March is slightly less humid at 76%. For a detailed comparison of weather conditions, you can check the following link: Cayenne weather in March.
In comparing the weather between July and April, both months experience similar temperature ranges, with minimums around 24°C (75°F) and averages at 26°C (80°F). However, July typically has slightly higher maximum temperatures, peaking at 30°C (87°F), compared to April's 29°C (85°F). When it comes to precipitation, April is notably wetter, receiving 390 mm (15.4 in) over 27 days, while July totals 269 mm (10.6 in) across 29 days. The humidity levels are also comparable, with July at 81% and April a bit lower at 77%. For more detailed information, you can check Cayenne weather in April.
In comparing the weather of July and May, it's notable that both months share similar temperature ranges, with July having a minimum of 24°C (75°F), an average of 26°C (80°F), and a maximum of 30°C (87°F), while May presents nearly identical values. However, the two months differ significantly in terms of precipitation and humidity. July experiences 269 mm (10.6 in) of rain over 29 days, resulting in a humidity level of 81%, while May sees a much higher rainfall of 576 mm (22.7 in) across 30 days, with slightly lower humidity at 78%. For further details on May's weather conditions, you can visit Cayenne weather in May.
In comparing the weather between June and July, we see that both months have similar temperature ranges, with minimums around 23-24°C (75°F) and maximums peaking at 30°C (86-87°F). However, June experiences significantly higher precipitation, totaling 433 mm (17.1 in) compared to July's 269 mm (10.6 in), despite both months having the same number of rainy days at 29. Additionally, humidity levels are slightly higher in June at 87%, compared to 81% in July, making July feel a bit more comfortable overall. For more detailed information on June weather, check out Cayenne weather in June.
July and August in Cayenne exhibit notable differences in weather patterns. July tends to be slightly cooler with an average temperature of 26°C (80°F), while August sees a rise to an average of 27°C (81°F). Additionally, August experiences higher maximum temperatures, reaching up to 32°C (89°F) compared to July's 30°C (87°F). In terms of precipitation, July is significantly wetter, receiving 269 mm (10.6 in) over 29 days, whereas August has a much lighter rainfall of 92 mm (3.6 in) across 18 days. Humidity levels remain relatively consistent, with July at 81% and August at 80%. For more detailed insights, you can check the weather specifics through this link: Cayenne weather in August.
In comparing the weather of July and September, we observe notable differences in temperature and precipitation patterns. July experiences a cooler climate with an average temperature of 26°C (80°F) and high humidity at 81%, accompanied by significant rainfall totaling 269 mm (10.6 in) across 29 days. In contrast, September boasts a warmer average of 28°C (82°F) and higher maximum temperatures reaching 32°C (90°F), while precipitation drops significantly to 56 mm (2.2 in) over just 12 days, resulting in slightly lower humidity at 79%. This shift indicates a transition from the wet season in July to a relatively drier period in September. For more detailed insights, you can check Cayenne weather in September.
In comparison to July, October offers slightly warmer temperatures, with average highs reaching up to 32°C (90°F) and lows around 25°C (77°F). July tends to be more humid, with an average humidity of 81%, while October maintains a similar level at 80%. Interestingly, October experiences significantly less rainfall, only 59 mm (2.3 in) spread over 16 days, compared to July's 269 mm (10.6 in) over 29 days. For a more detailed look at October's weather in Cayenne, you can check out this link: Cayenne weather in October.
In both July and November, temperatures remain relatively warm in Cayenne, with July experiencing a minimum of 24°C (75°F) and an average of 26°C (80°F), while November sees slightly higher averages at a minimum of 24°C (76°F) and an average of 27°C (81°F). Interestingly, November has a higher maximum temperature of 31°C (88°F) compared to July's 30°C (87°F). Precipitation decreases from July's 269 mm (10.6 in) over 29 days to November's 204 mm (8.0 in) across 24 days, indicating that while both months are humid, November is slightly less rainy with a humidity level of 85% compared to July's 81%. For more detailed information, check Cayenne weather in November.
In comparing the weather of July and December, we find that both months maintain a consistent range of temperatures, with minimums around 24°C (75°F) and averages hovering around 26°C (79-80°F). However, December tends to be slightly wetter, experiencing a total precipitation of 349 mm (13.7 in) compared to July's 269 mm (10.6 in), both spread over 29 days. Additionally, humidity levels are slightly higher in December at 84%, compared to 81% in July, contributing to a more tropical feel overall. For more detailed insights on December weather, check out Cayenne weather in December.
July weather in Cayenne stands out with its high humidity and frequent rainfall, making it one of the wetter months of the year. While temperatures remain warm, hovering around the average of 26°C (80°F), the pervasive moisture and nearly daily precipitation can create a uniquely tropical atmosphere. Unlike drier months, July's 29 days of rain contribute to the lush surroundings typical of this time, offering a vibrant experience for those who appreciate the rich biodiversity. For more detailed insights into how Cayenne's weather evolves throughout the year, visit Cayenne Climate.