Last updated: August 21, 2025
March in Cayenne, French Guiana brings warm tropical weather, marked by an average temperature of 26°C (80°F). Daily highs can reach a maximum of 30°C (86°F), while nights remain comfortably mild with a minimum of 24°C (75°F). This month is characterized by significant rainfall, with 196 mm (7.7 in) of precipitation spread across 25 days, contributing to the region's lush greenery. Humidity levels hover around 76%, adding to the typical tropical feel of this captivating destination. Visitors should be prepared for occasional downpours, making March a month of vibrant contrasts and rich natural beauty.
In March, Cayenne, French Guiana experiences a delightful mix of warmth and humidity, with temperatures starting at a minimum of 24°C (75°F) and reaching a comfortable average of 26°C (80°F). The month showcases a peak, with highs soaring to 30°C (86°F), marking a subtle uptick from the preceding months. This gradual rise in temperature, especially from February, hints at the region's approach to warmer weather as it transitions into April. Overall, March presents an inviting climate for outdoor activities, reflecting the lush tropical environment that Cayenne is known for. Whether exploring local markets or enjoying the vibrant nature, the balance of warmth makes March an appealing time to visit this enchanting locale.
March in Cayenne, French Guiana, continues the trend of significant rainfall characteristic of the region, with 196 mm (7.7 in) of precipitation spread over 25 days. This marks a slight decrease from the preceding months, with February recording 189 mm and January at 225 mm, yet it sets the stage for the dramatic uptick in April, where totals leap to 390 mm (15.4 in). The gradual increase in both rainfall and rainy days leading into the peak wet season in May, which sees an impressive 576 mm, highlights the stark climatic shifts inherent to this tropical paradise. As March transitions further into the heart of the rainy season, it exemplifies the ongoing narrative of lush, green landscapes thrilled by the consistent, nourishing downpours.
In March, Cayenne experiences a humidity level of 76%, mirroring the slightly lower humidity of February. This stability is part of a broader trend, where humidity remains relatively consistent during the first quarter of the year, ranging between 76% and 78%. As the region transitions into the wetter months, April sees a modest rise to 77%, foreshadowing the significantly increased humidity that comes in June, which jumps to 87%. Overall, while March maintains a pleasant and damp atmosphere, it sets the stage for the higher humidity levels that characterize the later months, creating a distinct rhythm to Cayenne's tropical climate.
In March, Cayenne, French Guiana, experiences one of its peak UV Index levels, reaching an intense 16. This marks an upward trend from both January and February, which recorded UV indices of 13 and 14, respectively. The exposure category remains at an extreme level throughout this period, with a consistent burn time of just 10 minutes. This sustained intensity highlights the need for vigilant sun protection as residents and visitors alike enjoy the vibrant tropical climate. As April follows with an equally high UV index, sun safety remains crucial. For more details on UV trends year-round, visit Cayenne UV Index.
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March in Cayenne, French Guiana, is a vibrant showcase of sunshine, boasting an impressive 312 hours of bright rays—significantly more than the 245 hours recorded in January and the 255 hours of February. This burst of sunlight marks the transition into a sun-drenched year, setting the stage for even sunnier months ahead. As the warmth escalates, April experiences a slight dip to 275 hours, yet remains abundant. The upward trend resumes in July, where the sunshine peaks with 331 hours, illustrating Cayenne's climatic charm. This sunny trajectory continues into the latter months, reaching a remarkable climax in August at 346 hours. With March heralding this luminous journey, it prepares residents and visitors alike for the sun-kissed days to come.
In March, Cayenne, French Guiana, enjoys a modest 19% chance of sunny weather, making it one of the more favorable months for sun seekers compared to the preceding January and February, which both hover around 18%. However, this bright prospect is fleeting, as April sees a sharp decline to 11%, suggesting that March could be a prime time to soak up some rays before the clouds gather. Looking ahead, the sunny chances begin to climb significantly in the warmer months of June and July, peaking at 24%, and later reaching a impressive 41% in August, indicating a clear trend towards drier, sunnier weather later in the dry season.
In March, Cayenne, French Guiana welcomes an inviting increase in daylight, enjoying a full 12 hours of sunlight. This marks a notable shift from the consistent 11 hours observed in the previous months of January and February. As the year progresses, daylight remains stable at 12 hours through the spring and summer months of April to August, creating a vibrant atmosphere ideal for exploration and outdoor activities. As the days begin to shorten again in October, transitioning back to 11 hours, the rhythm of nature subtly reminds us of the cyclical patterns of time in this tropical paradise.
March winds in Cayenne, French Guiana tend to be gentle, averaging around 5.0 m/s (11 mph), slightly down from February's breezier 6.0 m/s (14 mph). This transitional month marks the beginning of a notable downward trend in wind speeds, which will continue into the spring. As we glide into April, the winds further mellow to 4.4 m/s (10 mph) and progressively become calmer, reaching their yearly lows in the heart of summer. While March still retains a hint of the lively gusts from earlier months, it subtly ushers in a period of serene breezes that characterize the later spring and summer months. Whether you're exploring the vibrant city or relaxing by the coast, the gentle March winds offer a perfect backdrop for embracing the beauty of Cayenne.
Weather in Cayenne varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Cayenne, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, both months exhibit similar average temperatures, with March showing a minimum of 24°C (75°F), an average of 26°C (80°F), and a maximum of 30°C (86°F). January, on the other hand, has slightly lower temperatures, with a minimum of 23°C (74°F), an average of 26°C (79°F), and a maximum of 29°C (84°F). Precipitation levels differ slightly, with March receiving 196 mm (7.7 in) over 25 days, compared to January's 225 mm (8.9 in) over 23 days. Humidity remains high in both months, with March at 76% and January slightly higher at 78%. For more details, check out Cayenne weather in January.
In comparing the weather between March and February, both months showcase similar temperature ranges, with March experiencing a slight increase in maximum temperatures, reaching up to 30°C (86°F) compared to February's maximum of 28°C (83°F). While the average temperatures remain close, February edges out March with a marginally lower average of 26°C (79°F). Precipitation levels are comparable, with March receiving 196 mm (7.7 in) over 25 days and February 189 mm (7.5 in) across 24 days, indicating a similarly wet climate in both months. Humidity levels remain constant at 76% for both periods, creating a consistently humid environment. For a detailed look at February's weather, you can visit Cayenne weather in February.
In March, the weather typically sees temperatures ranging from a minimum of 24°C (75°F) to a maximum of 30°C (86°F), with an average of 26°C (80°F). It is characterized by significant rainfall, totaling 196 mm (7.7 in) over 25 days and a humidity level of 76%. In contrast, April maintains a similar temperature profile, with a minimum of 24°C (75°F), an average of 26°C (80°F), and a slightly lower maximum of 29°C (85°F). However, April is notably wetter, with precipitation reaching 390 mm (15.4 in) across 27 days, and a humidity level that marginally increases to 77%. For more detailed insights, check out Cayenne weather in April.
In comparing the weather of March and May, both months feature similar temperature ranges, with minimums around 24°C (75°F), average temperatures at 26°C (80°F), and maximums reaching 30°C (86°F). However, May experiences significantly higher precipitation, totaling 576 mm (22.7 in) over 30 days, compared to March's 196 mm (7.7 in) over 25 days. The humidity also sees a slight increase in May, rising to 78%, while March holds at 76%. For a more detailed look at the weather conditions, you can visit Cayenne weather in May.
March and June share similar temperature ranges, with both months featuring minimum temperatures around 24°C (75°F) and maximums peaking at 30°C (86°F). However, June experiences significantly more rainfall, with 433 mm (17.1 inches) compared to March's 196 mm (7.7 inches), and precipitation occurs on more days—29 in June versus 25 in March. This increased rainfall in June contributes to a higher humidity level of 87%, compared to March's 76%. For more detailed insights on June weather, check out Cayenne weather in June.
In comparing the weather conditions of March and July, we observe that both months share a similar temperature range, with minimum temperatures around 24°C (75°F), average temperatures at 26°C (80°F), and maximum temperatures nearing 30°C (86°F in March and 87°F in July). However, July experiences increased precipitation levels, totaling 269 mm (10.6 in) over 29 days, compared to March's 196 mm (7.7 in) over 25 days. The humidity also rises slightly in July at 81%, up from 76% in March. This additional rainfall and humidity in July can make it feel more tropical. For more details, you can check Cayenne weather in July.
In comparing the weather between March and August, both months feature warm temperatures, but August tends to be slightly warmer on average. March has minimum temperatures of 24°C (75°F) and averages around 26°C (80°F), with a maximum reaching 30°C (86°F). In contrast, August sees similar minimum temperatures but averages slightly higher at 27°C (81°F) and peaks at 32°C (89°F). While March is characterized by heavier precipitation, totaling 196 mm (7.7 in) over 25 days, August experiences significantly less rainfall with only 92 mm (3.6 in) spread across 18 days. Humidity levels are comparable, with March at 76% and August slightly higher at 80%. For more details on August weather, you can visit Cayenne weather in August.
March and September in Cayenne present noteworthy differences in weather patterns despite having similar minimum temperatures of 24°C (75°F). In March, the average temperature is slightly cooler at 26°C (80°F), peaking at 30°C (86°F), while September sees higher averages with a peak of 32°C (90°F). Precipitation is significantly heavier in March, with 196 mm (7.7 in) falling over 25 days, compared to just 56 mm (2.2 in) across 12 days in September. Both months experience high humidity levels, with March registering at 76% and September slightly higher at 79%. For a more detailed look at September weather, you can check out Cayenne weather in September.
In comparing the weather between March and October, both months experience warm temperatures, but October is notably warmer on average, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (90°F), compared to March's range of 24°C (75°F) to 30°C (86°F). Additionally, October has significantly lower precipitation, totaling 59 mm (2.3 in) over 16 days, while March sees much higher rainfall of 196 mm (7.7 in) across 25 days. Humidity levels are slightly higher in October at 80%, compared to 76% in March. For a more detailed look at October weather, you can visit Cayenne weather in October.
In comparing the weather of March and November, both months exhibit similar minimum temperatures around 24°C (75°F to 76°F) and generally warm conditions. However, November tends to be slightly warmer, with average temperatures reaching 27°C (81°F) and maximums at 31°C (88°F), compared to March’s average of 26°C (80°F) and maximum of 30°C (86°F). Precipitation is notably high in both months, with March seeing 196 mm (7.7 in) over 25 days and November slightly more at 204 mm (8.0 in) over 24 days. Additionally, humidity levels are higher in November at 85%, compared to March’s 76%. For more details, check out Cayenne weather in November.
In comparing the weather of March and December, both months experience similar temperature ranges, with minimums of 24°C (75°F), average temperatures around 26°C (79°F), and maximums reaching 30°C (86°F). However, December is notably wetter, receiving 349 mm (13.7 in) of precipitation over 29 days, compared to March's 196 mm (7.7 in) over 25 days. Additionally, December has a higher humidity level at 84%, compared to March's 76%. For more details, visit Cayenne weather in December.
March in Cayenne reveals a transition into the heart of the rainy season, characterized by its noticeably high humidity and frequent rainfall. With 25 days of precipitation, the atmosphere feels more vibrant yet humid compared to the drier months. Temperatures remain relatively stable, hovering around a warm average of 26°C, though the frequent showers provide a refreshing respite from the heat. This month stands out with its lush landscapes, transformed by the 196 mm of rain, making it particularly enticing for nature enthusiasts. For more detailed insights into the climate of this vibrant city, visit Cayenne Climate.