July weather forecast
French Guiana

In French Guiana, the month of July marks the continuation of the lesser rainy season, with rainfall decreasing even further from the levels seen in June. The coastal capital of Cayenne experiences an average rainfall of approximately 150mm (5.91"), representing one of the driest months of the year. The number of rainy days decreases as well, averaging 12 days throughout the month.

Inland regions, such as the city of Saint-Laurent-du-Maroni, follow a similar trend, recording reduced precipitation during July. The reduced rainfall during this month further signifies the influence of the lesser rainy season.

In spite of the reduced precipitation, temperatures remain steady, characteristic of French Guiana's tropical climate. Nighttime temperatures usually fall to a minimum of 23°C (73.4°F), with daytime highs reaching approximately 30°C (86°F). This consistent temperature range, even during the lesser rainy season, exemplifies the unvarying warmth typical of the region.

Sunlight increases marginally during July, with coastal regions seeing about 7 hours of sunshine per day. The frequency of overcast days diminishes due to the reduced rainfall, resulting in partly cloudy to clear skies becoming more common.

July, with its decreased rainfall and slightly increased sunlight, presents a more favorable weather outlook for visitors to French Guiana. Despite the persistent high humidity, travel during this month could provide a more pleasant experience, with fewer rain events and more opportunities for outdoor activities.

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• Cayenne - July »
  In Cayenne, French Guiana, in July, it is raining for 20.6 days, with typically 246mm (9.69") of accumulated precipitation. In Cayenne, in July, during 20.6 rainfall days, 246mm (9.69") of precipitation is typically accumulated.
• Kourou - July »
  In Kourou in July, during 15.9 rainfall days, 149mm (5.87") of precipitation is typically accumulated. On the first day of July in Kourou sunrise is at 06:22 and sunset at 18:47.
• Remire-Montjoly - July »
  In Remire-Montjoly in July, the average water temperature is 28.6°C (83.5°F). In Remire-Montjoly in July, the average water temperature is 28.6°C (83.5°F).
• Maripasoula - July »
  On the last day of July, in Maripasoula, sunrise is at 06:34 and sunset at 18:50 -03. Shifting into July, Maripasoula records an average high-temperature of a still hot 31.1°C (88°F), presenting minor fluctuations compared to the previous month.
• Mana - July »
  July and August, with an average sea temperature of 28.4°C (83.1°F), are months with the warmest seawater in Mana. The months with the highest UV index in Mana are July through November, with an average maximum UV index of 7.
• Apatou - July »
  In Apatou in July, it is raining for 24.5 days, with typically 107mm (4.21") of accumulated precipitation. The months with the highest UV index in Apatou are July through November, with an average maximum UV index of 7.
• Grand-Santi - July »
  The month of July ushers in a warm trend, with clearer climatic conditions noted in Grand-Santi, French Guiana. The months with the highest UV index in Grand-Santi are July through November, with an average maximum UV index of 7.
• Camopi - July »
  July in Camopi, French Guiana triumphs with a special weather event: a maximum temperature spike, seeing the mercury shoot up to an annual high of 30.3°C (86.5°F). In Camopi during July, the rain falls for 26.8 days and regularly aggregates up to 99mm (3.9") of precipitation.
• Iracoubo - July »
  In Iracoubo, during July, the rain falls for 27.4 days and regularly aggregates up to 146mm (5.75") of precipitation. In July, the average heat index, which combines air temperature and relative humidity, is evaluated at 36°C (96.8°F).
• Saul - July »
  In Saul in July, during 24.6 rainfall days, 97mm (3.82") of precipitation is typically accumulated. In July, the average relative humidity in Saul, French Guiana, is 85%.