Climate and monthly weather forecastCacao, French Guiana
Climate and monthly weather forecast
The climate of Cacao
Cacao, French Guiana resides in an area classified under the Köppen climate system as Af, known as the tropical rainforest climate. Noticeably near the equator, the city experiences high temperatures and precipitation levels throughout the year.Examining the weather records for Cacao reveals some patterns. The temperature ranges from lows of 23.8°C (74.8°F) achieved in both June and July to highs reaching 31.6°C (88.9°F) in October. Relative humidity hovers around 78% to 86% throughout the year, reflecting the abundance of moisture in the air. Also, the variation in daylight hours persists between 11.9 hours in January, December and November and reaching up to 12.4 hours in June and July.
Unique patterns surface when analyzing rainfall and sunshine duration. Notably, the month with the most rainfall is May with 293mm (11.54"), whereas the driest month is September with 23mm (0.91"). Additionally, sunshine duration oscillates between 5.6 hours in February to 9.2 hours in September.
The best time to visit Cacao
Glancing through the data, the optimal period to visit Cacao comes during the month of September. This is when the area receives the least amount of rainfall at just 23mm (0.91") over about 12 days. Sunshine duration is highest in this month with 9.2 hours daily. In contrast to many destinations, where reduced rainfall often equates to lower temperatures, Cacao sustains high temperatures during this period with averages from 23.9°C (75°F) to 31.5°C (88.7°F).The worst time to visit Cacao
The month of May presents the least favorable conditions for a visit with 293mm (11.54") of rainfall over approximately 29 days. Daily sunshine hours hit their low at merely 6.9 hours. Contrastingly, temperatures still remain warm during this period, ranging from 24.7°C (76.5°F) to 28.6°C (83.5°F), amplifying the discomfort brought on by the high humidity and rainfall.Spring weather in Cacao
In Cacao, the months of March, April, and May make up the spring season. Temperature during this period remains relatively constant, with March seeing an average of 24.2 to 28.3°C (82.9°F), April having 24.7 to 28.5°C (83.3°F), and May ranging from 24.7 to 28.6°C (83.5°F). High levels of rainfall are experienced during the spring months with 128mm (5.04"), 208mm (8.19"), and 293mm (11.54") in March, April, and May respectively. The spring months also witness a relatively consistent amount of daylight at 12.1, 12.2, and 12.3 hours respectively.Summer weather in Cacao
Between June and August, summer in Cacao brings slightly hotter temperatures, with the highs climbing up to 30.9°C (87.6°F) in August. The humidity remains consistent with the rest of the year, adding to a sense of warmth. June sees a rainfall of 234mm (9.21"), while rainfall reduces significantly in July and August with 133mm (5.24") and 68mm (2.68") respectively.Autumn weather in Cacao
Autumn, occurring from September to November, is marked by moderately shifting temperatures from lows of 23.9°C (75°F) in September to highs of 31.6°C (88.9°F) in October. Rainfall dips to a yearly low of 23mm (0.91") and 26mm (1.02") in September and October but rises to 73mm (2.87") by November.Winter weather in Cacao
In Cacao, winter spans December to February, featuring temperatures from 23.9 to 28°C (82.4°F) in December, 24 to 27.7°C (81.9°F) in January, and 24.2 to 28.3°C (82.9°F) in February. Rainfall is fairly high during this period, with December registering 204mm (8.03"), January at 154mm (6.06"), and February with 163mm (6.42"). Winter season also offers slightly reduced hours of daylight with 11.9 hours in December and January, and 12 hours in February.Weather in January
Beginning the year, January in Cacao, French Guiana experiences a blend of warmth and moisture. The temperatures peak at 28°C (82.4°F) and dip to a low of 24°C (75.2°F), with a relative humidity of 84%. Being the start of the rainy season, the town receives a substantial downpour of 154mm (6.06") over 28 rainfall days. Weather in January »Weather in February
With February still within the rainy season, steady rainfall persists in Cacao. Precipitation increases slightly to 163mm (6.42") compared to the preceding month. However, the town enjoys warmer and more humid conditions, with an average high of 27.7°C (81.9°F) and relative humidity of 85%. Weather in February »Weather in March
As March rolls in, moderate weather conditions continue to prevail in Cacao. With an increased high temperature of 28.3°C (82.9°F), the climatic conditions start to shift slightly towards the warmer end of the spectrum. The rain eases off a bit, settling at 128mm (5.04"), which is lower than the February rainfall. Weather in March »Weather in April
Moving into April, Cacao sees a significant escalation in the volume of rainfall, reaching a peak of 208mm (8.19") over 27.2 days. Despite the surge in rain, temperatures remain fairly constant with a high of 28.5°C (83.3°F), ensuring a balanced and somewhat sultry climate. Weather in April »Weather in May
In May, Cacao receives the highest annual rainfall amount, with a whopping 293mm (11.54") of downpour. Despite the peak in rainfall, temperatures remain consistent with a high of 28.6°C (83.5°F). Alongside this, the amount of daylight increases, allowing longer hours for outdoor activities. Weather in May »Weather in June
As Cacao transitions into June, the town witnesses a significant reduction in rainfall, with the amount lowering to 234mm (9.21"). This decrease in precipitation is accompanied by a slight drop in temperature, with the high being 28.8°C (83.8°F). Weather in June »Weather in July
Arriving in July, Cacao sees further reduction in rainfall, recording a lowered amount of 133mm (5.24"). On the other hand, temperatures rise to a high of 29.8°C (85.6°F), showcasing some of the hottest conditions in the year. Interestingly, the town gets a little less humid, owing to a relative humidity of 81%. Weather in July »Weather in August
With the onset of August, Cacao's annual rainfall drops to its lowest, recording a minimal 68mm (2.68") of precipitation. The temperatures continue to rise, reaching a peak of 30.9°C (87.6°F), making August the warmest month of the year for the town. Weather in August »Weather in September
In September, the rainfall shows a further decrease, reaching a record low of 23mm (0.91") for the year in Cacao. Temperatures remain high at 31.5°C (88.7°F), maintaining the warm climate of the town. A slight increase in wind speed helps to mitigate the heat, resulting in pleasant weather conditions overall. Weather in September »Weather in October
October ushers in a slight increase in rainfall, amounting to 26mm (1.02"), yet considerably lower than the earlier months. High temperatures persist at 31.6°C (88.9°F), extending the warmth into the autumn season. Cloud cover begins to increase, marking the initiation of a gradual shift in climate. Weather in October »Weather in November
As November unfolds, the rainfall in Cacao rises to 73mm (2.87"), indicating the return of the rainy season. The high temperature recedes to 30.8°C (87.4°F), imparting a slight coolness to the air. The town begins to grow more humid again, with the humidity index reverting to 78%. Weather in November »Weather in December
Concluding the year, December brings with it an increased rainfall of 204mm (8.03"), marking the resurgence of the wet season in Cacao. With a high temperature of 28.8°C (83.8°F), the climate begins to cool down slightly, providing respite from the prolonged warmth. Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Throughout the year, there are 277 rainfall days, and 1707mm (67.2") of precipitation is accumulated.
January through May and December, with an average maximum UV index of 6, are months with the lowest UV index in Cacao, French Guiana.
With average high temperatures of 27.7°C (81.9°F) and lows of 23.9°C (75°F), February is the coldest month in Cacao, French Guiana.
The month with the least sunshine is February, with an average of 5.6h of sunshine.
The most humid month is May, with an average relative humidity of 86%.
The month with the most rainfall is May, when the rain falls for 28.9 days and typically aggregates up to 293mm (11.54") of precipitation.
June has the longest days of the year in Cacao, with an average of 12h and 24min of daylight.
June through November, with an average maximum UV index of 7, are months with the highest UV index in Cacao, French Guiana.
September and October, with an average relative humidity of 76%, are the least humid months in Cacao, French Guiana.
September is the month with the least rainfall. Rain falls for 12.2 days and accumulates 23mm (0.91") of precipitation.
September has the most sunshine of the year in Cacao, French Guiana, with an average of 9.2h of sunshine.
Cacao's warmest month, October, generally records average temperatures ranging from a high of 31.6°C (88.9°F) to a low of 24.8°C (76.6°F).
December has the shortest days of the year in Cacao, French Guiana, with an average of 11h and 54min of daylight.
Cacao, French Guiana, does not observe Daylight Saving Time (DST). -03 timezone is used throughout the entire year.
Average temperature
Cacao, French Guiana
The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).
The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).
Average pressure
Cacao, French Guiana
- Average pressure in January:
1011.9mbar - Average pressure in February:
1011.7mbar - Average pressure in March:
1011.9mbar - Average pressure in April:
1011.9mbar - Average pressure in May:
1012.3mbar - Average pressure in June:
1013.1mbar
- Average pressure in July:
1013.2mbar - Average pressure in August:
1012.7mbar - Average pressure in September:
1012mbar - Average pressure in October:
1010.6mbar - Average pressure in November:
1009.8mbar - Average pressure in December:
1010.8mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed
Cacao, French Guiana
- Average wind speed in January:
12.2km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
12.7km/h - Average wind speed in April:
11.7km/h - Average wind speed in May:
10.5km/h - Average wind speed in June:
8.5km/h
- Average wind speed in July:
8.3km/h - Average wind speed in August:
10km/h - Average wind speed in September:
11.1km/h - Average wind speed in October:
11.1km/h - Average wind speed in November:
11.1km/h - Average wind speed in December:
11.7km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).
Average humidity
Cacao, French Guiana
The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall
Cacao, French Guiana
- Average rainfall in January:
154mm - Average rainfall in February:
163mm - Average rainfall in March:
128mm - Average rainfall in April:
208mm - Average rainfall in May:
293mm - Average rainfall in June:
234mm
The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days
Cacao, French Guiana
- Average rainfall days in January:
28 days - Average rainfall days in February:
26.3 days - Average rainfall days in March:
27.2 days - Average rainfall days in April:
27.2 days - Average rainfall days in May:
28.9 days - Average rainfall days in June:
28.2 days
- Average rainfall days in July:
26.6 days - Average rainfall days in August:
19.2 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
16.4 days - Average rainfall days in December:
25.2 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).
Average daylight / Average sunshine
Cacao, French Guiana
- Average daylight in January:
11h and 54min - Average daylight in February:
12h and 0min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 12min - Average daylight in May:
12h and 18min - Average daylight in June:
12h and 24min
- Average daylight in July:
12h and 24min - Average daylight in August:
12h and 18min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 54min - Average daylight in December:
11h and 54min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
5h and 36min - Average sunshine in March:
6h and 0min - Average sunshine in April:
6h and 12min - Average sunshine in May:
6h and 54min - Average sunshine in June:
7h and 30min
- Average sunshine in July:
8h and 18min - Average sunshine in August:
8h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
9h and 6min - Average sunshine in November:
8h and 42min - Average sunshine in December:
7h and 18min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days
Cacao, French Guiana
- Average sunshine days in January:
1.8 days - Average sunshine days in February:
1.3 days - Average sunshine days in March:
2.3 days - Average sunshine days in April:
1.5 days - Average sunshine days in May:
1.1 days - Average sunshine days in June:
0.9 days
- Average sunshine days in July:
2.3 days - Average sunshine days in August:
6.8 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
11.2 days - Average sunshine days in December:
4.1 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).
Average UV index
Cacao, French Guiana
The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).
Average cloud cover
Cacao, French Guiana
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility
Cacao, French Guiana
The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).
