Climate and monthly weather forecastWempi, French Guiana
Climate and monthly weather forecast
The climate of Wempi
Due to its geographical position in the tropics, Wempi, French Guiana exhibits a distinctive tropical rainforest climate, commonly referred to as 'Af' under the Köppen climate classification. This climate is predominantly marked by high humidity, significant rainfall, and consistent temperatures throughout the year. A characteristic feature of this climate, it perceives an average temperature oscillating between 20.5°C (68.9°F) and 34.9°C (94.8°F), displaying minimal seasonal variations.Reflecting on the precipitational aspects, with a monthly average rainfall of 76mm (2.99") to 192mm (7.56"), Wempi accentuates its tropical rainforest climate. A conspicuously high rainfall is observed during May with 192mm (7.56"). This gradually reduces to 36mm (1.42") in September, marking the driest month. Correspondingly, the number of rainfall days per month vary from 10.4 days in October to 26.8 days in January and March, upholding the climate's homogeneity.
From a holistic viewpoint, Wempi exhibits fairly consistent weather conditions in terms of visibility and sunlight exposure, determined by the daylight hours and sunshine duration. The daylight hours fluctuate modestly throughout the year, from 11.9 hours in December to 12.3 hours in May through July. Furthermore, the average sunlight duration ranges from 4 hours in February to 8.8 hours in September and October, catering for the sunny ambiance.
The best time to visit Wempi
The ideal time to visit Wempi lies in the transition from September to October. This period is preferable due to reduced rainfall from 36mm (1.42") to 21mm (0.83"), limiting the number of rainy days from 14.3 to 10.4 days. Additionally, the relative humidity is typically lower at 74% to 72%, enhancing the comfort levels for outdoor activities. Besides, the temperature continues to remain stable between 20.5°C (68.9°F) to 34.9°C (94.8°F) during these months, promulgating pleasant ambient conditions. The higher sunshine duration of around 8.8 hours provides ample opportunities for exploring the tropical landscapes of Wempi, French Guiana.The worst time to visit Wempi
Although the climate remains relatively constant, the period from April to June can be considered less desirable for travelers. The prime reason being its intense rainfall reaching up to 192mm (7.56") in May along with relative humidity soaring as high as 90%. In addition, the number of rainy days oscillates from 26.3 days in April to 24.5 days in June, which can impact travel plans and restrict movement.Spring weather in Wempi
Springtime in Wempi experiences a gradual increase in temperatures, with lows ranging from 21°C (69.8°F) in March to 21.9°C (71.4°F) in May and highs from 30.1°C (86.2°F) to 29.8°C (85.6°F) in the same period. The rainfall also sees a significant increase from 82mm (3.23") in March to a peak of 192mm (7.56") in May. Hence, Spring marks the onset of the heavier monsoons in Wempi.Summer weather in Wempi
Summers in Wempi, represented by June to August, showcases a slight decrease in average rainfall from 123mm (4.84") to 76mm (2.99"), however maintaining a high number of rainy days from 24.5 to 18.8. Despite this, summer months enjoy increased sunshine of approximately 6.6 to 8.6 hours per day while the temperatures hover between 20.8°C (69.4°F) to 32.8°C (91°F).Autumn weather in Wempi
During autumn, marked by September to November, Wempi sees its driest months with rainfall decreasing abruptly from 36mm (1.42") in September to 43mm (1.69") in November. Coupled with this, the number of rainfall days also decrease to 10.4 in October but slightly rise to 15.1 days in November. The temperature during these months remains stable between 20.5°C (68.9°F) to 34°C (93.2°F).Winter weather in Wempi
Winter in Wempi, extending from December to February, consists of lower temperatures ranging from 20.8°C (69.4°F) to 29.7°C (85.5°F) in December and 21.2°C (70.2°F) to 29.3°C (84.7°F) in February. It witnesses a consistent increase in rainfall from 112mm (4.41") to 81mm (3.19") and number of rainy days from 26.2 to 25.8. The winter months, while not severe, represent a milder tropical winter with slightly lower temperatures and increased rainfall.Weather in January
The weather in Wempi begins to heat up in January, transitioning from the end of the year temperatures. Rain showers are frequent, with rainfall reaching up to 86mm (3.39") over an average of 26.8 days. This month marks the beginning of the region's warm and humid phase. Weather in January »Weather in February
February sees slight changes in Wempi's climatic conditions. Point of interest is a minimal drop in temperature, while humidity rises further, giving the city an additional wet, warm touch. Still, the conditions remain favorable for outdoor activities due to the increased sunshine hours. Weather in February »Weather in March
March in Wempi is characterized by increasing temperatures, although this rise is only marginal compared to February. The wet and warm weather persist with humidity levels slightly declining. However, Wempi sees less rainfall this month compared to previous ones, making it relatively drier. Weather in March »Weather in April
The climatic changes in April in Wempi are more visible. Notably, rainfall increases drastically to 129mm (5.08") with the city experiencing these showers over an average of 26.3 days. The weather remains warm with the temperatures continuing to follow an upward trend. Weather in April »Weather in May
May is one of the crucial months for Wempi's weather pattern as it records the highest rainfall of the year with up to 192mm (7.56"). This period marks the peak of the rainy season in the city. The city remains warm though, with continuous sunshine between the rainfalls. Weather in May »Weather in June
The month of June signals a reprieve from the constant heavy rainfall as Wempi experiences a decline in precipitation. The weather retains most characteristics from May with slight changes in temperature and humidity. This month can be considered more favorable for outdoor activities as the others from the semester. Weather in June »Weather in July
Summer is in full swing in Wempi in July. The precipitation continues its downward trend from the previous month, totaling 97mm (3.82"). This reduction in rainfall ushers in a much drier period for the city. However, it remains warm and humid. Weather in July »Weather in August
August in Wempi ushers in sunny days and moderately warm temperatures with highs reaching up to 32.8°C (91°F). This period serves as a reprieve from the previous humidity and rainfall levels. The climatic conditions in the city are ideal for relaxation and sightseeing. Weather in August »Weather in September
September highlights a significant shift in Wempi's weather with a rise in daytime temperature reaching a high point of 34.1°C (93.4°F). Rainfall and humidity greatly reduce during this period. As the rainy season fades away, the city begins to dry up. Weather in September »Weather in October
In Wempi, October experiences the highest temperature of the year, reaching an average high of 34.9°C (94.8°F). The temperature is well-balanced by a declination in both rainfall and relative humidity, making it ideal for outdoor adventures. Weather in October »Weather in November
November in Wempi sees a dip in temperatures following its peak in October. The city begins to transition into a somewhat colder season although the temperature remains relatively high. Rainfall begins to pick up, albeit slightly, hinting the onset of the rainy season. Weather in November »Weather in December
December marks the cycle end in Wempi's annual weather pattern. It continues to experience mild temperature drops from the previous months, with daytime temperatures dipping to around 30.8°C (87.4°F). Rainfall rises to a substantial 112mm (4.41") as the city begins to usher in the rainy season once again. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Wempi, French Guiana
The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).
The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).
Average pressure
Wempi, French Guiana
- Average pressure in January:
1011.8mbar - Average pressure in February:
1011.6mbar - Average pressure in March:
1011.7mbar - Average pressure in April:
1011.8mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1013mbar
- Average pressure in July:
1013mbar - Average pressure in August:
1012.4mbar - Average pressure in September:
1011.6mbar - Average pressure in October:
1010.2mbar - Average pressure in November:
1009.4mbar - Average pressure in December:
1010.7mbar
The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed
Wempi, French Guiana
- Average wind speed in January:
5.1km/h - Average wind speed in February:
5.3km/h - Average wind speed in March:
5.3km/h - Average wind speed in April:
4.8km/h - Average wind speed in May:
4.5km/h - Average wind speed in June:
4.3km/h
- Average wind speed in July:
4.2km/h - Average wind speed in August:
4.5km/h - Average wind speed in September:
4.9km/h - Average wind speed in October:
5.2km/h - Average wind speed in November:
5.3km/h - Average wind speed in December:
5.1km/h
The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).
Average humidity
Wempi, French Guiana
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Wempi, French Guiana
- Average rainfall in January:
86mm - Average rainfall in February:
81mm - Average rainfall in March:
82mm - Average rainfall in April:
129mm - Average rainfall in May:
192mm - Average rainfall in June:
123mm
The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days
Wempi, French Guiana
- Average rainfall days in January:
26.8 days - Average rainfall days in February:
25.8 days - Average rainfall days in March:
26.8 days - Average rainfall days in April:
26.3 days - Average rainfall days in May:
25.9 days - Average rainfall days in June:
24.5 days
- Average rainfall days in July:
24.6 days - Average rainfall days in August:
18.8 days - Average rainfall days in September:
14.3 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
26.2 days
The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).
Average daylight / Average sunshine
Wempi, French Guiana
- Average daylight in January:
12h and 0min - 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 18min
- Average daylight in July:
12h and 18min - Average daylight in August:
12h and 12min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 0min - Average daylight in November:
12h and 0min - Average daylight in December:
11h and 54min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in January:
4h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
4h and 42min - Average sunshine in April:
4h and 36min - Average sunshine in May:
5h and 6min - Average sunshine in June:
6h and 36min
- Average sunshine in July:
7h and 30min - Average sunshine in August:
8h and 36min - Average sunshine in September:
8h and 48min - Average sunshine in October:
8h and 48min - Average sunshine in November:
8h and 12min - Average sunshine in December:
5h and 36min
The months with the most sunshine are September and October (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days
Wempi, French Guiana
- Average sunshine days in January:
2.3 days - Average sunshine days in February:
1.8 days - Average sunshine days in March:
2.7 days - Average sunshine days in April:
2.5 days - Average sunshine days in May:
3.4 days - Average sunshine days in June:
3.3 days
- Average sunshine days in July:
4.3 days - Average sunshine days in August:
9.5 days - Average sunshine days in September:
13.3 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
12.5 days - Average sunshine days in December:
3.7 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).
Average UV index
Wempi, French Guiana
The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).
Average cloud cover
Wempi, French Guiana
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).
Average visibility
Wempi, French Guiana
The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).





