Climate and monthly weather forecastSaul, French Guiana

The climate of Saul

Positioned in the French Guiana, Saul exhibits typical climatic characteristics of the Af or tropical rainforest Köppen climate classification. This classification renders a stable climate all through the year, with a predominance of rainfall, dense humidity and high temperatures.

This region's annual cycle is marked by substantial rainfall, and the precipitation does not drop below 60mm (2.36") in any given month. The year’s lowest rainfall of 21mm (0.83") is seen in October, while the highest occurs in May, reaching 192mm (7.56"). The number of rainy days typically varies from approximately 10.4 in October to 26.8 in March, giving evidence of high precipitation regularity.

Consistent high temperatures further define Saul's climate, with the lowest being 20.5°C (68.9°F) in August and September, and the highest peaking at 34.9°C (94.8°F) in October. The proximity in weather readings from month to month testifies to the region's warm and equable temperature range.

In line with the high humidity, cloud cover remains predominantly high, hovering from 71% to 90% over the course of the year. There are, however, marked changes in the extent of daily sunshine hours; with the lengthiest daily sunlight exposure of 8.8 hours observed in September and October, reducing to the shortest span of 4.9 hours in January.

The best time to visit Saul

While the ever-present rainfall affords an evergreen landscape year-round, the period from August to October could be considered the most favourable for a visit to Saul. During these months, Saul experiences the driest conditions with rainfall levels ranging from 21mm (0.83") in October to 76mm (2.99") in August. This period also coincides with the highest sunshine hours, stretching from 8.6 in August to 8.8 in both September and October. Simultaneously, the UV index reaches a high of 7 (high category), suggesting a need for proper sun safety measures.

The worst time to visit Saul

May is arguably the most challenging month for visitors given it holds the record for the highest rainfall of 192mm (7.56"). The number of rainy days scale to a considerable 25.9 in May, while sunshine hours contract to a relative low of 5.1. This month also experiences one of the highest temperatures of the year, scaling up to 29.8°C (85.6°F). Therefore, those who are not accustomed to high rainfall combined with warm temperatures might find this period taxing.

Spring weather in Saul

Spring, spanning from March to May, ushers in warm conditions and considerable rainfall in Saul. During these months, rainfall ranges from 82mm (3.23") in March to 192mm (7.56") in May, while the number of rainy days sees a slight uptick, particularly in May with 25.9 days. Discounts notwithstanding, daylight lasts around 12.1 to 12.3 hours, while sunshine hours sit between a high of 5.1 hours in May and a low of 4.7 hours in March.

Summer weather in Saul

Saul’s tropical rainforest climate ensures a warm and humid summer from June to August, characterized by less rainfall and more sunshine. Precipitation falls from 123mm (4.84") in June to a comparatively lower 76mm (2.99") in August, while daylight remains consistent at around 12.3 hours. Consequently, these months see the highest amount of sunshine, increasing from 6.6 hours in June to 8.6 hours in August.

Autumn weather in Saul

Autumn in Saul, from September to November, witnesses a decline in rainfall, peaking at 43mm (1.69") in November from a low of 21mm (0.83") in October. Despite decreased precipitation, this period experiences some of the warmest temperatures of the year with highs fluttering around 30.8°C (87.4°F) to 34°C (93.2°F). Sunshine hours remain at their annual high of 8.8 throughout September and October, slightly diminishing to 8.2 in November.

Winter weather in Saul

The winter months of December to February in Saul are characterized by consistent rainfall, with quantities fluctuating from 86mm (3.39") in January to 112mm (4.41") in December. Cloud cover increases along with relative humidity, yet sunshine hours slightly dip to around 5.6 in December and then to 4 in February. Despite the prevalent wet conditions, temperatures remain steady, with daily highs lingering between 29.3°C (84.7°F) to 30.1°C (86.2°F) and lows from 20.8°C (69.4°F) to 21.2°C (70.2°F). The winter winds hover from 5.1km/h (3.2mph) in December to 5.3km/h (3.3mph) in February, preserving a gentle breeze throughout the season.

Weather in January

January signals the onset of the rainy season in Saul, French Guiana. Despite this downpour, temperatures remain steadily high hovering near 30°C (86°F). The weather pattern this month is generally characterized by significant rainfall and high humidity, with rainfall reaching up to 86mm (3.39") and a relative humidity of 87%. Weather in January »

Weather in February

February continues on the same weather path as January, though with rainfall slightly decreasing. However, it should be noted that February experiences almost the highest humidity in Saul, marked at 88%. The sun seems to be a bit shyer this month, providing less sunshine hours compared to January. Weather in February »

Weather in March

The weather in March exhibits slightly less rain than February. This reduction aligns with changing weather patterns across Saul, seeing the month lean towards a trend of progressively warming temperatures. Recording a relative humidity of 86%, March experiences a mild reduction in moisture levels compared to the preceding month. Weather in March »

Weather in April

April in Saul sees an unusual spike in rainfall, measuring up to 129mm (5.08"), which denotes one of the highest precipitation levels in the year. Meanwhile, average low and high temperatures persist around 20°C (68°F) and 30°C (86°F), respectively. Weather in April »

Weather in May

Conditions continue to remain similar in May, the highest rainfall month of the year with a whopping 192mm (7.56") precipitation. Travelers looking forward to sunny landscapes must anticipate an overall reduction in visibility due to the high cloud cover. Weather in May »

Weather in June

June marks the start of a change in Saul's weather cycle, with a notable decrease in the monthly rainfall and relative humidity falling to 88%. It's the perfect time for sun-seekers with sunshine hours soaring to 6.6 hours per day. Weather in June »

Weather in July

By July, Saul experiences a significant shift in weather. As rainfall plunges to 97mm (3.82"), temperatures grow warmer hovering around 31.1°C (88°F). Saul's weather characterizes this month with a perfectly balanced mix of sun and rain. Weather in July »

Weather in August

August shifts the spectrum even further towards dry weather, setting itself up as the driest month of the year with only 36mm (1.42") of rain. Higher temperatures averaging at 32.8°C (91°F) dominate most days. Saul's weather in August sees an upsurge in sunshine duration, rounding up to 8.6 hours per day. Weather in August »

Weather in September

Entering September, residents of Saul continue to enjoy less rainfall, with a drop to just 36mm (1.42"), the lowest mark of the year. Temperatures only slightly decrease from previous months, but it hardly affects the overall warmth of September. Weather in September »

Weather in October

October expands upon September's trend but curtails the length of daylight hours. More sunlit days, complemented by longer sunshine hours of 8.8 hours per day, are the norm this month. Light seasonal winds blow across Saul, keeping the weather pleasant and balmy. Weather in October »

Weather in November

With incoming rains, November anticipates a swing back to the weather conditions observed in the initial months. Almost doubling last month’s rainfall data, the city witnesses showers totaling up to 43mm (1.69"). The return of rains also brings about a decrease in sunshine duration, curtailing it down to 8.2 hours. Weather in November »

Weather in December

Closing out the year, December firmly realigns with the weather mood set in the first quarter. Rainfall increases to 112mm (4.41"), and relative humidity reaches 85%. The number of sunlit hours reduces, matching the level seen at the year's start. Weather in December »