The climate of Saint-Louis
Saint-Louis, located in
Reunion, has a climate that aligns precisely with the Köppen climate classification referred to as Cfb, also known as Marine west coast, warm summer. This characterization concisely describes the year-round weather conditions prevalent in Saint-Louis.
The town experiences a relatively stable range of temperatures throughout the year, with the average highs hovering between 21.3°C (70.3°F) in
July to 26.3°C (79.3°F) in
January to
March period. Correspondingly, the average low temperatures shift in a narrow band from 18.8°C (65.8°F) to 24.3°C (75.7°F). Humidity percentages remain consistently high, with monthly averages ranging from 77% to 81%.
Rainfall in Saint-Louis varies throughout the year, with the wettest months being January, with 162mm (6.38") of rain, while the driest month is
September, registering just 10mm (0.39"). The town sees a significant decrease in daylight hours from 13.4h in
December to 10.9h in
June. Sunshine hours follow a similar pattern, dwindling from 10.9h in
October to 6.9h in
May. Cloud cover fluctuates moderately between the lowest 21% in September and peaks at 38% in
February.
The best time to visit Saint-Louis
Analysing the weather data, the best time to visit
Saint-Louis would be between
September and
November. These months offer an amalgamation of comfortable temperatures, with highs ranging from 21.7°C (71.1°F) to 24.3°C (75.7°F) and lows between 19.5°C (67.1°F) to 21.6°C (70.9°F). Furthermore, these months provide the least amount of rainfall, averaging from 10mm (0.39") to 34mm (1.34") alongside reduced cloud cover percentages. The daylight conditions are favourable as well, stretching from 12h to 13.1h, along with sunshine hours increasing from 9.3h to 10.6h.
The worst time to visit Saint-Louis
In contrast, the least appealing period to visit
Saint-Louis is between
January and
March. These months endure the highest temperatures, averaging from 24.3°C (75.7°F) to 26.3°C (79.3°F). Coupled with higher humidity percentages of around 81%, it tends to feel much hotter. The shower intensity also soars, reaching up to 162mm (6.38") in January. Though the daylight hours are longer around this time, ranging from 12.2h to 13.3h, the cloud cover percentage is also at its peak, impeding clear visibility.
Spring weather in Saint-Louis
March,
April, and
May define the spring season in
Saint-Louis. March sustains high temperatures, with average highs and lows clocking in at 26.3°C (79.3°F) and 23.9°C (75°F), respectively. But, a transition occurs from April to May, the temperature barometer skews downwards from 25.3°C (77.5°F) to 23.6°C (74.5°F) for average highs and from 22.8°C (73°F) to 21.2°C (70.2°F) for lows. Rainfall decreases from 119mm (4.69") to 44mm (1.73") throughout the spring season, and the overall humidity drops to 79% by May.
Summer weather in Saint-Louis
Identified by
June,
July, and
August, the summer months in
Saint-Louis present a mildly cool climate with average highs settling between 21.3°C (70.3°F) and 22.3°C (72.1°F). Average low temperatures slide to 18.8°C (65.8°F) in July, the lowest for the year. Rainfall further diminishes during this season, dropping to 16mm (0.63") in July and 11mm (0.43") in August, coupled with relatively low cloud cover around 25%-26%. Humidity also tends to reduce during the summer months, hovering at 77%.
Autumn weather in Saint-Louis
September to
November is autumn in
Saint-Louis, displaying a slight increase in temperatures. Average highs increase from 21.7°C (71.1°F) to 24.3°C (75.7°F), and lows rise from 19.5°C (67.1°F) to 21.6°C (70.9°F). Rainfall totals elevate a bit to 79mm (3.11") by November, but this season still maintains a lower humidity level of 78%-79%. The daylight hours start to increase, peaking at 13.1h in November.
Winter weather in Saint-Louis
December to
February marks the winter season in
Saint-Louis. The average high temperature in December is 25.6°C (78.1°F), which remains constant at 26.3°C (79.3°F) for
January and February. This season is characterized by high humidity of 81% and considerable precipitation, with rainfall shooting up to 162mm (6.38") in January. Despite being crowned as one of the rainiest months, daylight duration remains significant, oscillating between 12.8h to 13.3h.
Weather in January
In
Saint-Louis,
Reunion, the month of
January kicks off with temperatures similar to those of
December. Days tend to be humid with generous cumulative amounts of rainfall reaching up to 162mm (6.38"). The city experiences daylight for an average of 13.3 hours with the majority of the time being sunny.
Weather in January »Weather in February
Weather in March
In
Saint-Louis,
Reunion,
March promises a slight change in weather compared to
February. The month experiences a slight increase in rainfall, up from 110mm (4.33") to 119mm (4.69"), indicating that March ushers in more wet days. The high temperatures prevail, albeit, with a slight dip, making the days warm and the nights a bit cooler than the preceding month.
Weather in March »
Weather in April
The climate in
Saint-Louis,
Reunion, undergoes further change as
April takes over from
March. Significantly, there is a considerable reduction in rainfall, down to 84mm (3.31"), and this is a key characteristic of April's weather.
Weather in April »Weather in May
Despite the year progressing,
May in
Saint-Louis,
Reunion, carries forward the lower rainfall pattern from
April, reducing further to 44mm (1.73"). The days start to get shorter with dimming sunlight hours, indicating the gradual transition towards the winter season.
Weather in May »Weather in June
As per
Saint-Louis,
Reunion's weather data,
June continues to follow
May's descending temperature trend with weather turning relatively cooler. When it comes to rainfall, with only 21mm (0.83"), June exhibits the commencement of a notably drier season.
Weather in June »
Weather in July
Saint-Louis,
Reunion experiences the coldest month of the year in
July as high temperatures drop to 21.3°C (70.3°F). The rainfall reduces to 16mm (0.63"), which implies that July is the driest month of the year. Despite being the peak winter month, the region does not experience extreme cold, meaning daytime conditions remain suitable for outdoor exploration.
Weather in July » Weather in August
According to
Saint-Louis,
Reunion's climate data,
August showcases a minor upward shift in both rainfall and temperature, promising a slight transition from the cold climax of
July. It is however still winter, with cooler conditions characteristic of most days and nights.
Weather in August »Weather in September
Saint-Louis,
Reunion greets
September with a warmer embrace as compared to previous chill months. However, a key highlight of the month's weather is its low rainfall, only slightly above
August's, at 10mm (0.39"). The humble rise in temperature gradually marks the onset of summer, replacing the winter blues with warmer hues.
Weather in September »
Weather in October
Entering the month of
October,
Saint-Louis,
Reunion witnesses a considerable rise in temperature, setting the stage for the incoming summer. October differentiates itself with a threefold increase in rainfall from the previous month, clocking in at 34mm (1.34").
Weather in October »Weather in November
The weather in
November in
Saint-Louis,
Reunion, presents an anticipation of brighter and warmer days as it is on the brink of the hottest time of the year. Another considerable elevation in rainfall surfaces in November, reaching 79mm (3.11"), indicating the start of the rainy season.
Weather in November »Weather in December
[Resources]