Climate and monthly weather forecastSan Luis, Cuba

The climate of San Luis

San Luis, embedded in Cuba, exhibits a Tropical wet and dry or savanna climate, identified by the Köppen climate classification as "Aw". With its coordinates deeply rooted in the tropical region, San Luis experiences significant rainfall for the larger part of the year and relatively high temperatures throughout.

Observing the yearly weather cycle, a clear pattern emerges. Notably, the temperatures vary negligibly across the twelve months with the highest average temperatures being 31.8°C (89.2°F) in July and August, and the lowest average at 19.3°C (66.7°F) in January and February. The humidity visibility holds steady throughout the year while daylight duration increases from January's 11.1 hours to a peak of 13.3 hours in June, then gradually decreasing again towards December's 10.9 hours.

Interestingly, there is a striking correlation between rainfall and daylight hours. As daylight hours increase starting in January, so does the rainfall, reaching a peak in September with 125mm (4.92"), then dwindling back down as daylight hours decrease towards December. Similarly, cloud cover, although varying throughout the year, follows the same pattern with a peak in October and November at 31%. The UV index stays within the 6 to 7 range with a constant moderate to high risk of harm from unprotected sun exposure.

The best time to visit San Luis

The ideal time for visiting San Luis depends on the preferred weather conditions. In terms of temperature and sunshine duration, the period between May and September presents itself as a prime choice with temperatures averaging from 29.7°C (85.5°F) to 31.8°C (89.2°F) and average sunshine hours ranging between 10.8 hours to 11.4 hours daily. It's essential to keep in mind that this period coincides with increased rainfall, with June through September being the rainiest months.

For travelers whose priority is the least amount of rainfall, then the months of January and February are the most suitable for a visit with rainfall at its annual low of 20mm (0.79") to 23mm (0.91").

The worst time to visit San Luis

The period from May through October experiences the highest rainfall, with rain being a near-daily occurrence, and reaching its peak in September at 125mm (4.92"). This period also presents the highest humidity, which might make outdoor activities less enjoyable for some visitors. However, it's worth mentioning that these are also the months when sunshine duration is longest, making it the best period for sun-lovers albeit with intermittent showers.

Spring weather in San Luis

Emerging from the lower rainfall period in winter, the spring months of March, April, and May in San Luis begin to see increased rainfall, humidity, cloud cover and a decrease in wind speed. Temperatures during this period remain relatively high, with lowest averages from 20.8°C (69.4°F) to 22.4°C (72.3°F) and highest averages from 29°C (84.2°F) to 30°C (86°F).

Summer weather in San Luis

During the months of June, July, and August, San Luis sees the longest sunshine duration, but also the highest rainfall figures across the year, reaching up to 133mm (5.24") in June. The relative humidity peaks during this period, and there is less wind compared to other seasons. One also observes the highest average temperatures of up to 31.8°C (89.2°F) during this timeframe.

Autumn weather in San Luis

In Autumn, though the temperature remains relatively high, variations do occur. From September to November, the highest average temperature shifts from 31.2°C (88.2°F) down to 28.8°C (83.8°F) while the lowest average temperatures range from 22.6°C (72.7°F) to 21.1°C (70°F). During this period, rainfall is significant with October experiencing the most cloud cover at 31%.

Winter weather in San Luis

Winter months from December through February offer a reprieve from the heavy rains. Rainfall decreases considerably during this period, dropping to 20mm (0.79") in February, the lowest in the annual cycle. The average highest temperature during winter remains reasonably warm, fluctuating between 27.8°C (82°F) to 28.3°C (82.9°F), and the lowest average sits at 19.3°C (66.7°F).

Weather in January

January in San Luis, Cuba presents the city’s residents with an evident increase in daylight hours from the previous month, lasting for 11.1 hours daily on average. Largely clear skies complement this increase, with mere 27% cloud coverage. Weather in January »

Weather in February

February boasts a slight increase in daylight hours and a notable 11.3% decrease in rainfall days compared to January. Due to this, San Luis enjoys ample sunshine, lasting 8.3 hours daily. Slightly less humid than January, the city sees a relative humidity level averaging 77%. Weather in February »

Weather in March

The arrival of March marks another increase in daylight hours and a slight dip in cloud coverage relative to the preceding month in San Luis. Climatic tenor starts to pronounce itself, with rainfall intensifying to an average of 34mm (1.34") across 14.8 days. Weather in March »

Weather in April

April witnesses a substantial incline in rainfall, rising to 64mm (2.52") over 22 days, a clear shift from the drier conditions of March. Nonetheless, the daytime extends further and sunshine comes in plenty with an average of 11 hours daily. Weather in April »

Weather in May

May in San Luis brings forth pronounced warmth with daytime temperature peaks soaring to 30°C (86°F). The shift from the predominantly cooler period is well corroborated with this month's 13.1 daylight hours. Simultaneously, rainfall becomes markedly pronounced, peaking at 133mm (5.24") for the year, with wet conditions occurring over 24.9 days. Weather in May »

Weather in June

June sustains the dynamic weather trend of May with minimal changes in temperature, rainfall, and humidity levels. Noticeable, however, is the dip in rainfall to 81mm (3.19"), a 39% decrease from May's peak. On the contrary, daylight hours reach their zenith at 13.3 hours, providing ample sunshine. Weather in June »

Weather in July

July, just like its predecessor, continues with high temperature readings, reaching up to 31.8°C (89.2°F). The conditions seem to be stabilizing, with indicators such as humidity, daylight hours, and pressure reflecting marginal differences from June. Weather in July »

Weather in August

August in San Luis retains the climatic consistency established in July, with temperatures, rainfall, and wind conditions remaining nearly unchanged. The city receives the highest temperatures of the year, peaking at 31.8°C (89.2°F), marking a steady state in the weather pattern. Weather in August »

Weather in September

September brings about a slight cooling effect to the otherwise warm city of San Luis, with temperatures peaking at a lesser 31.2°C (88.2°F). Cloud coverage and humidity levels are slightly elevated relative to the prior month, signifying the onset of cooling trends. Weather in September »

Weather in October

Exhibiting further cooling, October sees temperatures drop to a high of 29.9°C (85.8°F) and a low of 22.2°C (72°F). This cooling is matched with a dip in daylight hours to 11.7, a clear departure from the longer daylight hours just a few months prior. Weather in October »

Weather in November

As temperatures continue to dip in November, chilly mornings and warm afternoons define daily weather in San Luis. Rainfall takes a considerable drop down to 63mm (2.48") over 18.8 days, trailing the preceding months' peaks. Concurrently, hours of sunshine show improvement from October with a daily average of 6.8 hours. Weather in November »

Weather in December

December ushers in the coolest average temperatures of the year in San Luis, between 20.2°C (68.4°F) to 28.3°C (82.9°F). Rainfall reduces further compared to November, reaching a low of 34mm (1.34") over 14.2 days. Cloud coverage hovers at 27%, slightly lower than the annual average. Weather in December »