Climate and monthly weather forecastMariel, Cuba
Climate and monthly weather forecast
The climate of Mariel
Mariel, situated in Cuba, is characterized by a Tropical wet and dry or savanna climate, also known as the Aw according to the Köppen climate classification. The town experiences a tropical monsoon climate, marked by distinct wet and dry seasons. Sunlight and humidity dominate the year-round weather, yielding a lush green cover for most of the year.The weather parameters exhibit significant variation throughout the year. High temperatures fluctuate between 24.9°C (76.8°F) in January and 31.6°C (88.9°F) in August, creating a warm to hot atmosphere throughout the year. Nightfalls bring cooler temperatures, ranging from 19.6°C (67.3°F) in January to 25.9°C (78.6°F) in August.
Rainfall in Mariel varies significantly over the year, from a minimum of 8mm (0.31") in March to a maximum of 73mm (2.87") in August. The town experiences rainfall days ranging from 5.8 days in March to 18.3 days in August, with significant precipitation mostly occurring in the summer months. Notably, the months from March through July witness increased sunlight, averaging between 9h and 11h a day.
The best time to visit Mariel
The ideal time to visit Mariel is during the spring months from March to May. This period features mild nights, warm days, and lower rainfall. March records the least rainfall of the year, averaging at just 8mm (0.31") over 5.8 days. This results in more dry and sunny days, seeing up to 9h of sunlight daily. Daylight lasts around 12h to 13.2h, offering ample opportunities for outdoor explorations.The worst time to visit Mariel
Mariel experiences its most challenging climate conditions starting from June to September. These months coincide with the town's rainy season. The height of rainfall occurs in August, with an average of 73mm (2.87") over 18.3 days. Increased humidity levels, ranging from 74% to 78%, alongside peak temperatures reaching up to 31.6°C (88.9°F), can make these months uncomfortable for some visitors. However, these periods also correspond with high sea temperatures that hit a maximum of 30.2°C (86.4°F) in August, potentially suitable for those interested in water-related activities.Spring weather in Mariel
Spring in Mariel, spanning from March to May, is a period of mild to warm conditions. Despite minimum rainfall levels for the year in March at 8mm (0.31"), rainfall increases gradually over the period to reach 58mm (2.28") in May. Relative humidity levels stay steady between 71% and 74%. Daily sunshine hours range from 9.5h in April to 11h in May. Average high temperatures increased from 26.9°C (80.4°F) in March to 29.9°C (85.8°F) in May, coupled with rising low temperatures from 20.7°C (69.3°F) to 24.2°C (75.6°F), keeping the season warm.Summer weather in Mariel
Summer, from June to August, is characteristically hot and humid in Mariel. Daily high temperatures steadily increase from 30.5°C (86.9°F) in June to a yearly peak of 31.6°C (88.9°F) in August. Nights offer slightly cooler conditions, with lows varying from 25.2°C (77.4°F) to 25.9°C (78.6°F). Relative humidity also sees a gradual increase to reach a peak of 78% in June. Rainfall becomes more frequent with an average of 65mm (2.56") in June, rising to 73mm (2.87") in August. It is also the period with the longest daylight hours in the year reaching up to 13.5h in June.Autumn weather in Mariel
Fall in Mariel, occurring between September and November, brings a relief from the harsh summer conditions. High temperatures decrease from 30.6°C (87.1°F) in September to 27.3°C (81.1°F) in November, while low temperatures drop from 25.7°C (78.3°F) to 22.1°C (71.8°F) in the same period. Rainfall decreases from 63mm (2.48") in September to 13mm (0.51") in November, along with a reducction in rainfall days. Autumn days are shorter, featuring daylight hours that range between 12.3h in September to 11h in November.Winter weather in Mariel
Winter months in Mariel, from December to February, are characterized by mild to cool conditions. High temperatures range from 24.9°C (76.8°F) in January to 26.2°C (79.2°F) in February, while low temperatures stay between 19.6°C (67.3°F) and 20°C (68°F). Rainfall is minimal with December and January recording only 18mm (0.71") and 22mm (0.87") respectively, spread over 6.8 and 9.6 days. Sunshine in this period reduces to a low of 6.7h in December and 8h in January, and daylight lasts from 10.7h to 10.9h. Despite being the coolest season, Mariel's winter is comparatively mild with relatively pleasant conditions.Weather in January
January brings a symphony of a subtropical atmosphere to Mariel, Cuba. The month registers respectable amounts of sunshine and daylight, with an average UV index recorded at 6. January's weather highlights the mild nip in the air, with sea temperatures lingering around 24.8°C (76.6°F). Weather in January »Weather in February
Moving on to February, the mild climate of Mariel gives way to subtly warmer days. The month expresses headway into slightly higher temperatures, with the characteristic subtropical humidity remaining relatively stable. Unveiling 24 sunny days in February, the city accompanies this relief with an average sea temperature of 25°C (77°F). Weather in February »Weather in March
March carries the baton even further in Mariel's annual weather relay, accentuating an early onset of summer. The classical maritime town records a relatively drier weather pattern with a noticeable decrease in rainfall to a mere 8mm (0.31"). Weather in March »Weather in April
As the calendar turns to April, Mariel's weather system rings in a more pronounced summer feel. The city puts up quite a show with engagingly warm temperatures and sunny skies promising long beach days. Pressure drops subtly to an average of 1015.3mb, indicating more unstable conditions. Weather in April »Weather in May
May marks a significant change in Mariel's weather, transitioning into the annual wet season. The tropical town's humidity levels rise, and the skies express a stronger tendency towards cloud cover. A considerable leap in rainfall with a total downpour of 58mm (2.28") ties in with the rise in sea temperatures, now hovering around 27.7°C (81.9°F). Weather in May »Weather in June
Mariel greets June with heightened weather activity, displaying the city's tropical savannah climate in all its glory. The town faces an increased rainfall with an average of 65mm (2.56") spread across 17.8 rainy days. Interestingly, the city gets the longest daylight hours and sea temperatures peaking at a balmy 28.8°C (83.8°F) in this month. Weather in June »Weather in July
July in Mariel defines the heart of the summertime, establishing firmly the rhythmic pattern of the wet season. The city encounters the highest temperature peeking at 31.4°C (88.5°F). Pervasive sunlight illuminates the town, with shorelines bathed in warm water temperatures reaching 29.7°C (85.5°F). Weather in July »Weather in August
August continues to maintain the height of the warm season in Mariel, where high temperatures and rainfall become commonplace. A slight uptick in both temperature and humidity layers the town in a warm, tropical blanket. While the wind gusts slightly pick up pace to 15.4km/h (9.6mph), sea temperatures reach their annual maximum at 30.2°C (86.4°F). Weather in August »Weather in September
September presents a noticeable transition into a less aggressive weather pattern as Mariel inches closer to the end of the wet season. Although a strong likelihood of rain persists, the town observes a marginal drop in both temperatures and humidity. Weather in September »Weather in October
October indicates the arrival of autumn in Mariel, embracing a calmer sea and more stable weather conditions. While the city pullbacks from the rainiest phase, there is a significant drop in sea temperatures to 28.6°C (83.5°F). Weather in October »Weather in November
November pays tribute to the gradual cooling off period in Mariel, prepping up the town for the forthcoming festive season. Considerably lower rainfall registering at 13mm (0.51") promotes a drier weather pattern. With improved visibility of 10km (6.2mi) and a slower rate of cloud formation, Mariel offers an ideal backdrop for November sightseeing. Weather in November »Weather in December
December rings in the end-of-year celebrations with typical dry winter weather in Mariel. The month experiences the lowest minimum temperature of the year, hovering around 20.9°C (69.6°F). With sea temperatures resting at a cooler 25.8°C (78.4°F), the pleasant veil of soft winds encapsulating the town offers the perfect Christmas ambience. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mariel, Cuba
The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (24.9°C).
The month with the highest average low temperature is August (25.9°C).
The coldest month (with the lowest average low temperature) is January (19.6°C).
Average pressure
Mariel, Cuba
- Average pressure in January:
1018.3mbar - Average pressure in February:
1017.7mbar - Average pressure in March:
1017.4mbar - Average pressure in April:
1015.3mbar - Average pressure in May:
1014.7mbar - Average pressure in June:
1014.8mbar
- Average pressure in July:
1015.9mbar - Average pressure in August:
1014.5mbar - Average pressure in September:
1013.2mbar - Average pressure in October:
1013.1mbar - Average pressure in November:
1015.6mbar - Average pressure in December:
1017.2mbar
The month with the highest atmospheric pressure is January (1018.3mbar).
The month with the lowest atmospheric pressure is October (1013.1mbar).
Average wind speed
Mariel, Cuba
- Average wind speed in January:
14.2km/h - Average wind speed in February:
13.1km/h - Average wind speed in March:
13.9km/h - Average wind speed in April:
12.4km/h - Average wind speed in May:
12km/h - Average wind speed in June:
10.7km/h
- Average wind speed in July:
9.4km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
10.3km/h - Average wind speed in October:
12.9km/h - Average wind speed in November:
14.2km/h - Average wind speed in December:
13.3km/h
The windiest months (with the highest average wind speed) are January and November (14.2km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity
Mariel, Cuba
The months with the highest relative humidity are October and December (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall
Mariel, Cuba
The wettest month (with the highest rainfall) is August (73mm).
The driest month (with the least rainfall) is March (8mm).
Average rainfall days
Mariel, Cuba
- Average rainfall days in January:
9.6 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
5.8 days - Average rainfall days in April:
7.8 days - Average rainfall days in May:
14.4 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.3 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
17.5 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
6.8 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is March (5.8 days).
Average sea temperature
Mariel, Cuba
The best month for swimming (with the highest average sea temperature) is August (30.2°C).
The coldest month (with the lowest average sea temperature) is January (24.8°C).
Average daylight / Average sunshine
Mariel, Cuba
- Average daylight in January:
10h and 54min - Average daylight in February:
11h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 18min - Average daylight in June:
13h and 30min
- Average daylight in July:
13h and 24min - Average daylight in August:
12h and 54min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 0min - Average daylight in December:
10h and 48min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in January:
8h and 0min - Average sunshine in February:
8h and 54min - Average sunshine in March:
9h and 0min - Average sunshine in April:
9h and 30min - Average sunshine in May:
11h and 0min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
9h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
8h and 6min - Average sunshine in November:
6h and 54min - Average sunshine in December:
6h and 42min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Mariel, Cuba
- Average sunshine days in January:
19 days - Average sunshine days in February:
20 days - Average sunshine days in March:
24.7 days - Average sunshine days in April:
21.2 days - Average sunshine days in May:
14.9 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
10.2 days - Average sunshine days in September:
9.8 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
22.8 days
The month with the most sunshine days is March (24.7 days).
The month with the least sunshine days is September (9.8 days).
Average UV index
Mariel, Cuba
The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover
Mariel, Cuba
The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is April (Cloud cover 19).
Average visibility
Mariel, Cuba
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





