Climate and monthly weather forecastSan Marcos, Nicaragua

The climate of San Marcos

San Marcos, Nicaragua falls under the Köppen climate classification Aw, better known as the tropical wet and dry or savanna biome. The geographical positioning of the city near the equator makes it prone to tropical weather conditions, characterized by not only warm temperatures but also significant rainfall for half of the year.

A quick scrutiny of climatological parameters reveals that the city experiences a consistent pattern throughout the year when it comes to temperature. The highest average temperatures fluctuate from 30.9°C (87.6°F) to 33.8°C (92.8°F) and are usually achieved in the first half of the year. The lowest average annual temperatures range from 22.1°C (71.8°F) to 25.2°C (77.4°F). This continuity in temperature is accompanied by a humidity fluctuation from 60% to 85%.

In terms of rainfall, San Marcos sees peak precipitation between May and October with monthly averages up to 401mm (15.79"). These periods of substantial rainfall are contrasted by relatively drier months from January to April and November to December during which the city witnesses much lower monthly averages ranging from 3mm (0.12") to 41mm (1.61").

While discussing sunlight and cloud cover, it appears that the amount of daylight ranges from 11.4 to 12.8 hours while the sunshine hours vary from 7.2 to 9.7 hours. Interestingly, the percentage of cloud cover tends to be less during the dry period of the year and gradually increases with the onset of the rainy season.

The best time to visit San Marcos

Considering the climate data for San Marcos, visitors may find the period from December through April particularly attractive. The city registers its lowest rainfall during these months, plus temperatures remain consistently in the high 29°C (84.2°F) to low 32°C (89.6°F), making the environment suitable for various outdoor activities. In addition, the city experiences longer hours of sunshine, thus providing a generous amount of daylight.

The worst time to visit San Marcos

The period from May to October generally poses challenges for visits to San Marcos. Heavy rainfall records between 148mm (5.83") to 401mm (15.79") monthly, accompanied by increased cloud cover makes outdoor activities quite difficult. Furthermore, the humidity level also increases during these months which might lead to discomfort for those not accustomed to such conditions.

Spring weather in San Marcos

Spring (March through May) in San Marcos features increasing temperature values from 33.2°C (91.8°F) to a high of 33.8°C (92.8°F). The lowest average temperatures also rise during this period, starting at 22.9°C (73.2°F) in March and moving up to 25.2°C (77.4°F) in May. It is also the season when the city starts to register significantly higher rainfall, particularly in May, with an astonishing increase from 4mm (0.16") to 265mm (10.43").

Summer weather in San Marcos

Confirming its tropical climate, summer in San Marcos (June through August) is characterized by the consistent high temperature around 30°C (86°F) with the lower averages slightly cooling off from the spring excesses to between 23.9°C (75°F) to 24.3°C (75.7°F). Humidity typically rises towards 80%, and the city encounters heavy rainfall amounting to 222mm (8.74") in June and 214mm (8.43") in August.

Autumn weather in San Marcos

Autumn (September to November) continues with the rainy patterns established in the summer. September and October are marked by the highest rainfall of the year. The temperature fluctuates from 29.1°C (84.4°F) to 29.6°C (85.3°F), with a low range of 23.1°C (73.6°F) to 23.6°C (74.5°F). The humidity level also remains relatively high.

Winter weather in San Marcos

The winter season in San Marcos (December through February), in contrast to many parts of the world, displays a tropical climate's signature warmth. The high temperatures settle in the range of 29.9°C (85.8°F) to 32.1°C (89.8°F) while the lower averages remain between 22.1°C (71.8°F) and 22.3°C (72.1°F). Although the rainfall decreases to less than 5mm (0.2") per month, the relative humidity doesn’t significantly drop, remaining above 64%.

Weather in January

The weather in January in San Marcos, Nicaragua, initiates the year with a balmy mix of high temperatures, reaching 30.9°C (87.6°F), amicable low temperatures recorded at 22.1°C (71.8°F), and relatively modest humidity of 67%. Weather in January »

Weather in February

Weather transitions into February in San Marcos, and brings slightly warmer high temperatures, peaking at 32.1°C (89.8°F), alongside marginally elevated low temperatures of 22.3°C (72.1°F) and a reduced relative humidity of 64%. Weather in February »

Weather in March

Coming into March, San Marcos experiences a subtle surge in temperatures to a high of 33.2°C (91.8°F), and an uptick in the lower temperatures to 22.9°C (73.2°F), coupled with a slight decrease in relative humidity to 60%. As winter says its farewell, the city welcomes more daylight hours, a boon for tourist activities and outdoor aficionados. Weather in March »

Weather in April

April takes the baton in San Marcos with an increase in both high and low temperatures, peaking at 33.8°C (92.8°F) and elevating to 24.6°C (76.3°F) respectively; although the relative humidity remains almost unchanged at 61%. Weather in April »

Weather in May

May in San Marcos brings a slight dip in the high temperatures to 32.4°C (90.3°F) along with an increase in low temperatures to 25.2°C (77.4°F) while maintaining relatively high humidity of 70%. As spring transitions towards summer, May welcomes the highest rainfall of 265mm (10.43"), marking the commencement of the city's wet season. Weather in May »

Weather in June

June in San Marcos experiences a slight decrease in high temperatures to 30.3°C (86.5°F) and a marginal drop in low temperatures to 24.3°C (75.7°F), while relative humidity climbs to 80%, its highest for the year. As San Marcos is in the full swing of the wet season, rainfall lessens somewhat but remains significant. Weather in June »

Weather in July

July in San Marcos witnesses quite steady temperatures with highs of 30.5°C (86.9°F) and lows around 23.9°C (75°F), holding steady in relative humidity of 79%. As the wet season progresses, rainfall witnesses a sizeable reduction, indicating a transition towards drier months. Weather in July »

Weather in August

August in San Marcos exhibits almost stable temperatures, with the highs marginally climbing to 30.7°C (87.3°F) and the lows steadying at 23.8°C (74.8°F), while maintaining the same relative humidity of 80%. The month witnesses an increase in rainfall by 66mm (2.6") from July, marking a surge in the city's wet season. Weather in August »

Weather in September

September in San Marcos experiences a slight dip in high temperatures to 30.2°C (86.4°F), while low temperatures maintain a steady 23.6°C (74.5°F), and relative humidity marginally rises to 82%. The weather exhibits continued rainfall indicating the persistence of the wet season. Weather in September »

Weather in October

October in San Marcos witnesses a decrease in high temperatures to 29.1°C (84.4°F) and a marginal decline in low temperatures to 23.1°C (73.6°F), while relative humidity climbs to its peak at 85%. The city confronts the highest rainfall of 401mm (15.79"), indicating the peak of the city's wet season. Weather in October »

Weather in November

November in San Marcos brings a slight increase in both high and low temperatures to 29.6°C (85.3°F) and 22.4°C (72.3°F), with a drop in relative humidity to 80%. The city signals the end of the wet season with a significant reduction in rainfall from the preceding month. Weather in November »

Weather in December

December in San Marcos sees a further increase in high temperatures to 29.9°C (85.8°F) and a slight drop in low temperatures to 22.2°C (72°F), with relative humidity reducing to 73%. The city greets the dry season with minimal rainfall of 21mm (0.83"), the lowest of the year. Weather in December »