Last updated: August 21, 2025
In December, San Miguel, El Salvador experiences a warm tropical climate, with maximum temperatures reaching up to 36°C (98°F) and an average temperature around 27°C (80°F). The minimum temperature dips to a comfortable 18°C (64°F), providing a pleasant escape from cooler winter months in other regions. Rainfall is minimal, with only 5 mm (0.2 in) of precipitation spread over just 2 days of the month, while humidity levels hover around 66%, adding a slight tropical feel to the air. This combination of warmth and low rainfall makes December an attractive time for visitors seeking sunny weather in San Miguel.
In December, temperatures in San Miguel, El Salvador begin to showcase a transition as the year comes to a close. With a minimum of 18°C (64°F) and an average of 27°C (80°F), the weather remains pleasantly warm. The maximum temperature can reach up to 36°C (98°F), mirroring the warmth of earlier months but starting to cool slightly from the peak heat of summer. While December maintains a tropical ambiance, it hints at a gradual shift towards the cooler months ahead. Overall, this month offers a delightful blend of warmth and comfort, ideal for enjoying the vibrant local culture and outdoor activities without the extreme heat of the peak season.
In December, San Miguel experiences a notable drop in precipitation, accumulating just 5 mm (0.2 in) across 2 days. This slight increase from November's 73 mm signals the end of the rainy season, where May to October dominate with hefty downpours, peaking at 371 mm (14.6 in) in October. The trend reveals a sharp contrast, as the previous months are characterized by frequent rain, culminating in 25 days in May alone. As the year comes to a close, December's dry spell showcases the region's transition to a drier climate, providing a brief respite before the cycle begins anew in the following year.
In December, San Miguel, El Salvador, experiences a notable shift in humidity, with levels averaging 66%—a slight dip from the peaks of the rainy season. As the year progresses, we observe that humidity rises steadily during the summer months, reaching a peak of 79% in August before tapering off in September and October. This gradual decline continues into the end of the year, culminating in December's comfortable levels. Interestingly, the drier months at the beginning of the year exhibit lower humidity, hovering around 59-63%. This trend emphasizes the dynamic climate of San Miguel, where seasonal transitions significantly impact humidity, providing both relief and warmth amidst the enchanting tropical backdrop.
In December, San Miguel experiences a UV Index of 9, placing it in the very high exposure category. While this marks a slight decrease from the extreme levels seen throughout the earlier months, where indexes soared between 11 and 14, the risk of sunburn remains significant with a burn time of just 15 minutes. This trend of high UV exposure underscores the importance of sun protection year-round. Visitors and residents alike should remain vigilant in their efforts to safeguard their skin against harmful rays, even as the year draws to a close. For more detailed insights, check out the complete information here: San Miguel UV Index.
UV Risk Categories
December in San Miguel, El Salvador, is a delightful month basking in 326 hours of sunshine, a fitting close to the year. This month stands out with its generous daylight, contributing to a remarkable trend of increasing sunlight hours leading into the New Year. Notably, the sunny streak begins with 263 hours in January, gradually rising each month before peaking in July at 332 hours. The consistent brightness from December also highlights a strong finish as it follows the slightly lower hours of October and November. Overall, San Miguel's December offers a vibrant atmosphere, making it a perfect time to enjoy the warm rays of the sun.
In December, San Miguel, El Salvador experiences a promising likelihood of sunny weather, boasting a 77% chance of sunshine. As the year winds down, the city transitions from the wet season towards a drier climate, with December's sunlit days echoing the patterns observed in January and November, where sunny probabilities are 72% and 57% respectively. This trend suggests a delightful shift towards brighter skies, making it an ideal time for visitors to relish the beautiful warmth and vibrant atmosphere of San Miguel, just as the rainy season begins to retreat. The forecast paints a cheerful picture, enticing both locals and tourists to enjoy the seasonal charm of this captivating destination.
In San Miguel, El Salvador, the daylight duration exhibits interesting trends throughout the year. Starting with 11 hours in January and February, the days gradually lengthen to a generous 12 hours from March through September, creating an inviting atmosphere for outdoor activities. As the year transitions into October, November, and finally December, daylight retreats back to 11 hours, signaling the end of the longer days. This seasonal fluctuation highlights San Miguel's stability in daylight duration, with a peak in the heart of the year and a soft return to shorter days as the festive season approaches. Ideal for planning everything from sun-soaked adventures to cozy nights, December remains a balanced month for both residents and visitors alike.
As December settles over San Miguel, travelers can expect a refreshing change in the air, with average wind speeds reaching 1.5 m/s (3 mph). This slight uptick in wind speed after a dip in the summer months provides a gentle breeze that enhances the holiday atmosphere, making evenings outdoors particularly enjoyable. Notably, December’s winds are a welcome contrast to the stillness experienced during the peak of the rainy season, as wind speeds gradually climbed from the year's lowest points in October and September. The consistent yet mild winds create the perfect backdrop for enjoying the festive season, contributing to the charm of this vibrant Salvadoran city.
Weather in San Miguel varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Miguel, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, San Miguel experiences a range of temperatures with a minimum of 18°C (64°F) and an average of 27°C (80°F), peaking at a maximum of 36°C (98°F). The month sees some precipitation, with about 5 mm (0.2 in) of rain over 2 days and a humidity level of 66%. In contrast, January offers slightly warmer conditions, with temperatures ranging from a minimum of 18°C (65°F) to an average of 28°C (82°F) and reaching up to 37°C (99°F). This month is notably drier, receiving only 1 mm (0.0 in) of rain and no rainy days, accompanied by slightly lower humidity at 63%. For more details on the weather in January, you can check San Miguel weather in January.
In comparing the weather of December and February, one can observe notable differences in temperature and precipitation. December typically sees temperatures ranging from a minimum of 18°C (64°F) to a maximum of 36°C (98°F), with an average temperature of 27°C (80°F). This month experiences about 5 mm of precipitation over 2 days and a humidity level of 66%.
In contrast, February tends to be warmer, featuring a minimum temperature that remains consistent at 18°C (65°F) but an increased maximum of 40°C (104°F) and an average of 29°C (84°F). Interestingly, February enjoys even drier conditions with only 2 mm of precipitation over 0 days and slightly lower humidity at 62%. For more detailed insights into February's weather specifics, you can visit San Miguel weather in February.
In December, the weather in San Miguel typically sees a minimum temperature of 18°C (64°F) and an average of 27°C (80°F), with maximums reaching up to 36°C (98°F). The month experiences light precipitation of about 5 mm (0.2 in) across 2 days, coupled with a humidity level of 66%. In contrast, March presents a slightly warmer climate, with minimum temperatures of 20°C (69°F) and an average of 30°C (86°F), peaking at 39°C (102°F). Notably, March boasts no recorded precipitation, leading to a drier atmosphere with a lower humidity level of 59%. For detailed insights on March weather, you can visit San Miguel weather in March.
December tends to have milder weather compared to April, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 36°C (98°F). The month sees minimal rainfall, averaging just 5 mm over only 2 days, and the humidity is relatively high at 66%. In contrast, April experiences warmer conditions, with temperatures starting at 22°C (72°F) and peaking at 39°C (103°F). Rainfall increases significantly during this month, averaging 40 mm over 10 days, and the humidity is slightly lower at 59%. For more detailed insights, you can check out San Miguel weather in April.
In December, San Miguel experiences warm temperatures with a minimum of 18°C (64°F) and an average of 27°C (80°F), peaking at 36°C (98°F). The month sees minimal precipitation, averaging just 5 mm (0.2 in) over two days, with humidity levels around 66%. In contrast, May brings even warmer temperatures, with lows of 22°C (72°F), an average of 28°C (83°F), and maximums reaching 39°C (102°F). However, May is significantly wetter, receiving 294 mm (11.6 in) of rain over 25 days, while humidity drops slightly to 59%. The contrasting weather patterns highlight December's dry warmth versus May's hot and rainy conditions. For more detailed information, you can check San Miguel weather in May.
In comparing the weather between December and June, we see distinct differences in temperature, precipitation, and humidity. December offers a warmer climate with average temperatures ranging from a mild 18°C (64°F) at night to a high of 36°C (98°F) during the day, along with minimal precipitation of just 5 mm (0.2 in) over 2 days and a humidity level of 66%. In contrast, June experiences slightly cooler nighttime temperatures (minimum 22°C or 71°F) while maintaining the same daytime highs. However, June is notably wetter, with an impressive 347 mm (13.6 in) of rainfall over 24 days and a humidity increase to 68%. For more detailed insights about the weather in San Miguel during June, you can refer to San Miguel weather in June.
In December, the weather in San Miguel is generally warm and dry, with average temperatures ranging from a comfortable 18°C (64°F) at night to a hot 36°C (98°F) during the day. The humidity sits around 66%, and there is only minimal precipitation, averaging just 5 mm over 2 days. In contrast, July's weather is noticeably hotter and more humid, with minimum temperatures starting at 21°C (70°F) and maxing out at 38°C (100°F). Additionally, July experiences significant rainfall, with an average of 131 mm over 17 days and a higher humidity level of 77%. For further details, you can explore San Miguel weather in July.
When comparing the weather in December and August, it's clear that both months feature warm temperatures, but they differ significantly in precipitation and humidity. In December, temperatures range from a minimum of 18°C (64°F) to a maximum of 36°C (98°F), with an average of 27°C (80°F). The month experiences minimal rainfall, with only 5 mm (0.2 in) over just 2 days and humidity levels at 66%. In contrast, August sees slightly higher temperatures, with a minimum of 21°C (70°F), an average of 28°C (82°F), and a peak of 38°C (101°F). However, it is much wetter, receiving a substantial 316 mm (12.4 in) of rain spread over 22 days and higher humidity at 79%. For more details about weather in August, you can visit San Miguel weather in August.
When comparing the weather in December and September, it's clear that December boasts warmer temperatures with a minimum of 18°C (64°F) and an average high of 36°C (98°F), while September starts off slightly cooler, with a minimum of 21°C (71°F) but an average high of 36°C (97°F). Notably, December features significantly lower precipitation, with only 5 mm (0.2 in) over just 2 days, compared to September’s considerable rainfall of 300 mm (11.8 in) across 27 days. Additionally, while December's humidity is a moderate 66%, September experiences a higher humidity level of 77%. For more details on September weather specifics, you can check San Miguel weather in September.
In comparing the weather between December and October, it's clear that December offers warmer temperatures, with a lower minimum of 18°C (64°F) and a higher maximum of 36°C (98°F) compared to October's minimum of 21°C (70°F) and maximum of 34°C (93°F). While December sees much less precipitation at just 5 mm (0.2 in) over 2 days, October is characterized by heavy rainfall, accumulating 371 mm (14.6 in) across 28 days. Additionally, humidity levels are higher in October at 77%, compared to December's 66%. For more detailed insights on October’s conditions, you can visit San Miguel weather in October.
In December, the weather in San Miguel offers a warmer atmosphere compared to November, with average temperatures rising slightly from 26°C (80°F) to 27°C (80°F). The maximum temperature also sees an increase, reaching 36°C (98°F) in December, compared to 34°C (94°F) in November. Notably, December experiences significantly less precipitation, with only 5 mm (0.2 in) over just 2 days, while November records a much higher rainfall of 73 mm (2.9 in) across 9 days. Humidity levels are more comfortable in December, averaging 66% compared to November's 75%. For more details on the weather patterns in November, check San Miguel weather in November.
As December rolls in, San Miguel experiences a delightful shift in weather, making it a popular time for visitors. With average temperatures hovering around a pleasant 27°C (80°F) and the occasional maximum soaring to 36°C (98°F), the warmth is tempered by lower humidity levels, creating a comfortable atmosphere for outdoor activities. Unlike the heavier rains of other months, December sees just a sprinkle of precipitation, totaling only 5 mm, making it one of the drier months of the year. This combination of warm days and cooler nights offers the perfect backdrop for enjoying all that this vibrant city has to offer. For a deeper understanding of seasonal patterns, be sure to check out San Miguel Climate.