Last updated: January 18, 2025
La Unión, located in El Salvador, experiences a tropical savanna climate classified as Köppen-Geiger Aw. Characterized by mean annual temperatures that hover around 28°C (83°F), the region exhibits a minimum temperature of 17°C (62°F) in January, contrasting sharply with peak heat reaching up to 40°C (104°F) in February. This temperature range not only influences local weather patterns but also has significant implications for agriculture and the region's overall ecosystem.
In La Unión, El Salvador, temperature patterns exhibit distinct seasonal trends throughout the year. The dry season, spanning from January to April, is characterized by relatively stable temperatures, with daily maxima reaching up to 40°C (104°F) in February and averages around 29°C (84°F) during this period. As the region transitions into the wet season from May to October, temperatures begin to moderate slightly, with evening lows gradually increasing from 21°C (70°F) in May to around 20°C (68°F) in August, and average highs remaining in the upper 30s°C (near 100°F). Notably, September marks a slight dip in average temperature to 27°C (81°F), reflecting the onset of seasonal rainfall. The cooler months of November and December continue this trend, bringing minimum temperatures down to 17°C (63°F), while daily maximums diminish to around 35°C (95°F), allowing for a clear demarcation between the hot, dry season and the wetter months ahead.
In Conchagua, temperatures range from a minimum of 23°C (73°F) in February to a maximum of 33°C (92°F) in April, making it a warm destination throughout the early months of the year. Conversely, Santa Rosa de Lima experiences a wider temperature variance, with a minimum of 18°C (64°F) in January, escalating to a scorching maximum of 40°C (104°F) in February. Meanwhile, Pasaquina shows a minimum of 21°C (70°F) in January and a maximum of 37°C (99°F) in February. For more detailed temperature insights, visit monthly temperatures in Conchagua, monthly temperatures in Santa Rosa de Lima, and monthly temperatures in Pasaquina.
Precipitation in La Unión, El Salvador, reveals a pronounced seasonal pattern, with the majority of rainfall occurring during the wet season from May to October. January through March sees minimal rainfall, with January recording just 1 mm (0.0 in) and March only slightly increasing to 5 mm (0.2 in). However, a significant shift occurs in April, when precipitation rises sharply to 31 mm (1.2 in), marking the onset of the rainy season that leads to substantial downpours in subsequent months.
From May to October, La Unión experiences its heaviest rainfall, peaking in October with 370 mm (14.6 in), while May and June also contribute significantly with 254 mm (10.0 in) and 283 mm (11.2 in), respectively. The number of rainy days during this period varies, with September having the highest frequency at 25 days of rain. Conversely, the months of November and December see a return to drier conditions, with November recording just 57 mm (2.2 in) over 6 days, and December remaining relatively dry at 2 mm (0.1 in), further solidifying La Unión's clear wet and dry seasonal dichotomy.
In La Unión, El Salvador, sunshine duration exhibits a delightful seasonal pattern, with hours of sunlight steadily increasing from January to March, where March records the highest at 330 hours. This upward trend reflects the transition from the cooler dry season to the warm summer months, allowing residents and visitors alike to bask in the invigorating sunlight. April and May maintain high sunshine levels with 321 hours and 315 hours, respectively, as the region's climate shifts, though the onset of the wet season brings increased cloud cover, slightly reducing sunlight exposure.
As the rainy season approaches in June, sunshine hours decrease to 294 hours, yet the summer months of July and August rebound impressively, with July again narrowly leading at 332 hours. Despite occasional heavy rainfall, this time of year remains relatively sunny compared to the preceding months. As the year draws to a close, sunshine hours in November and December rebound to 305 hours and 326 hours, allowing for ample sunlight before the annual cycle resets. Overall, La Unión offers a broad range of sunshine durations, peaking in the mid-year months while exhibiting a gentle decline during the wettest periods.
In La Unión, El Salvador, the UV Index across the year remains consistently high, highlighting the importance of sun protection for residents and visitors alike. Starting with a UV Index of 11 in January, the exposure level is categorized as extreme, meaning that unprotected skin can begin to burn in just 10 minutes. This trend intensifies in February, peaking at 12, and continues to soar throughout the summer months, with March, April, May, and June all reaching a formidable 14. During this period, the recommendations for sun safety remain critical, as even brief exposure can lead to skin damage.
As the year progresses into the latter months, the UV Index remains notably elevated. From July to October, the Index stabilizes at 13, still within the extreme category, again allowing for a burn time of only 10 minutes. In November, a slight decrease to 10 denotes a very high exposure level, extending the burn time to 15 minutes, while December further drops to 9 but still sustains a very high rating. Throughout all months, this data emphasizes the need for diligent sun protection strategies, particularly during the peak levels, to mitigate health risks associated with UV exposure.
UV Risk Categories
In La Unión, El Salvador, daylight duration exhibits a consistent pattern throughout the year, generally fluctuating between 11 and 12 hours. During the early months of January and February, the region enjoys a stable 11 hours of daylight, setting the stage for a gradual increase as spring approaches. March marks a slight shift, introducing an additional hour of daylight, which maintains a steady count of 12 hours from March through June. This extended daylight benefits agricultural practices and outdoor activities, enhancing the vibrant lifestyle of the area.
As the mid-year months continue, daylight remains stable at 12 hours from July to September, providing ample time for sunlight and activity. However, from October onward, daylight hours begin to decrease again, returning to 11 hours by November and December. This cyclical pattern of daylight variation encapsulates the tropical nature of La Unión, where the changes are subtle yet significant, allowing residents to experience a predictable balance between day and night throughout the calendar year.
The climate in Anamoros, El Salvador is characterized by warm temperatures year-round, with January experiencing minimums of 17°C (62°F) and maximums reaching up to 36°C (97°F). Precipitation is notably concentrated in the rainy season from May to October, with October recording the highest rainfall at 346 mm (13.6 in). The region enjoys abundant sunshine, peaking in March with 329 hours of sunlight. Overall, the combination of heat and rain creates a distinct tropical climate. For more details, visit Anamoros climate.
Conchagua, El Salvador, experiences a tropical climate characterized by warm temperatures throughout the year. Average temperatures range from 27°C (81°F) in October to 29°C (85°F) in July, with maximum daily highs reaching up to 33°C (91°F). The region has a distinct rainy season, primarily from May to October, with October recording the highest precipitation at 431 mm (17.0 in). Despite the rainfall, sunshine is abundant, with hours ranging from 265 in January to 334 in July. For detailed climate information, visit Conchagua climate.
Intipuca, El Salvador experiences a warm tropical climate, with average temperatures ranging from 27°C (81°F) to 29°C (84°F) throughout the year. The region sees its highest rainfall in May (228 mm) and October (375 mm), marking the wettest months, while January and February are the driest with minimal precipitation. Sunshine is abundant, especially in March and July, boasting over 330 hours in these months. Despite the rain, Intipuca maintains a warm and inviting atmosphere for visitors. For more information, visit Intipuca climate.
La Union, El Salvador experiences a tropical climate characterized by warm temperatures year-round. Monthly average temperatures range from 27°C (81°F) in October to 29°C (85°F) in July, with maximum temperatures peaking at 33°C (91°F) in March, April, July, and June. The region sees significant rainfall, especially from May to October, with June typically receiving the most precipitation at 335 mm (13.2 in). Despite the rainy season, La Union enjoys ample sunshine, averaging over 290 hours per month. For more detailed information, visit La Union climate.
The climate in Nueva Esparta, El Salvador, features warm temperatures throughout the year, with monthly averages ranging from 26°C (79°F) to 29°C (84°F). The hottest months are February to April, where maximum temperatures can soar up to 39°C (102°F). Rainfall is minimal in the early months, but it significantly increases during the wet season from May to October, particularly peaking in October with 346 mm (13.6 in). Despite the rain, sunshine remains abundant, with hours ranging from 262 to 332 per month. For more detailed information, visit Nueva Esparta climate.
Pasaquina, El Salvador, experiences a tropical climate characterized by warm temperatures throughout the year, with averages ranging from 27°C (81°F) in October to 30°C (86°F) in March and July. The region sees little rainfall in the early months, but significant precipitation occurs from May to October, peaking in October with 367 mm (14.5 in). Sunshine is abundant, particularly in March, which boasts 329 hours of sunshine. Overall, the climate is marked by a distinct wet season and a drier, sunnier period. For more detailed information, visit Pasaquina climate.
San Alejo, El Salvador experiences a tropical climate characterized by warm temperatures year-round. January to March sees average temperatures range between 28°C (82°F) and 30°C (86°F), while April to October often reaches maximums of 39°C (102°F). The rainy season spans from May to October, with substantial precipitation peaking in October at 331 mm (13.0 in). Despite the rain, sunshine remains generous, particularly in March with 329 hours. For more detailed information, visit San Alejo climate.
Santa Rosa de Lima, El Salvador, features a tropical climate with high temperatures year-round. Average temperatures range from 27°C (80°F) in October to 30°C (86°F) in March and April, with maximums occasionally reaching up to 40°C (104°F) in February. Rainfall is significantly concentrated from May to October, with June and October receiving the most precipitation at 274 mm (10.8 in) and 331 mm (13.0 in), respectively. The area enjoys substantial sunshine, with around 329 hours in March and consistent sunlight throughout the year. For more detailed information, visit Santa Rosa de Lima climate.
In conclusion, the climate of La Unión, El Salvador, characterized by its distinct temperature patterns, steady precipitation cycles, high UV indexes, and consistent daylight durations, ultimately shapes the lifestyle and activities of its residents. The tropical savanna climate fosters warm temperatures year-round, with significant rainfall during the wet season, supporting rich agricultural practices. Meanwhile, high UV levels emphasize the necessity of sun protection, while the predictable daylight hours enable a reliable rhythm for daily life. As such, understanding these climatic factors is essential for both locals and visitors to fully appreciate and navigate the environmental dynamics of this vibrant region.