Usulután Climate

Last updated: January 18, 2025

Usulután, El Salvador, is characterized by a tropical wet and dry climate according to the Köppen-Geiger classification (Aw). The region experiences a temperature range that sees a minimum of 18°C (65°F) in January, rising to an average of 28°C (82°F) throughout the year. Notably, temperatures can peak at an impressive 40°C (104°F) in April, reflecting the region's seasonal variability. This climatic profile highlights the significant warmth typical of tropical climates, presenting both opportunities and challenges for local ecosystems and agriculture.

Usulután temperature by month

In Usulután, El Salvador, temperature patterns reveal a distinct seasonal trend characterized by relatively warm conditions throughout the year. The coolest months are January and February, with minimum temperatures around 18-20°C (65-68°F) and maximums reaching up to 39°C (102°F). As the year progresses into March and April, temperatures begin to rise, peaking in April when maximums hit 40°C (104°F), marking the hottest point of the year. The late spring and early summer months of May through July maintain averages between 27-28°C (81-83°F), with maximums consistently around 38°C (100°F). Following the warmer months, temperatures gradually decline into the late summer and fall, tapering off to 27°C (81°F) in October and stabilizing into the cooler months of November and December with minimum temperatures returning to around 19°C (66°F). This overall pattern showcases a consistent warmth and a subtle seasonal fluctuation that defines Usulután's tropical climate.

Monthly Temperatures in Usulután, El Salvador

The chart illustrates Usulután's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec818384858381838281808181
Data source: Usulután temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

In Usulutan, temperatures in January range from a minimum of 21°C (69°F) to a maximum of 36°C (98°F) in February, while Jiquilisco mirrors these conditions with similar temperature patterns, with a minimum of 21°C (69°F) in January and a peak of 36°C (98°F) in February. In contrast, Berlin experiences cooler weather, with January's minimum at 18°C (65°F) and a higher maximum of 40°C (104°F) in April. For more detailed insights, visit monthly temperatures in Usulutan, monthly temperatures in Berlin, and monthly temperatures in Jiquilisco.

Precipitation Patterns in Usulután

Precipitation in Usulután, El Salvador, exhibits pronounced seasonal variability, with a stark contrast between the dry and wet months. The early months of the year, namely January through March, experience significantly low rainfall, totaling just 1-6 mm, with no recorded rainy days. This dry spell transitions abruptly into the rainy season, beginning in April with an increase to 31 mm of rainfall over 7 days. May marks the onset of heavy rain, accumulating an impressive 252 mm across 24 days, setting the stage for an extended period of precipitation that defines the region's climate.

As the summer months unfold, Usulután witnesses peak precipitation levels, particularly in June, July, August, and September. June sees the highest monthly total with 348 mm (13.7 in), while October records the most substantial rainfall of the year at 379 mm (14.9 in). This period is characterized by frequent rain, with the number of rainy days escalating to 27 in both September and October. Following this wet season, November and December experience a notable decline in precipitation, totaling just 75 mm and 4 mm, respectively. Overall, the distinct wet and dry seasons play a crucial role in shaping the environmental and agricultural dynamics of Usulután.

Monthly Average Precipitation in Usulután, El Salvador

The average monthly precipitation in Usulután, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12631252348137283286379754
Data source: Usulután precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Sunshine Duration in Usulután

In Usulután, El Salvador, sunshine duration exhibits a notable seasonal pattern, with hours steadily increasing from January to March, culminating in a peak of 329 hours in March. This upward trend indicates a transition from the cooler, shorter days of winter to more extended daylight as the region approaches summer. April and May maintain high levels of sunshine, with 320 and 315 hours, respectively, as the weather becomes warmer, creating optimal conditions for outdoor activities and agricultural growth.

As the rainy season sets in, beginning in June, there is a slight decline in sunshine hours, but the impact is minimal, with 291 hours still recorded. Interestingly, July sees an increase again, reaching 330 hours, reflecting the interplay between sunshine and rain during this time. The latter part of the year, from August to December, generally maintains consistent sunshine duration, ranging from 292 to 326 hours. Notably, the month of December wraps up the year with 326 hours of sunshine, highlighting the persistence of daylight even as the rainy season wanes. This consistent availability of sunlight throughout the year plays a significant role in shaping the region's vibrant ecosystems and agricultural productivity.

Monthly Sunshine in Usulután, El Salvador

Monthly sunshine duration represents the total hours of direct sunlight Usulután receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec264h294h329h320h315h291h330h318h304h292h308h326h
Data source: Usulután sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Usulután UV Index Trends

The UV Index in Usulután, El Salvador, reflects significant solar intensity throughout the year, with values predominantly classified as "extreme." From January to June, the UV Index remains strikingly high, peaking at 14 in March, April, May, and June, indicating a dangerously elevated risk for skin damage. With a consistent burn time of just 10 minutes, these months underscore the necessity for proper sun protection measures, especially during midday when the sun’s rays are at their strongest. In February, the UV Index reaches 12, while January sees a slightly lower, yet still worrying, index of 11.

As the year progresses into the latter months, the UV Index remains high, though it begins to taper slightly. From July to October, the UV Index stabilizes at 13, continuing to signify extreme exposure potential. November and December bring a modest decline, with values dropping to 10 and 9, respectively, classified as "very high." During these months, the burn time increases to 15 minutes, offering a minor reprieve, yet still necessitating vigilance against UV exposure. This trend emphasizes the importance of sun safety in Usulután, particularly during the long, sun-drenched months typical of its tropical climate.

Monthly Maximum UV Index for Usulután, El Salvador

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Usulután. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131313109
Data source: Usulután UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Usulután

In Usulután, El Salvador, daylight duration shows a relatively consistent pattern throughout the year, with minor fluctuations that align with the tropical climate. From January through February, residents can expect approximately 11 hours of daylight, setting a steady rhythm for the start of the year. As March arrives, daylight slightly increases to 12 hours, lasting through the subsequent months until the close of summer. This predictable pattern provides ample sunlight for both daily activities and essential agricultural practices, a vital aspect of life in this region.

As the year transitions into the latter months, daylight begins to decrease again, tapering back to 11 hours in October, November, and December. This decline toward the end of the year mirrors the changes in many tropical regions, where daylight hours remain fairly stable but reflect the shifting seasons. Overall, the consistent availability of daylight signals a reliable environment for growth and productivity, making Usulután a vibrant locale throughout its warm and inviting calendar year.

Average Monthly Daylight Hours in Usulután, El Salvador

This chart shows the total daylight hours Usulután receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec685h701h723h745h764h773h768h751h730h708h689h679h
Data source: Usulután daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Usulután's Popular Destinations

Berlin, El Salvador enjoys a tropical climate characterized by consistently warm temperatures and significant rainfall, especially from May to October. The average temperatures range from 26°C (80°F) in October to 29°C (85°F) in March and April, with maximums occasionally reaching 40°C (104°F). Precipitation peaks in June and October, with over 350 mm (13.8 in) in June alone, while January experiences minimal rainfall at just 1 mm (0.0 in). Despite the heavy rains, Berlin receives ample sunshine, particularly in March and July, with around 329 and 332 hours, respectively. For more detailed information, visit Berlin climate.

Concepcion Batres, El Salvador, experiences a tropical climate characterized by high temperatures and distinct wet and dry seasons. Average temperatures range from a low of 20°C (69°F) in January to a high of 36°C (96°F) in the warmer months of March through April. Rainfall is scarce at the beginning of the year, but significant precipitation occurs in May, June, and October, with June being the wettest month, averaging about 335 mm (13.2 in). Sunshine is abundant year-round, peaking in March with 329 hours. For more details, visit Concepcion Batres climate.

Jiquilisco, El Salvador, experiences a tropical climate characterized by warm temperatures year-round, with average monthly highs around 27°C to 29°C (81°F to 84°F) and peaks reaching up to 36°C (96°F). The region sees minimal rainfall from January to March, but experiences a significant increase during the rainy season from May to October, peaking in October with 409 mm (16.1 in) of precipitation. Sunshine is abundant, particularly in February and March, with over 295 hours of sunlight each month. For more detailed information, visit Jiquilisco climate.

Jucuapa, El Salvador, experiences a tropical climate characterized by high temperatures and distinct wet and dry seasons. The average temperatures range from a minimum of 18°C (65°F) in January to a maximum of 40°C (104°F) in April, with consistently warm conditions throughout the year. Precipitation peaks in May and October, with monthly averages reaching up to 358 mm (14.1 in) during the latter month, while the dry season sees very low rainfall. Sunshine is abundant, particularly in March with 329 hours, contributing to the area's agricultural viability. For more details on weather patterns, visit Jucuapa climate.

Jucuaran, El Salvador, experiences a warm tropical climate with temperatures averaging between 27°C (81°F) and 29°C (84°F) throughout the year. The hottest months are typically March to April, with maximum temperatures reaching up to 36°C (96°F). Rainfall peaks during May, June, and October, with June receiving the highest average at 335 mm (13.2 in). The region enjoys considerable sunshine, particularly in February and March, which have over 300 hours of sun. For more details, visit Jucuaran climate.

Ozatlan, El Salvador experiences a tropical climate characterized by high temperatures and significant rainfall. Average monthly temperatures range from a minimum of 18°C (65°F) in January to a maximum of 40°C (104°F) in April. The wet season peaks between May and October, with precipitation reaching as high as 358 mm (14.1 in) in October. Despite the rainy months, Ozatlan enjoys ample sunshine, particularly from March to July, where it sees over 300 hours of sunlight. For more detailed information, visit Ozatlan climate.

Puerto El Triunfo, El Salvador, experiences a warm climate characterized by minimal temperature fluctuation throughout the year, with averages ranging from 27°C (81°F) to 29°C (84°F). The hottest months are typically from March to May, while the rainy season peaks from May to October, with June receiving the highest precipitation at 353 mm (13.9 in). Despite significant rainfall during this period, the region enjoys abundant sunshine, particularly in February and March with over 295 hours monthly. For more detailed information, visit Puerto El Triunfo climate.

San Agustin, El Salvador experiences a tropical climate characterized by warm temperatures throughout the year. Average monthly temperatures range from 26°C (80°F) to 29°C (85°F), with maxima reaching as high as 40°C (104°F) in April. Rainfall is notable from May to October, peaking in June with 350 mm (13.8 in) of precipitation, while the dry months of January and February see minimal rainfall. Sunshine is abundant, especially in March with 329 hours, contributing to the region's overall warmth. For more detailed information, visit San Agustin climate.

Santa Elena, El Salvador, experiences a warm climate characterized by high temperatures throughout the year, with averages ranging from 26°C (80°F) in October to 29°C (85°F) in March and April. The region sees a significant increase in rainfall during the wet season from May to October, peaking at 358 mm (14.1 in) in October. The driest months are January and February, with minimal precipitation. Sunshine is abundant, particularly from March to July, where it exceeds 300 hours monthly. For more details, visit the Santa Elena climate.

Santiago de Maria, El Salvador, experiences a tropical climate characterized by warm temperatures year-round. Average monthly temperatures range from a minimum of 18°C (65°F) in January to a maximum of 40°C (104°F) in April. Rainfall peaks during the wet season from May to October, with May recording the highest precipitation at 266 mm (10.5 in), while the driest months are January and February. Despite significant rainfall during certain months, Santiago de Maria enjoys ample sunshine, particularly in March, averaging 329 hours. For more detailed climate information, visit Santiago de Maria climate.

Usulutan, El Salvador experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. Average temperatures range from 21°C (69°F) in January to a maximum of 36°C (96°F) during warmer months, with minimal variation throughout the year. Precipitation peaks in May, June, and October, with June receiving the highest rainfall at 353 mm (13.9 in). Despite significant rain, Usulutan enjoys abundant sunshine, particularly from March to May, with over 300 hours of sunlight each month. For more detailed information, visit Usulutan climate.

Conclusion

In conclusion, Usulután, El Salvador, presents a unique climatic profile characterized by its tropical wet and dry climate, yielding distinct patterns in temperature, precipitation, sunshine duration, UV Index, and daylight hours. The region enjoys warm temperatures year-round, with pronounced rainy seasons that foster rich agricultural opportunities. Sunshine duration remains generous, particularly during the dry months, while the consistently high UV Index necessitates awareness and protective measures for residents and visitors alike. With steady daylight hours throughout the year, Usulután’s climate supports a vibrant ecosystem and thriving local communities, making it a remarkable example of tropical environmental dynamics.

Discover the Climate of Usulután's Places

B C J O P S U