May Weather in Ilopango, El Salvador

Last updated: August 21, 2025

In May, Ilopango, El Salvador experiences a vibrant climate characterized by a maximum temperature reaching 36°C (97°F) and an average temperature of 27°C (81°F), making it a warm destination. The month sees minimum temperatures around 20°C (69°F), providing pleasant evening relief. However, the region also receives significant precipitation, totaling 279 mm (11.0 in) across 26 days, resulting in high humidity levels averaging 59%. Travelers should be prepared for tropical rain showers while enjoying the lush landscapes that flourish under these conditions.

May Temperature in Ilopango

In May, Ilopango, El Salvador, experiences a warm transition as temperatures begin to rise. The minimum temperature is a comfortable 20°C (69°F), gradually nudging upward toward the hotter summer months. With an average of 27°C (81°F) and a maximum reaching 36°C (97°F), May presents a delightful blend of warmth and mildness, appealing to both locals and tourists. This pattern continues the trend of gradually increasing temperatures observed since January, making May an ideal time to enjoy outdoor activities before the more intense heat of June and July sets in. As the dry season persists, the pleasant evenings invite lingering strolls under the starry sky, marking May as a perfect month to savor Ilopango's vibrant atmosphere.

May Weather in Ilopango: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Ilopango, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilopango, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec788081828079818079787878
Data source: Temperature data for Ilopango generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Ilopango

May marks a significant turning point in Ilopango, El Salvador, as the region transitions into its rainy season. With an impressive 279 mm (11.0 in) of precipitation recorded over 26 days, May stands out as a month of abundant rainfall, contributing to the lush landscapes characteristic of this time of year. The stark contrast to earlier months—where January and February barely received any rain—highlights May's role in rejuvenating the local ecosystem. As the skies open up, they set the stage for June, which records even higher precipitation levels, emphasizing the cumulative effect of the rainy season and the essential role these rains play in supporting agriculture and sustaining the community.

May Precipitation Trends in Ilopango

The chart displays monthly precipitation patterns in Ilopango, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Ilopango, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec35551280313138232291286657
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ilopango

In Ilopango, El Salvador, May brings a consistent humidity level of 59%, mirroring the trends seen in the preceding months of March and April. This level indicates that as the dry season transitions toward the wetter months, residents can expect a comfortable atmosphere, albeit with a gradual increase ahead. The humidity begins to rise significantly in June, jumping to 68%, and continues its upward trajectory through the summer, peaking at 79% in August. Thus, while May maintains a relatively stable and pleasant condition, it serves as a precursor to the more humid months that follow, highlighting the region's distinct seasonal shift.

May Average Humidity in Ilopango

This chart illustrates the average monthly humidity levels in Ilopango, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Ilopango is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%62%59%59%59%68%78%79%77%77%75%67%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ilopango

In May, Ilopango, El Salvador, continues to bask in perpetual sunshine, showcasing an impressive UV Index of 14, which places it in the extreme exposure category. This promising figure isn't just a May phenomenon; it reflects a consistent trend we've seen since January, with the UV Index steadily maintaining a high level throughout these early months of the year. The burn time remains a swift 10 minutes, urging residents and visitors alike to take protective measures against the sun's potent rays. As this pattern persists into June, it's essential to stay informed about the UV Index for safe outdoor enjoyment. For more detailed insights on UV levels throughout the year, explore Ilopango UV Index.

Maximum UV Index Levels in Ilopango for May

The chart shows the monthly maximum UV Index (UVI) for Ilopango in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Ilopango typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131313109
Data source: Ilopango May UVI data generated using information from the Copernicus Climate Change Service.

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.

May Sunshine in Ilopango

As spring gives way to summer in Ilopango, El Salvador, May shines brightly with an impressive 313 hours of sunshine, continuing the trend of robust daylight seen throughout the year. After an energizing March, which recorded the highest at 328 hours, April follows closely with 319 hours, establishing a sunny rhythm that persists into May. Following this peak, June experiences a slight dip to 284 hours, but the overall pattern reveals a delightful consistency in sunshine, with most months hovering around the 300-hour mark. This trend not only showcases the region's vibrant climate but also offers a picturesque backdrop for both residents and visitors to indulge in outdoor activities and explore the beauty of El Salvador.

Monthly Sunshine Duration in Ilopango: May Highlighted

The May sunshine duration represents the total number of hours Ilopango experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec263h292h328h319h313h284h328h313h299h290h308h326h
Data source: Ilopango May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ilopango During May

In Ilopango, El Salvador, the likelihood of enjoying sunny weather in May dips to 37%, marking a significant decline from the sunniest months of earlier in the year. While January and February bask in high probabilities of sunshine at 67% and 76% respectively, April sees a steep drop to 41%. This trend continues into May, suggesting that as the dry season wanes, residents and visitors alike should prepare for increased cloud cover and a greater chance of rain. The shift becomes even more pronounced in the following months, with June plummeting to just 14%. Therefore, while May may still offer some sunny days, it is wise to anticipate a transition toward wetter weather as summer approaches.

Percentage of Sunny Days in May in Ilopango

The chart illustrates the percentage of sunny days in Ilopango throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ilopango experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec67%76%70%41%37%15%32%16%24%32%56%71%
Data source: Ilopango May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ilopango in May

In Ilopango, El Salvador, the variation in daylight duration throughout the year showcases a fascinating pattern. From January to February, daylight remains consistent at 11 hours, hinting at the gentle start of the year. As spring approaches in March and April, daylight extends to 12 hours, welcoming longer, brighter days. This trend of 12 hours continues steadfastly through May, June, July, August, and September, highlighting a wonderfully stable period of sunlight during the wet season. However, as the year wanes, daylight begins to retract back to 11 hours in October, and this pattern persists through the end of the year, reestablishing a sense of cyclical rhythm in the region's climate. Overall, the blend of consistent daylight and gradual shifts emphasizes the unique seasonal charm of Ilopango.

Average Daylight Hours in Ilopango for May

The chart illustrates the variation in daylight duration in Ilopango throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 41m12h 3m12h 26m12h 45m12h 54m12h 49m12h 32m12h 10m11h 47m11h 28m11h 18m
Data source: Ilopango daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Ilopango

In Ilopango, El Salvador, the month of May marks a noticeable decline in average wind speed, dipping to 1.4 m/s (3 mph), the lowest recorded speed for the year. This gradual decrease begins in April and continues through June, suggesting a trend towards calmer conditions as the region transitions into the rainy season. Interestingly, after the relatively breezy months of January to April, where wind speeds hover around 2.0 m/s, May's gentle breezes give way to stiller days ahead. This pattern not only highlights the seasonal shifts, but also offers a fascinating glimpse into the soothing nature of Ilopango's late spring climate.

Average May Wind Speed in Ilopango

The chart displays monthly wind speed patterns in Ilopango, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.02.01.81.4 m/s1.11.41.21.21.22.01.8
Data source: Ilopango May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Ilopango Compares to Other Months

Weather in Ilopango varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Ilopango, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January present quite distinct weather patterns. In May, temperatures range from a minimum of 20°C (69°F) to a maximum of 36°C (97°F), with an average of 27°C (81°F). This month is characterized by significant rainfall, totaling 279 mm (11.0 in) over 26 days, and a humidity level of 59%. In contrast, January features milder temperatures, with a minimum of 14°C (58°F), an average of 26°C (78°F), and also a maximum of 36°C (97°F). However, January is largely dry, receiving only 3 mm (0.1 in) of precipitation on no days, and slightly higher humidity at 63%. For more details on January weather in Ilopango, you can check Ilopango weather in January.

May and February present contrasting weather conditions. In May, temperatures range from a minimum of 20°C (69°F) to a maximum of 36°C (97°F), with an average of 27°C (81°F). However, this month also sees significant rainfall, with 279 mm (11.0 in) of precipitation over 26 days, and humidity levels around 59%. In contrast, February enjoys warmer nights with a minimum of 16°C (61°F) and can peak at 39°C (102°F), averaging 26°C (80°F). Remarkably, February experiences very little rain, averaging only 5 mm (0.2 in) over just one day, alongside slightly higher humidity at 62%. For more details on February weather, you can visit Ilopango weather in February.

In comparing the weather between May and March, we observe a striking contrast in precipitation and rainy days despite similar average temperatures. May experiences a minimum temperature of 20°C and an average of 27°C, but it is characterized by heavy rainfall, totaling 279 mm over 26 days. On the other hand, March has slightly lower minimum temperatures at 18°C and maintains the same average of 27°C, but it enjoys significantly drier conditions, with only 5 mm of rain over just 1 day. The humidity levels in both months are consistent at 59%, but the overall atmosphere in March feels much less damp due to the lack of rainfall. For more detailed insights into March weather, visit Ilopango weather in March.

In comparing the weather between April and May, April exhibits slightly higher average temperatures, with daily highs reaching up to 38°C (101°F) compared to May's maximum of 36°C (97°F). Both months have similar minimum temperatures, with April at 19°C (67°F) and May at 20°C (69°F). However, May sees a dramatic increase in precipitation, totaling 279 mm (11.0 in) over 26 days, whereas April only experiences 51 mm (2.0 in) across 15 days. Interestingly, humidity remains constant at 59% for both months. For more details on April conditions, you can visit Ilopango weather in April.

May and June exhibit similar temperature ranges, with May presenting slightly warmer conditions. In May, the minimum temperature is 20°C (69°F) and averages at 27°C (81°F), whereas June shows a minimum of 21°C (70°F) and an average of 26°C (79°F). Precipitation levels increase in June, reaching 313 mm (12.3 in) over 27 days, compared to May's 279 mm (11.0 in) over 26 days. Additionally, June has higher humidity at 68% compared to May's 59%, indicating a more humid environment. For a detailed look at June weather, check out Ilopango weather in June.

May and July share similar average temperatures, both hovering around 27°C (81°F), but they differ significantly in precipitation and humidity. May experiences a noteworthy 279 mm (11.0 in) of rainfall over 26 days, while July sees a substantial decrease to just 138 mm (5.4 in) across 18 days. Additionally, July's humidity rises to 77%, compared to May's 59%, making the air feel heavier. For more detailed weather information specific to July, you can check Ilopango weather in July.

When comparing the weather of May and August, some notable similarities and differences emerge. Both months experience similar average temperatures, hovering around 27°C (81°F), with maximums reaching up to 36°C (97°F). However, May tends to be slightly wetter, receiving 279 mm (11.0 in) of precipitation over 26 days, while August sees a decrease in rain to 232 mm (9.1 in) over 24 days. Humidity levels are also higher in August at 79%, compared to 59% in May, making the latter month feel less muggy despite the warm temperatures. For more details on the specific weather conditions in August, you can visit Ilopango weather in August.

May and September exhibit distinct weather patterns, with both months experiencing warm temperatures but varying in precipitation and humidity. In May, temperatures range from a minimum of 20°C (69°F) to a maximum of 36°C (97°F), with an average of 27°C (81°F) and a total precipitation of 279 mm (11.0 in) over 26 days. In contrast, September sees slightly lower maximum temperatures, reaching 34°C (94°F), and an average of 26°C (79°F), though the rainfall increases to 291 mm (11.5 in) distributed over 28 days. Moreover, September is characterized by higher humidity levels at 77%, compared to May's 59%. For more insights into weather conditions during September, you can visit Ilopango weather in September.

In May, temperatures range from a minimum of 20°C (69°F) to a scorching maximum of 36°C (97°F), with an average temperature of 27°C (81°F). The month experiences considerable rainfall, totaling 279 mm (11.0 in) over 26 days, and maintains a humidity level of 59%. In contrast, October brings slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 34°C (93°F), averaging 25°C (78°F). The precipitation in October is marginally higher, with 286 mm (11.3 in) falling over 28 days, and humidity significantly increases to 77%. For more details about the weather in October, you can visit Ilopango weather in October.

May and November present distinct weather patterns, with May typically being hotter and much wetter. In May, temperatures range from a minimum of 20°C (68°F) to a maximum of 36°C (97°F), accompanied by significant rainfall totaling 279 mm (11.0 in) over 26 days, resulting in a humidity level of 59%. In contrast, November sees slightly cooler temperatures, with a minimum of 18°C (64°F) and a maximum of 34°C (94°F). Precipitation in November is much lighter at 65 mm (2.5 in) spread over only 9 days, and the humidity rises to 75%. For a more detailed look at the weather conditions in November, you can visit Ilopango weather in November.

May and December present distinctly different weather patterns. In May, temperatures range from a minimum of 20°C (69°F) to a maximum of 36°C (97°F), with an average of 27°C (81°F). The month is characterized by significant rainfall, totaling 279 mm (11.0 in) over 26 days, contributing to a humidity level of 59%. In contrast, December features milder temperatures ranging from 16°C (62°F) to 35°C (96°F), with an average temperature of 25°C (78°F). Precipitation drops dramatically to just 7 mm (0.3 in) over only 1 day, leading to higher humidity at 66%. For more details about December weather, you can visit Ilopango weather in December.

Compare Ilopango's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Ilopango

In May, Ilopango boasts a warm and humid climate, with temperatures peaking at 36°C and an average of 27°C. This month stands out for its significant precipitation, receiving nearly 279 mm of rain over approximately 26 days, marking a shift from the drier months preceding it. As the region transitions into the wet season, the combination of increased humidity at 59% and frequent rains creates a lush atmosphere, making it a vibrant time to experience the local flora and fauna. To explore more about the weather trends in Ilopango, visit Ilopango Climate.