January Weather in Izalco, El Salvador

Last updated: August 21, 2025

January in Izalco, El Salvador presents a delightful climate characterized by warm temperatures and low precipitation. Daily highs can reach up to 32°C (91°F), while the average temperature settles comfortably around 24°C (76°F). The nights offer a refreshing contrast with minimum temperatures dipping to 16°C (61°F). This month typically experiences only 1 day of rain, contributing to a modest total precipitation of 7 mm (0.3 in), making it an ideal time for outdoor activities. With humidity levels at 63%, visitors can enjoy a pleasant tropical atmosphere while exploring the captivating beauty of this region.

January Temperature in Izalco

In January, Izalco, El Salvador, experiences a delightful warmth that sets the tone for the year, with temperatures ranging from a cool 16°C (61°F) at night to a comfortable 32°C (91°F) during the day. The average temperature sits at a pleasant 24°C (76°F), making it an ideal time for outdoor activities. As the month progresses into February, a subtle increase in warmth is noted, with averages rising to 25°C (77°F) and maximums nudging up to 33°C (92°F). This trend continues into March and April, where daytime highs remain consistently around 33°C (92°F) while nighttime lows gradually increase to the low twenties. Throughout the early months, the overall warmth stays fairly stable, creating inviting conditions. It's a charming preview of the tropical climate that characterizes the region, making January a fantastic juncture between cool nights and sunny days in Izalco.

January Weather in Izalco: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Izalco, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Izalco, January 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).
JanFebMarAprMayJunJulAugSepOctNovDec767778797877797877777776
Data source: Temperature data for Izalco 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.

January Precipitation in Izalco

January in Izalco, El Salvador, greets the new year with minimal rainfall, totaling just 7 mm (0.3 in) across a solitary precipitation day. This sparse precipitation marks the beginning of a gradual shift in weather patterns; as the months progress to April and May, the region experiences a dramatic surge in rainfall, peaking at 310 mm (12.2 in) in May. The transition from the dry start of the year to the onset of the wet season illustrates a clear trend of increasingly frequent and heavier rainfall, culminating in September, when an impressive 391 mm (15.4 in) falls over the entire month, showcasing the region's shift from dry to tropical downpours as summer approaches.

January Precipitation Trends in Izalco

The chart displays monthly precipitation patterns in Izalco, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Izalco, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7714713103702083313913897311
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Izalco

In January, Izalco, El Salvador experiences a moderate humidity level of 63%, setting a comfortable tone for the start of the year. This slight increase from February's 62% marks the beginning of a gradual upward trend, as the humidity consistently rises in the subsequent months. By June, the air feels noticeably more humid at 68%, paving the way for the peak of the season in July and August, when humidity soars to 77% and 79% respectively. As the year transitions to the fall, humidity levels begin to stabilize, remaining around 77% from September to October, before tapering off to 66% in December. This pattern highlights Izalco's tropical climate, characterized by increased moisture in the latter half of the year, creating a lush and vibrant environment.

January Average Humidity in Izalco

This chart illustrates the average monthly humidity levels in Izalco, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Izalco 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Izalco

In January, Izalco experiences an intense UV Index of 11, categorized as extreme, indicating that sun exposure should be approached with caution, as even brief periods can lead to sunburn within just 10 minutes. This extreme trend continues into February with a slight increase, reaching 12, but remains consistent at 14 from March through June. The peak UV levels highlight the importance of protective measures during these months, especially with a burn time that never exceeds ten minutes. As the year progresses, there is a slight dip in the index from July to October, fluctuating between 12 and 13, before dropping to 10 in November and 9 in December, where the exposure remains very high, allowing for slightly longer burn times of 15 minutes. Overall, Izalco’s UV index showcases a pattern of extreme exposure at the start of the year, necessitating vigilance and proper sun protection. For more information on sun safety, visit Izalco UV Index.

Maximum UV Index Levels in Izalco for January

The chart shows the monthly maximum UV Index (UVI) for Izalco in January, 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 January, the maximum UV index in Izalco typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131312109
Data source: Izalco January 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.

January Sunshine in Izalco

In Izalco, El Salvador, January kicks off the year with a delightful 262 hours of sunshine, setting a bright tone for the months ahead. As winter transitions into spring, the sunshine hours steadily increase, peaking in March with a generous 327 hours. Following this high, the warmth continues through April and May, with only a slight dip in June. The summer months bring a return to the sunshine bounty, as July matches March's peak, while August and September maintain a robust presence. As the year winds down, the sun remains generous, with November and December still offering over 300 hours of radiant light. Overall, the trend in Izalco suggests a vibrant, sun-kissed year, perfect for outdoor adventurers and sun-seekers alike.

Monthly Sunshine Duration in Izalco: January Highlighted

The January sunshine duration represents the total number of hours Izalco experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec262h292h327h319h313h283h327h311h297h286h309h325h
Data source: Izalco January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Izalco During January

In Izalco, El Salvador, January enjoys a 70% chance of sunny weather, making it one of the prime months for basking in the sunshine. As the dry season unfolds, the sun shines brighter, with February peaking at 81%, while the likelihood of sunny days declines sharply into the rainy months of May through August, when it drops as low as 13%. This trend reflects a distinct seasonal shift, where the early months of the year provide abundant sunshine, contrasting sharply with the cloudier periods that follow. By November, the sun starts to return, glimmering at 60% once again, and continues to offer pleasant days leading into December. With January as a gateway to sunny days, it’s an ideal time to revel in outdoor activities before the rains set in.

Percentage of Sunny Days in January in Izalco

The chart illustrates the percentage of sunny days in Izalco throughout the year, with January 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 Izalco experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec70%81%72%43%32%13%28%13%20%29%60%75%
Data source: Izalco January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Izalco in January

In Izalco, El Salvador, January heralds the start of the year with 11 hours of daylight, a trend that continues into February. As spring approaches in March, daylight extends to 12 hours, a duration that remains consistent through the summer months. This stable 12-hour sunlight span allows residents and visitors alike to enjoy nearly equal parts of day and night from March through September, promoting vibrant outdoor activities. As October rolls around, daylight begins to wane again, returning to 11 hours by November and December. This cyclical variation beautifully showcases Izalco's tropical climate, where the return to shorter days at year's end encourages a cozy close to the year.

Average Daylight Hours in Izalco for January

The chart illustrates the variation in daylight duration in Izalco throughout the year, with January 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: Izalco daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Izalco

In January, Izalco, El Salvador, welcomes a gentle embrace of nature as the wind whisks through the region at an average speed of 2.5 m/s (6 mph). This notable start to the year sets a tone of consistent breeziness, which continues through February at the same speed. As the months progress into March and April, a slight decline is observed, with wind speeds gradually decreasing to 2.4 m/s and 2.2 m/s, respectively. The calmness peaks around May and June when the winds soften to 1.6 m/s (4 mph) and 1.5 m/s (3 mph), inviting a tranquil atmosphere. However, the winds gently pick up again by November, hinting at a seasonal shift, before stabilizing at around 2.2 m/s (5 mph) in December. Overall, January lays the groundwork for a year of charming breezes, with noticeable trends reflecting both calm interludes and seasonal variations.

Average January Wind Speed in Izalco

The chart displays monthly wind speed patterns in Izalco, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.5 m/s2.52.42.21.61.51.71.51.41.42.32.2
Data source: Izalco January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Izalco Compares to Other Months

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

When comparing the weather in January and February, we see that both months maintain warm temperatures, but February is slightly warmer overall. In January, the temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), with an average of 24°C (76°F) and only 7 mm of precipitation spread over just 1 day. In contrast, February offers a bit more warmth, with temperatures ranging from 16°C (61°F) to a maximum of 33°C (92°F), an average of 25°C (77°F), and a slightly increased precipitation occurrence of 2 days, still totaling 7 mm. The humidity remains quite similar, at 63% in January and 62% in February. For more specific details, you can check Izalco weather in February.

In January, the weather tends to be warm with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), and an average of 24°C (76°F). This month sees limited rainfall, with only 7 mm (0.3 in) of precipitation over just one day, while humidity levels hover around 63%.

In contrast, March experiences slightly warmer conditions, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 33°C (92°F), and an average temperature of 26°C (79°F). However, rainfall increases to 14 mm (0.6 in) over four days, resulting in a slight drop in humidity to 59%. For a detailed look at the weather specifics, you can refer to Izalco weather in March.

In January, the weather is characterized by warmer temperatures, with a minimum of 16°C (61°F) and an average of 24°C (76°F), peaking at 32°C (91°F). Precipitation is minimal, averaging only 7 mm (0.3 in) across just one day, while humidity sits at 63%. In contrast, April brings slightly cooler nights with a minimum temperature of 20°C (67°F) and a higher average of 26°C (79°F), reaching a maximum of 33°C (92°F). However, April is significantly wetter, receiving 70 mm (2.8 in) of rain over 15 days, while humidity decreases slightly to 59%. For a more detailed look at what to expect, check Izalco weather in April.

In January, the weather is warm and relatively dry, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F). The average temperature stands at 24°C (76°F), and the humidity level is around 63%, making it a pleasant time of the year with just 7 mm (0.3 in) of precipitation over 1 day.

In contrast, May brings hotter temperatures with a minimum of 21°C (69°F) and an average of 26°C (79°F), peaking again at 32°C (90°F). However, it's significantly wetter, accumulating 310 mm (12.2 in) of rainfall over 28 days, although humidity slightly decreases to 59%. This stark difference highlights January's dry warmth compared to the rainy and humid conditions of May. For more details, check out Izalco weather in May.

When comparing the weather in January and June, notable differences emerge. January typically enjoys milder temperatures with a minimum of 16°C (61°F) and an average of 24°C (76°F), while June starts warmer, featuring a minimum of 21°C (70°F) and an average of 25°C (78°F). Both months share a maximum temperature of 32°C (91°F), but June is considerably wetter, receiving an impressive 370 mm (14.6 in) of precipitation over 28 days, compared to January's minimal 7 mm (0.3 in) over just one day. Additionally, humidity levels are slightly higher in June at 68% compared to January's 63%. For more details on June weather, you can check Izalco weather in June.

When comparing the weather between January and July, it's clear that January is generally drier and slightly cooler. In January, temperatures range from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), accompanied by just 7 mm of precipitation over one day, leading to a humidity level of 63%. In contrast, July experiences higher minimum temperatures starting at 21°C (70°F) and an average of 26°C (79°F), yet the most significant difference is the increase in precipitation, with 208 mm (8.2 in) spread across 26 days and a higher humidity of 77%. This substantial rise in rainfall makes July a much wetter month compared to January. For more detailed insights, check Izalco weather in July.

The weather in January is generally warm and dry, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F) and only 7 mm (0.3 in) of precipitation over just one day. In contrast, August experiences a more humid and rain-soaked climate, with temperatures typically ranging from a minimum of 21°C (69°F) to a maximum of 32°C (90°F) and a staggering 331 mm (13.0 in) of rainfall spread over 28 days. This significant increase in humidity, from 63% in January to 79% in August, reflects the contrasting weather patterns between these two months. For more detailed information, check Izalco weather in August.

In January, the weather is generally warm and dry, with temperatures ranging from a mild 16°C (61°F) to a maximum of 32°C (91°F) and only about 7 mm (0.3 in) of precipitation over just one day. The humidity levels hover around 63%, making it feel comfortably warm. In contrast, September experiences significantly wetter conditions, with a considerable increase in rainfall totaling 391 mm (15.4 in) spread across 30 days. The temperatures are slightly cooler, with minimums of 21°C (70°F) and maximums reaching 31°C (88°F), while humidity rises to 77%. For more details, you can explore Izalco weather in September.

In January, the weather is significantly warmer and drier compared to October. With minimum temperatures around 16°C (61°F) and a maximum of 32°C (91°F), January experiences an average temperature of 24°C (76°F) and only about 7 mm (0.3 in) of precipitation over just 1 day. In contrast, October brings a more humid climate, featuring higher average temperatures of 25°C (77°F) and a minimum of 20°C (68°F), but it also sees substantial rainfall, recording 389 mm (15.3 in) over 28 days. This shift not only reflects a drastic increase in precipitation but also a rise in humidity levels, which peak at 77% in October. For more specific details, you can check out Izalco weather in October.

January and November present contrasting weather conditions. January typically enjoys warmer temperatures with minimums around 16°C (61°F) and averages peaking at 24°C (76°F), while November starts slightly higher with minimums at 18°C (65°F) and an average of 25°C (77°F). Both months can reach a maximum of 32°C (89°F), but November experiences significantly more rainfall, with 73 mm (2.9 inches) over about 13 days, compared to January's minimal 7 mm (0.3 inches) over just a single day. Additionally, humidity levels are higher in November at 75%, compared to January's 63%. For more details on November weather, you can visit Izalco weather in November.

In January, the weather remains warm with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 32°C (91°F), similar to December where temperatures are slightly higher, with a minimum of 17°C (63°F) and a maximum of 32°C (89°F). Both months experience similar average temperatures of about 24°C (76°F). However, January has less precipitation, with only 7 mm (0.3 in) recorded over just one day, compared to December's 11 mm (0.4 in) over three days. Additionally, January is slightly less humid at 63%, while December sees humidity levels at 66%. For a detailed look at December's weather, you can visit Izalco weather in December.

Compare Izalco's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Izalco

January in Izalco offers a refreshing start to the year, characterized by mild temperatures and minimal rainfall. Unlike the peak heat and precipitation levels of other months, this time sees a comfortable average temperature, making it perfect for outdoor activities. The low humidity further enhances the pleasant conditions, with only a single day of rain recorded throughout the month. As you explore the beauty of Izalco in January, it's clear that this month stands out for its balance of warmth and dry weather. For more insights into the region’s climate, visit Izalco Climate.