Climate and monthly weather forecastIlopango, El Salvador
Climate and monthly weather forecast
The climate of Ilopango
Ilopango, nestled within El Salvador, is predominantly characterized by the Aw Köppen climate classification, best known as Tropical wet and dry or Savanna. Geographically positioned in a region where tropical climates claim precedence, Ilopango becomes a stage to a series of climatic phenomena throughout the year. Examining the climate parameters of Ilopango reveals that the annual temperature stays in the region from 19°C (66.2°F) to 33.4°C (92.1°F). The relative humidity concert varies from 61% to 82% confirming the hold of the tropical climate over Ilopango.Throughout the year, Ilopango witnesses variations in different weather parameters. One striking feature is the rainfall pattern, with the precipitation ranging significantly from a meagre 2mm (0.08") in the dry season to an imposing 267mm (10.51") during the monsoons. Ilopango receives abundant rainfall from April to October, with the peak in May experiencing 267mm (10.51"). The months from November to March record significantly lower rainfall.
Most noteworthy in Ilopango's annual weather pattern is its unique feature of temperature. While most regions have their hottest months somewhere in the middle of the year, in Ilopango, the warmest month appears in March and April, both recording an average high temperature of 33.4°C (92.1°F). Following this, the months of May to July undergo a slight dip in temperature.
The best time to visit Ilopango
The most suitable time to visit Ilopango would be during the drier months from November to March when rainfall is at a minimum. These months also see relatively cooler temperatures, making it the perfect weather for outdoor activities. Tourists can enjoy maximum daylight for their outings as daylight hours range from 11.3h to 12.1h during this period. With the Kubben climate index at its best, these months pose an excellent opportunity for vacationers to explore and enjoy Ilopango to its extent.The worst time to visit Ilopango
Among the climatic nuances of Ilopango, May to October are considered the less favourable months for a visit. These months are characterized by heavy rainfall, high humidity, and comparatively less sunshine. Visibility tends to dip down to 8km (5mi), which might pose a challenge for sightseeing and other outdoor activities. Therefore, it's best to avoid these months for travel to Ilopango.Spring weather in Ilopango
While Ilopango does not experience a regular spring due to its tropical climate, March, considered among the spring months in many regions, is worth noting. During this time, temperatures begin to soar up to their annual peak of 33.4°C (92.1°F), and rainfall is minimal at 6mm (0.24").Summer weather in Ilopango
Summers in Ilopango span from April to June. April carries over the high temperature of 33.4°C (92.1°F) from March. As the summer progresses, rainfall makes a gradual entry starting from 53mm (2.09") in April, and moving up to a significant 179mm (7.05") in June.Autumn weather in Ilopango
The understanding of autumn is different here in tropical Ilopango. The months of September and October can be seen as autumn months, where one can observe slow decrease in temperature. September welcomes a slightly cooler atmosphere with an average high temperature of 30.5°C (86.9°F) and comparatively less rainfall than the previous months at 150mm (5.91").Winter weather in Ilopango
In the winter months of November and December, Ilopango witnesses lower temperatures, compared to the rest of the year, falling to an average low of 19.1°C (66.4°F) in December. Rainfall too takes a substantial dip to 6mm (0.24") in December. This period sees increased sunshine for up to 7.7h per day and lowest relative humidity of the year end at 69% make winter an ideal time for travellers to visit Ilopango.Weather in January
January in Ilopango, El Salvador ushers in the new year with comfortable temperatures. Sightseeing and outdoor activities are delightful under 11.4 hours of daylight. Tourists and residents reap the benefits from 7.7 hours of sunshine during the day. Weather in January »Weather in February
February in Ilopango offers a slightly warmer weather compared to January. Longer days provide an average of 11.7 hours of daylight with 9 hours of sunshine. More hours in the day also mean increased UV exposure with an index of 7. Weather in February »Weather in March
March brings in a slight increase in temperature, humidity, and rainfall compared to February. Days further extend to 12.1 hours of daylight. While temperatures rise, a 19% cloud coverage keeps the weather tolerable. Rainfall, albeit slight from 7mm (0.28") to 6mm (0.24"), is noticeable throughout the city. Weather in March »Weather in April
Considered the transition month into the wet season, April witnesses a significant leap in rainfall from 6mm (0.24") to 53mm (2.09"). Within the 12.5 hours of daylight, 11.3 hours of sunshine can be enjoyed, but remember to protect yourself given the UV index of 7. Weather in April »Weather in May
May marks the official start of the wet season in Ilopango. In stark contrast to previous months, the city experiences 267mm (10.51") of rainfall over 26.9 rainy days. Yet, 12.8 hours of daylight and 10.7 hours of sun often punctuate the rainfall. Weather in May »Weather in June
Mild changes mark weather in June with a slight decrease in temperature. The city witnesses decreased visibility due to increased rainfall from 179mm (7.05") over 26.2 rainy days. Along with relentless showers, June also sees a consistent decline in sunlight hours to 10.4, while daylight hours remain almost constant. Weather in June »Weather in July
In July, Ilopango undergoes a curious weather pattern. Although rainfall decreases to 120mm (4.72"), humidity remains high at 77%. Average daylight hours and hours of sunshine hover consistent around 12.8 and 11.1 respectively. Residents and tourists can anticipate wind gusts at 8.2km/h (5.1mph), a change from the previous month. Weather in July »Weather in August
August brings with it a sense of steadiness in Ilopango. The 36% cloud coverage provides a slight shelter from the 6 rated UV index under 12.6 hours of daylight. A minor increase in rainfall to 161mm (6.34") compared to July gives the city a wet appearance. Weather in August »Weather in September
September marks a peak in rainfall with 150mm (5.91") received over 26.5 days. The reduction in daylight hours to 12.2 coincides with the decline in temperatures. Wind speeds lessen slightly to 4.5km/h (2.8mph), providing a small respite from the dowpour. Weather in September »Weather in October
As October rolls in, Ilopango residents brace for damp days due to the rise in rainfall up to 223mm (8.78"). However, the city compensates with an increase in the average hours of sunshine up to 8.3, albeit amidst 40% cloud coverage. Weather in October »Weather in November
November in Ilopango sees a drastic reduction in rainfall to 42mm (1.65") over 12.8 rainy days, signaling the end of the wet season. Prolonged hours of sunshine at 8.9 hours make up for the more frequented cloudy days. Even with a slight drop in temperatures, weather remains agreeable. Weather in November »Weather in December
December witnesses considerable relief from months of downpour as it receives mere 6mm (0.24") rainfall over 2.8 days. Increased sunshine hours at 7.7 amidst 11.3 hours of daylight convey a sense of optimism. Lower temperature average at 19.1°C (66.4°F) ensures a cool, pleasant climate, perfect for spending time outdoors. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Ilopango, El Salvador
The warmest months (with the highest average high temperature) are March and April (33.4°C).
The month with the lowest average high temperature is October (29.7°C).
The month with the highest average low temperature is May (22.6°C).
The coldest month (with the lowest average low temperature) is January (19°C).
Average pressure
Ilopango, El Salvador
- Average pressure in January:
1013.6mbar - Average pressure in February:
1012.9mbar - Average pressure in March:
1012.6mbar - Average pressure in April:
1011.6mbar - Average pressure in May:
1011.3mbar - Average pressure in June:
1011.6mbar
- Average pressure in July:
1012.3mbar - Average pressure in August:
1011.9mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1011.3mbar - Average pressure in November:
1012.3mbar - Average pressure in December:
1013mbar
The month with the highest atmospheric pressure is January (1013.6mbar).
The months with the lowest atmospheric pressure are May and October (1011.3mbar).
Average wind speed
Ilopango, El Salvador
- Average wind speed in January:
8km/h - Average wind speed in February:
6.9km/h - Average wind speed in March:
6.6km/h - Average wind speed in April:
5.4km/h - Average wind speed in May:
4.7km/h - Average wind speed in June:
4.4km/h
- Average wind speed in July:
5km/h - Average wind speed in August:
4.7km/h - Average wind speed in September:
4.5km/h - Average wind speed in October:
5km/h - Average wind speed in November:
6.7km/h - Average wind speed in December:
7.3km/h
The windiest month (with the highest average wind speed) is January (8km/h).
The calmest month (with the lowest average wind speed) is June (4.4km/h).
Average humidity
Ilopango, El Salvador
The months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is March (61%).
Average rainfall
Ilopango, El Salvador
The wettest month (with the highest rainfall) is May (267mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days
Ilopango, El Salvador
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
26.9 days - Average rainfall days in June:
26.2 days
- Average rainfall days in July:
23.8 days - Average rainfall days in August:
24.6 days - Average rainfall days in September:
26.5 days - Average rainfall days in October:
23.9 days - Average rainfall days in November:
12.8 days - Average rainfall days in December:
2.8 days
The month with the highest number of rainy days is May (26.9 days).
The month with the least rainy days is January (2.3 days).
Average daylight / Average sunshine
Ilopango, El Salvador
- Average daylight in January:
11h and 24min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 48min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 36min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 30min - Average daylight in December:
11h and 18min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in January:
7h and 42min - Average sunshine in February:
9h and 0min - Average sunshine in March:
10h and 30min - Average sunshine in April:
11h and 18min - Average sunshine in May:
10h and 42min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 0min - Average sunshine in October:
8h and 18min - Average sunshine in November:
8h and 54min - Average sunshine in December:
7h and 42min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days
Ilopango, El Salvador
- Average sunshine days in January:
27.7 days - Average sunshine days in February:
23 days - Average sunshine days in March:
22.3 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
2.7 days - Average sunshine days in June:
2.8 days
- Average sunshine days in July:
5.3 days - Average sunshine days in August:
5.4 days - Average sunshine days in September:
2.5 days - Average sunshine days in October:
5.5 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
27.1 days
The month with the most sunshine days is January (27.7 days).
The month with the least sunshine days is September (2.5 days).
Average UV index
Ilopango, El Salvador
The months with the highest UV index are January, February, March and April (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover
Ilopango, El Salvador
The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility
Ilopango, El Salvador
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are June, August, September and October (8km).





