Climate and monthly weather forecastChalchuapa, El Salvador
Climate and monthly weather forecast
The climate of Chalchuapa
Chalchuapa, located in El Salvador, is distinguished by a Tropical wet and dry or savanna-type climate, in accord with the Köppen climate classification denoted as Aw. Throughout the calendar year, this climate manifests itself through the notable counting of various weather parameters.Temperature observations reveal an average high ranging from 27.9°C (82.2°F) in October to 33.2°C (91.8°F) observed in April. Correspondingly, the average low temperature values oscillate from 16.3°C (61.3°F) in January up to 20.7°C (69.3°F) during May. The figures present minimal fluctuation thus indicating the year-round warmth inherent in tropical climates.
Humidity is another factor that affects the climate in Chalchuapa. The relative humidity levels vary moderately, with the highest recorded percentage being 86% in October and the lowest, 63%, noticeable during March.
Rainfall pattern makes it evident why this area is classified as having a tropical wet and dry climate. There is a marked difference from March to May, with rainfall showing a serious spike. From a mere 9mm (0.35") in March, it dramatically jumps to 198mm (7.8") in May, marking the start of the rainy season that lasts until October. Days with rain follow a similar pattern, starting with 6.7 days of rainfall in March to 23.7 by May.
The best time to visit Chalchuapa
Aiming to explore Chalchuapa in the most comfortable climate conditions, it is suggested to plan a trip between January and March. During this period, temperature is moderate, humidity is lower than the rest of the year, and the amount of rainfall experienced is the smallest, with only 2mm (0.08") of precipitation in January and 3mm (0.12") in February. Subsequently, the typical number of sunny days is at a peak level during these months, ushering in enhanced visibility and making it an ideal time to appreciate the scenic beauty of this region.The worst time to visit Chalchuapa
While acknowledging the subjective nature of what may be considered the 'worst' time, a weather perspective would indicate that the least favorable period to visit Chalchuapa is between May and October. This span is marked by the onset of the rainy season, thus leading to increased precipitation, higher humidity, and a reduced number of sunny days. The area averages over 140mm (5.51") of rainfall during these months, and the number of sunshine days drops drastically, which may restrict outdoor activities.Spring weather in Chalchuapa
Chalchuapa experiences its spring season from March to May. The area undergoes a rapid transition from a dry to wet season during this period. Average high temperatures escalate from 32.4°C (90.3°F) in March to 33.2°C (91.8°F) in April, followed by a dip to 31.1°C (88°F) in May. With the onset of the wet season, the rainfall level rises from 9mm (0.35") in March to an astounding 198mm (7.8") in May, with the corresponding increase in the number of rainfall days from 6.7 to 23.7.Summer weather in Chalchuapa
Chalchuapa's summer, occurring between June and August, is part of the rainy season. This period is characterized by the consistent high rainfall averaging above 140mm (5.51") per month, along with high temperatures that range from 29.7°C (85.5°F) to 30°C (86°F). Days of sunshine are comparatively fewer, and humidity levels remain high throughout this period.Autumn weather in Chalchuapa
Autumn in Chalchuapa stretches from September to November and continues to be heavy on precipitation. September and October record high rainfall figures of 141mm (5.55") and 190mm (7.48") respectively. However, November brings some relief from the rainy season, as the precipitation level drops sharply to 28mm (1.1"). High temperatures during the autumn range moderately from 27.9°C (82.2°F) in October to 28.4°C (83.1°F) in November.Winter weather in Chalchuapa
Between December and February, Chalchuapa experiences its winter or the dry part of the year. Precipitation levels drop considerably during these months, with December only recording 5mm (0.2") of rainfall. Despite being the cooler part of the year, high temperatures remain comfortably warm, ranging from 28°C (82.4°F) to 29.2°C (84.6°F). Winter also brings an increase in daily sunshine hours, making it an ideal time for outdoor activities.Weather in January
January's weather in Chalchuapa, El Salvador delivers an inviting balance between moderate temperature and humidity. Compared to December, both average high temperatures and low temperatures rise, up to 29.2°C (84.6°F) and 16.3°C (61.3°F) respectively. Weather in January »Weather in February
Entering February, Chalchuapa announces an eminent transition into more sunny days. Temperature edges up, offering a warmer, yet still comfortable, weather experience. This month's unique characteristic emerges as noticeably longer hours of daylight, with an average of 11.7 hours. Weather in February »Weather in March
The captivating weather progression continues in Chalchuapa with the advent of March. It serves as the final springboard into the local hot season, characterized by the highest temperatures of the year. Variances in daylight and temperature become most noticeable, such as the average high temperature rising to 32.4°C (90.3°F). Weather in March »Weather in April
In April, Chalchuapa's weather usually takes an intriguing turn. This month heralds the onset of the rainy season, transforming the previously arid landscape into a lush green vista. A remarkable uptick in downpours is observed from a mere 9mm (0.35") in March to 51mm (2.01") in April. Weather in April »Weather in May
Changing its course, May casts its reign with ceaseless showers and humidity in Chalchuapa. While the temperature settles in a comfortable range, the town receives the highest rainfall of the year, totaling 198mm (7.8"). Compared to April, the persistent showers and wet days prevail, setting a vastly different mood from the preceding sun-filled months. Weather in May »Weather in June
In June, Chalchuapa stirs a mix of weather spells, predominantly favoring cloudy and wet conditions. The climate remains largely consistent with May, both in terms of temperature and humidity. Standing unique is a high relative average humidity of 84% marking this month as the most humid of the year. Weather in June »Weather in July
Treading through July, Chalchuapa maintains a similar weather pattern as June, marked by continual rainfall and high humidity. Temperature ranges lower than the peak hot months, indicating a somewhat cooler season. A notable increase in the pressure to 1012.8 millibar occurs, which can influence diverse weather conditions. Weather in July »Weather in August
August is another month of showers, clouds, and high humidity in Chalchuapa. Distinctively, cloud coverage reaches its peak at 48%, while rainfall measures on the heavier side. There is a slight decline in temperature, consistent with the previous month, providing more outdoor exploration comfort. Weather in August »Weather in September
September in Chalchuapa is characterized by the highest amounts of cloud cover, recording at 57%. Following the trend from previous months, the weather stays wet with frequent bouts of rain, while the average high temperature creeps to a cooler 29.3°C (84.7°F). Weather in September »Weather in October
As October rolls in, Chalchuapa witnesses an intensification of rain showers. In this month's unique pattern, rainfall increases significantly from 141mm (5.55") in September to 190mm (7.48") in October, marking it as the second wettest month. Weather in October »Weather in November
November marks the commencement of a drier season in Chalchuapa. The month observes a stark decline in rain from 190mm (7.48") in October to 28mm (1.1") in November. In line with the change, daylight hours also rise, inviting more sun into the day. Weather in November »Weather in December
December rings in a clear shift towards dryer weather, with the lowest rainfall for the year at only 5mm (0.2"). The cloud percentage significantly lowers to 20%, letting in more sun into Chalchuapa's landscape. This weather transformation comes with a drop in temperature, making the climate cooler and more amenable for visitors. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Chalchuapa, El Salvador
The warmest month (with the highest average high temperature) is April (33.2°C).
The month with the lowest average high temperature is October (27.9°C).
The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure
Chalchuapa, El Salvador
- Average pressure in January:
1014.2mbar - Average pressure in February:
1013.4mbar - Average pressure in March:
1013.2mbar - Average pressure in April:
1012mbar - Average pressure in May:
1011.7mbar - Average pressure in June:
1011.9mbar
- Average pressure in July:
1012.8mbar - Average pressure in August:
1012.3mbar - Average pressure in September:
1011.8mbar - Average pressure in October:
1011.7mbar - Average pressure in November:
1012.9mbar - Average pressure in December:
1013.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are May and October (1011.7mbar).
Average wind speed
Chalchuapa, El Salvador
- Average wind speed in January:
9km/h - Average wind speed in February:
7.9km/h - Average wind speed in March:
7.5km/h - Average wind speed in April:
5.7km/h - Average wind speed in May:
4.7km/h - Average wind speed in June:
4.3km/h
- Average wind speed in July:
5.7km/h - Average wind speed in August:
4.7km/h - Average wind speed in September:
4.2km/h - Average wind speed in October:
5.3km/h - Average wind speed in November:
7.6km/h - Average wind speed in December:
8.1km/h
The windiest month (with the highest average wind speed) is January (9km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).
Average humidity
Chalchuapa, El Salvador
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).
Average rainfall
Chalchuapa, El Salvador
The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days
Chalchuapa, El Salvador
- Average rainfall days in January:
1.9 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
23.7 days - Average rainfall days in June:
25 days
- Average rainfall days in July:
21.8 days - Average rainfall days in August:
23.5 days - Average rainfall days in September:
24.7 days - Average rainfall days in October:
23.1 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
2.3 days
The month with the highest number of rainy days is June (25 days).
The month with the least rainy days is January (1.9 days).
Average daylight / Average sunshine
Chalchuapa, 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 30min - Average daylight in May:
12h and 48min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 54min - 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 36min - Average sunshine in February:
9h and 24min - Average sunshine in March:
10h and 12min - Average sunshine in April:
11h and 18min - Average sunshine in May:
10h and 18min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 36min - Average sunshine in September:
7h and 48min - Average sunshine in October:
7h and 12min - Average sunshine in November:
8h and 18min - Average sunshine in December:
7h and 36min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).
Average sunshine days
Chalchuapa, El Salvador
- Average sunshine days in January:
28.5 days - Average sunshine days in February:
23.3 days - Average sunshine days in March:
23.2 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
5.7 days - Average sunshine days in June:
4.1 days
- Average sunshine days in July:
7.4 days - Average sunshine days in August:
6.6 days - Average sunshine days in September:
3.7 days - Average sunshine days in October:
7.3 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
28.5 days
The months with the most sunshine days are January and December (28.5 days).
The month with the least sunshine days is September (3.7 days).
Average UV index
Chalchuapa, El Salvador
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
The month with the lowest UV index is September (UV index 5).
Average cloud cover
Chalchuapa, El Salvador
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility
Chalchuapa, El Salvador
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).





