Climate and monthly weather forecastAcajutla, El Salvador
Acajutla, El Salvador - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. The month with the least rainfall in Acajutla, El Salvador, is January, when the rain falls for 2 days and typically collects 1mm (0.04") of precipitation. The month with the most rainfall in Acajutla is October, when the rain falls for 22 days and typically aggregates up to 160mm (6.3") of precipitation.
Climate and monthly weather forecast
The climate of Acajutla
Located on the Pacific coast of El Salvador, Acajutla experiences a tropical savannah climate, often referred to as Aw in the Köppen climate classification. This predominance is marked by a wet-dry seasonal variance that shows up in both temperature and precipitation trends.Acajutla's climate is defined by a nearly uniform high temperature fluctuating from 29.2°C (84.6°F) to 30.6°C (87.1°F) throughout the year. The cooler temperatures don't lag far behind, consistently ranging from 23.8°C (74.8°F) to 26.4°C (79.5°F). This leads to relatively stable year-round temperatures, providing a sense of predictability when it comes to planning for weather in Acajutla.
Relative humidity varies slightly over the year, with the values fluctuating between 65% to 76%. Wind speeds remain gentle to moderate, averaging between 9km/h (5.6mph) to 13.1km/h (8.1mph), with the highest gusts not exceeding 19.5km/h (12.1mph). While the cloud cover percentage increases from 13% to a peak of 37% during the wet season, it returns to minimum levels during the dry period.
A sharp distinction is noticeable in the precipitation trends. During the rainy season, from April to October, rainfall can reach up to 160mm (6.3") monthly, with nearly 26 rainy days in a month, particularly between May to September. During the dry season, from November to March, rainfall drops significantly, with a record of only 1mm (0.04") in February, culminating in a clear demarcation between the wet and dry periods.
The best time to visit Acajutla
Considering the climatic variables, the optimal time to visit Acajutla would be during the drier months, specifically between November and March. During this period, rainfall is minimal, standing at a maximum of 6mm (0.24") in March and as low as 1mm (0.04") in February, with only 2 to 3 rainy days in a month. Furthermore, the temperatures are comfortable, ranging from a high of 30.1°C (86.2°F) to a low of 24.4°C (75.9°F).Sunshine hours also lean on the higher side during these months, registering close to 8.6 to 11.5 hours per day. Additionally, the UV index remains at a constant 7, making it crucial for visitors to wear sunscreen and hats during their visit. Sea temperatures are comfortable as well, circling around 28.5°C (83.3°F) to 30°C (86°F), inviting for swimming or other water-based activities.
The worst time to visit Acajutla
The months between April and October register the highest rainfall, making them less suitable for a visit to Acajutla. Specifically, the period from May to September proves challenging due to the increased precipitation levels, reaching up to 160mm (6.3") in September alone, with an average of 25 rainy days in a month.Furthermore, temperatures soar up during these months, with high temperatures up to 30.6°C (87.1°F) and lows of 26.4°C (79.5°F). Coupled with high relative humidity levels, it could lead to discomfort for some visitors.
Spring weather in Acajutla
Spring season in Acajutla, spanning from March to May, marks a transition from the dry to rainy season. Rainfall begins to increase in March, jumping from 6mm (0.24") to 28mm (1.1") in April and eventually reaching 125mm (4.92") by May. With this increase in precipitation, the number of rainy days rises from roughly 7 in March to 14.5 in April and soars up to 25.3 by May.Temperatures remain uniformly high throughout spring. The lowest temperature during spring ranges from 25°C (77°F) to 26.4°C (79.5°F), whereas the highest temperature slightly fluctuates from 30.1°C (86.2°F) in March to 30.4°C (86.7°F) in May.
Summer weather in Acajutla
Summer, which happens from June to August in Acajutla, falls within the rainy season. Rainfall peaks, registering between 84mm (3.31") to 138mm (5.43") during these months, with June and August witnessing more than 25 days of precipitation.Notwithstanding the rainfall, temperatures remain consistently high, with an average high temperature of 30.2°C (86.4°F) in June, dropping slightly to 30°C (86°F) and 29.2°C (84.6°F) in July and August, respectively.
Autumn weather in Acajutla
Autumn in Acajutla, extending from September to November, experiences a reduction in rainfall from 160mm (6.3") in September to 17mm (0.67") by November. November marks the end of the rainy season, with the number of rainy days declining from 25.7 in September to merely 8.7 by November.Temperatures continue to be uniform across the season, with maximum temperatures varying from 29.2°C (84.6°F) in September to 30.1°C (86.2°F) by November.
Winter weather in Acajutla
The winter season in Acajutla is characterized by little to no rainfall and comfortable temperatures. December marks the driest month, with just 3mm (0.12") of rainfall recorded and an average of 2.6 rainy days. High temperatures in December and January rest around 30.1°C (86.2°F), declining to 29.8°C (85.6°F) in February, making the winter months pleasantly warm. The lower temperatures range from 24.4°C (75.9°F) in December to 23.8°C (74.8°F) in February. With such conditions, winter can be a delightful time to visit Acajutla.Weather in January
Coming off from December, January kicks in with a subtly lower daytime temperature, which marks the cool season in Acajutla, El Salvador. The city experiences a slight drop in humidity, signifying a somewhat dry atmosphere. Daylight is relatively short, making the days seem shorter and the nights longer. Weather in January »Weather in February
The weather forecast for February shows a slow and steady rise in temperature from January. Despite the increase, conditions remain cool and less oppressive. With respect to the rain forecast, precipitation levels increase mildly to 4mm (0.16") across three days. Weather in February »Weather in March
Moving further into the year, the weather in March shows a clear trend towards warmer conditions. The temperature increase, coupled with sustained humidity, presents a moist and somewhat sultry environment. There is a marked rise in rainfall, reaching 6mm (0.24"), spread over six days in the month. Weather in March »Weather in April
April ushers in a notable shift in the climatic conditions of Acajutla, characterised by warm tropical temperatures. Rainfall dramatically spikes to an average of 28mm (1.1"), significantly higher than previous months. The high humidity contributes to a balmy atmosphere, while the increased cloud coverage signals the balance shift towards the wet season. Weather in April »Weather in May
May is the maiden month of the wet season in Acajutla. The rainfall peaks dramatically to a hefty 125mm (4.92"), dispersed over an average of 25 days. The overall atmosphere is predominantly rainy and humid, providing a stark contrast to the dry start of the year. Weather in May »Weather in June
June maintains the established rhythm of a wet season with high rainfall averaging 138mm (5.43") throughout the month. Despite a small increment in temperature, the combination of high humidity and continuing cloud coverage gives an impression of a climate remaining in good balance. Weather in June »Weather in July
In contrast to the preceding months, July brings a drop in rainfall to 84mm (3.31"), offering some respite from the peak wet period. Despite the easing of rainfall, the city remains quite cloudy, maintaining a damp environment. It is still a relatively rainy month prolonging the wet season trend. Weather in July »Weather in August
August showcases a reintroduction to higher rainfall records, averaging around 125mm (4.92"). The month extends the trend of the prevailing wet season in Acajutla. As the wet season approaches its tail-end, the city gets even fewer hours of sunlight. Weather in August »Weather in September
September is the wettest month in Acajutla, with the highest recorded rainfall of 140mm (5.51") across approximately 25 days. The wet season continues in full swing with limited sunshine hours and high humidity, soothing the warm air. Weather in September »Weather in October
As October rolls in, the climate becomes slightly drier with a notable reduction in rainfall to 160mm (6.3"). Despite the decrease, showers remain frequent. While most of the city still sees cloudy skies, an increased number of clear days offers a glimpse of sunnier times. Weather in October »Weather in November
November signals the end of the wet season in Acajutla. Rainfall drops dramatically to 17mm (0.67") over a mere eight days, presenting a stark contrast to the preceding months. Despite the easing of downpours, skies remain partly cloudy with moderate sunshine hours. Weather in November »Weather in December
December concludes the year with a return to significantly drier conditions. The rainfall experienced is minimal at 3mm (0.12") across just over two days. Lastly, the month sees a drop in both day and night temperatures, maintaining a comfortably cool ambiance. Weather in December »Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The months with the lowest humidity are January and March, with an average relative humidity of 65%.
The month with the least rainfall in Acajutla, El Salvador, is January, when the rain falls for 2 days and typically collects 1mm (0.04") of precipitation.
In Acajutla, El Salvador, during the entire year, the rain falls for 183.3 days and collects up to 831mm (32.72") of precipitation.
January is the month with the coldest seawater, with an average sea temperature of 27.7°C (81.9°F).
The months with the least sunshine in Acajutla, El Salvador, are January and December, with an average of 7.7h of sunshine.
The months with the highest UV index in Acajutla, El Salvador, are January through December, with an average maximum UV index of 7.
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
The highest temperatures in Acajutla are recorded in April, with averages reaching a high of 30.6°C (87.1°F) and a low of 26.3°C (79.3°F).
April has the most sunshine of the year in Acajutla, El Salvador, with an average of 11.5h of sunshine.
June and August, with an average sea temperature of 30.2°C (86.4°F), are months with the warmest seawater.
June has the longest days of the year in Acajutla, with an average of 12h and 54min of daylight.
September and October mark Acajutla's lowest temperatures, averaging a high-temperature of 29.2°C (84.6°F).
The months with the highest humidity in Acajutla, El Salvador, are September and October, with an average relative humidity of 76%.
The month with the most rainfall in Acajutla is October, when the rain falls for 22 days and typically aggregates up to 160mm (6.3") of precipitation.
The month with the shortest days in Acajutla, El Salvador, is December, with an average of 11h and 18min of daylight.
Acajutla, El Salvador, does not utilize Daylight Saving Time (DST). CST timezone is used over the entire year.
Average temperature
Acajutla, El Salvador
The warmest month (with the highest average high temperature) is April (30.6°C).
The months with the lowest average high temperature are September and October (29.2°C).
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (23.8°C).
Average pressure
Acajutla, El Salvador
- Average pressure in January:
1013mbar - Average pressure in February:
1012.5mbar - Average pressure in March:
1012.3mbar - Average pressure in April:
1011.4mbar - Average pressure in May:
1011.1mbar - Average pressure in June:
1011.3mbar
- Average pressure in July:
1012mbar - Average pressure in August:
1011.6mbar - Average pressure in September:
1011.2mbar - Average pressure in October:
1011mbar - Average pressure in November:
1011.8mbar - Average pressure in December:
1012.5mbar
The month with the highest atmospheric pressure is January (1013mbar).
The month with the lowest atmospheric pressure is October (1011mbar).
Average wind speed
Acajutla, El Salvador
- Average wind speed in January:
13.1km/h - Average wind speed in February:
12.3km/h - Average wind speed in March:
12.3km/h - Average wind speed in April:
10.3km/h - Average wind speed in May:
9.2km/h - Average wind speed in June:
9km/h
- Average wind speed in July:
9.6km/h - Average wind speed in August:
9.8km/h - Average wind speed in September:
9.4km/h - Average wind speed in October:
9.9km/h - Average wind speed in November:
11.4km/h - Average wind speed in December:
11.9km/h
The windiest month (with the highest average wind speed) is January (13.1km/h).
The calmest month (with the lowest average wind speed) is June (9km/h).
Average humidity
Acajutla, El Salvador
The months with the highest relative humidity are September and October (76%).
The months with the lowest relative humidity are January and March (65%).
Average rainfall
Acajutla, El Salvador
The wettest month (with the highest rainfall) is October (160mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days
Acajutla, El Salvador
- Average rainfall days in January:
2 days - Average rainfall days in February:
3.1 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
25.3 days - Average rainfall days in June:
25.8 days
- Average rainfall days in July:
22.7 days - Average rainfall days in August:
24.4 days - Average rainfall days in September:
25.7 days - Average rainfall days in October:
22 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
2.6 days
The month with the highest number of rainy days is June (25.8 days).
The month with the least rainy days is January (2 days).
Average sea temperature
Acajutla, El Salvador
The best months for swimming (with the highest average sea temperature) are June and August (30.2°C).
The coldest month (with the lowest average sea temperature) is January (27.7°C).
Average daylight / Average sunshine
Acajutla, 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 42min - Average sunshine in March:
10h and 6min - Average sunshine in April:
11h and 30min - Average sunshine in May:
11h and 0min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 36min - Average sunshine in October:
8h and 36min - Average sunshine in November:
8h and 42min - Average sunshine in December:
7h and 42min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).
Average sunshine days
Acajutla, El Salvador
- Average sunshine days in January:
27.9 days - Average sunshine days in February:
24 days - Average sunshine days in March:
22.8 days - Average sunshine days in April:
13.5 days - Average sunshine days in May:
3.3 days - Average sunshine days in June:
2.8 days
- Average sunshine days in July:
5.4 days - Average sunshine days in August:
4.3 days - Average sunshine days in September:
2.4 days - Average sunshine days in October:
6.6 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
28.1 days
The month with the most sunshine days is December (28.1 days).
The month with the least sunshine days is September (2.4 days).
Average UV index
Acajutla, El Salvador
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Acajutla, El Salvador
The month with the most cloud cover is September (Cloud cover 37).
The months with the least cloud cover are January and December (Cloud cover 13).
Average visibility
Acajutla, El Salvador
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
