Climate and monthly weather forecastSanto Tomás, El Salvador
Climate and monthly weather forecast
Weather in January
January, like December, is another hot winter month in Santo Tomás, El Salvador, with an average temperature varying between 31.2°C (88.2°F) and 19°C (66.2°F). The advent of January brings an average high-temperature of a still hot 31.2°C (88.2°F), almost identical to the preceding month. Weather in January »Weather in February
The last month of the winter, February, is another hot month in Santo Tomás, El Salvador, with an average temperature varying between 20°C (68°F) and 32.4°C (90.3°F). As Santo Tomás transitions from January to February, the average high-temperatures adjust to a still hot 32.4°C (90.3°F), nearly the same as the previous 31.2°C (88.2°F). Weather in February »Weather in March
March, the first month of the spring in Santo Tomás, is still a tropical month, with an average temperature fluctuating between 33.4°C (92.1°F) and 20.7°C (69.3°F). The peak of Santo Tomás's temperatures is noted during March and April, averaging a high-temperature of 33.4°C (92.1°F). In March, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Weather in March »Weather in April
April, like March, is another hot spring month in Santo Tomás, El Salvador, with an average temperature ranging between max 33.4°C (92.1°F) and min 22.5°C (72.5°F). Santo Tomás witnesses its highest average temperatures during March and April, peaking at 33.4°C (92.1°F). The average heat index in April is estimated at a blistering 43°C (109.4°F). Weather in April »Weather in May
The last month of the spring, May, is another tropical month in Santo Tomás, El Salvador, with an average temperature fluctuating between 22.6°C (72.7°F) and 31.8°C (89.2°F). The start of May marks an average high-temperature of a still hot 31.8°C (89.2°F), hardly distinguishable from the conditions in April. Weather in May »Weather in June
June, the first month of the summer in Santo Tomás, is still a hot month, with an average temperature varying between 30.8°C (87.4°F) and 21.7°C (71.1°F). June's average high-temperature is a still hot 30.8°C (87.4°F), maintaining a close comparison with May's 31.8°C (89.2°F). Weather in June »Weather in July
July, the same as June, in Santo Tomás, El Salvador, is another hot summer month, with an average temperature varying between 31.9°C (89.4°F) and 21.3°C (70.3°F). With the transition into July, Santo Tomás notes an average high-temperature of a still hot 31.9°C (89.4°F), closely resembling June. Weather in July »Weather in August
August, the last month of the summer in Santo Tomás, is also a hot month, with an average temperature varying between 31.6°C (88.9°F) and 21.4°C (70.5°F). The ushering in of August brings an average high-temperature of a still tropical 31.6°C (88.9°F), closely mirroring the 31.9°C (89.4°F) of July. Weather in August »Weather in September
The first month of the autumn, September, is still a hot month in Santo Tomás, El Salvador, with an average temperature varying between 20.9°C (69.6°F) and 30.5°C (86.9°F). Entering September, Santo Tomás's average high-temperature reads a still hot 30.5°C (86.9°F), indicating a close resemblance to the previous month's climate. Weather in September »Weather in October
October, like September, in Santo Tomás, El Salvador, is a moderately hot autumn month, with an average temperature varying between 29.7°C (85.5°F) and 20.5°C (68.9°F). The coldest period tends to be October, when average temperatures fluctuate between a high of 29.7°C (85.5°F) and a low of 20.5°C (68.9°F). The heat index value for October is estimated at a sweltering 37°C (98.6°F). Weather in October »Weather in November
The last month of the autumn, November, is a hot month in Santo Tomás, El Salvador, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 19.5°C (67.1°F). November ushers in an average high-temperature of a hot 30.3°C (86.5°F), aligning closely with the preceding month. Weather in November »Weather in December
The first month of the winter, December, is still a hot month in Santo Tomás, El Salvador, with an average temperature fluctuating between 19.1°C (66.4°F) and 30.8°C (87.4°F). Santo Tomás's average high-temperature in December is a still tropical 30.8°C (87.4°F), indicating a subtle variation from November. Weather in December »Updated: Jan 30, 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
January is the month with the least rainfall in Santo Tomás, El Salvador. Rain falls for 2.3 days and accumulates 2mm (0.08") of precipitation.
Throughout the year, in Santo Tomás, there are 196.7 rainfall days, and 1216mm (47.87") of precipitation is accumulated.
January and December, with an average of 7.7h of sunshine, are months with the least sunshine.
The months with the highest UV index in Santo Tomás are January through April, with an average maximum UV index of 7.
The warmest period in Santo Tomás falls in March and April, when the average high-temperature reaches 33.4°C (92.1°F).
The least humid month is March, with an average relative humidity of 61%.
April has the most sunshine of the year in Santo Tomás, El Salvador, with an average of 11.3h of sunshine.
The month with the most rainfall is May, when the rain falls for 26.9 days and typically aggregates up to 267mm (10.51") of precipitation.
The months with the lowest UV index in Santo Tomás, El Salvador, are May through December, with an average maximum UV index of 6.
The month with the longest days in Santo Tomás, El Salvador, is June, with an average of 12h and 54min of daylight.
The months with the highest humidity in Santo Tomás are September and October, with an average relative humidity of 82%.
October, known for its average high temperature of 29.7°C (85.5°F) and an average low temperature of 20.5°C (68.9°F), is the coldest month in Santo Tomás, El Salvador.
The month with the shortest days in Santo Tomás, El Salvador, is December, with an average of 11h and 18min of daylight.
Santo Tomás does not utilize Daylight Saving Time (DST). CST timezone is used over the entire year.
Average temperature
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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
Santo Tomás, 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).
