Climate and monthly weather forecastSão Mateus, Brazil
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot summer month in São Mateus, Brazil, with an average temperature ranging between min 22.9°C (73.2°F) and max 29.7°C (85.5°F). São Mateus, Brazil, starts January with an average high-temperature of a still warm 29.7°C (85.5°F), hinting at a minimal fluctuation from December. Weather in January »Weather in February
The last month of the summer, February, is a hot month in São Mateus, Brazil, with an average temperature fluctuating between 23.2°C (73.8°F) and 30.1°C (86.2°F). The average temperatures reach their apex in February, averaging 30.1°C (86.2°F) at the high end and 23.2°C (73.8°F) at the low end. During February, the heat index is appraised at a torrid 38°C (100.4°F). Weather in February »Weather in March
March, the first month of the autumn in São Mateus, is still a warm month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 29.8°C (85.6°F). São Mateus marks the onset of March with an average high-temperature of a moderately hot 29.8°C (85.6°F), a subtle shift from February's 30.1°C (86.2°F). Weather in March »Weather in April
April, like March, in São Mateus, Brazil, is a moderately hot autumn month, with an average temperature varying between 28.4°C (83.1°F) and 22.1°C (71.8°F). The beginning of April records an average high-temperature of a still warm 28.4°C (83.1°F), marking a negligible difference from March's 29.8°C (85.6°F). Weather in April »Weather in May
The last month of the autumn, May, is also a moderately hot month in São Mateus, Brazil, with an average temperature varying between 20.7°C (69.3°F) and 27.1°C (80.8°F). With the arrival of May, São Mateus's average high-temperature registers at a still warm 27.1°C (80.8°F), indicating a subtle variation from the previous month. Weather in May »Weather in June
The first month of the winter, June, is still a warm month in São Mateus, Brazil, with an average temperature ranging between max 26°C (78.8°F) and min 19.8°C (67.6°F). June's average high-temperature stands at a still moderately hot 26°C (78.8°F), showing little deviation from May's 27.1°C (80.8°F). Weather in June »Weather in July
July, like June, in São Mateus, Brazil, is another warm winter month, with temperature in the range of an average low of 19.2°C (66.6°F) and an average high of 25.7°C (78.3°F). Temperature readings reach their annual highs in July, averaging 25.7°C (78.3°F) and a minimum average of 19.2°C (66.6°F). Weather in July »Weather in August
The last month of the winter, August, is another warm month in São Mateus, Brazil, with an average temperature varying between 19.3°C (66.7°F) and 25.9°C (78.6°F). São Mateus experiences a subtle adjustment in high-temperatures to a still warm 25.9°C (78.6°F) with the onset of August, maintaining near parity with July's 25.7°C (78.3°F). Weather in August »Weather in September
The first month of the spring, September, is still a warm month in São Mateus, Brazil, with an average temperature fluctuating between 20.2°C (68.4°F) and 26.6°C (79.9°F). The shift into September uncovers an average high-temperature of a still moderately hot 26.6°C (79.9°F), subtly different from the previous month. Weather in September »Weather in October
October, the same as September, is another warm spring month in São Mateus, Brazil, with an average temperature fluctuating between 21.5°C (70.7°F) and 27.6°C (81.7°F). With the onset of October, São Mateus's average high-temperature clocks in at a still moderately hot 27.6°C (81.7°F), showing a minor fluctuation from the previous month. Weather in October »Weather in November
November, the last month of the spring in São Mateus, is also a moderately hot month, with temperature in the range of an average high of 28°C (82.4°F) and an average low of 22°C (71.6°F). The introduction of November notes a subtle temperature variation to a still moderately hot 28°C (82.4°F) from October's 27.6°C (81.7°F). Weather in November »Weather in December
The first month of the summer, December, is still a warm month in São Mateus, Brazil, with an average temperature ranging between max 28.9°C (84°F) and min 22.8°C (73°F). In December, São Mateus's weather conditions record an average high-temperature of a still moderately hot 28.9°C (84°F), demonstrating little divergence from the preceding month. Weather in December »Updated: Feb 2, 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
In São Mateus, during the entire year, the rain falls for 194.6 days and collects up to 770mm (30.31") of precipitation.
January through March and December, with an average maximum UV index of 7, are months with the highest UV index in São Mateus.
During the warmest month in São Mateus, February, temperatures average a high of 30.1°C (86.2°F) and a low of 23.2°C (73.8°F).
With an average of 9h of sunshine, February has the most sunshine of the year in São Mateus, Brazil.
The months with the highest humidity are March, April, June, November and December, with an average relative humidity of 82%.
The months with the lowest UV index in São Mateus are April through November, with an average maximum UV index of 6.
With an average of 11h and 0min of daylight, June has the shortest days of the year in São Mateus, Brazil.
In São Mateus, Brazil, the lowest temperatures are generally noted in July, averaging a high of 25.7°C (78.3°F) and a low of 19.2°C (66.6°F).
The least humid month is September, with an average relative humidity of 76%.
The month with the least rainfall in São Mateus, Brazil, is September, when the rain falls for 11.1 days and typically collects 17mm (0.67") of precipitation.
The month with the least sunshine in São Mateus, Brazil, is October, with an average of 7h of sunshine.
The month with the most rainfall in São Mateus, Brazil, is December, when the rain falls for 20 days and typically aggregates up to 143mm (5.63") of precipitation.
The month with the longest days in São Mateus is December, with an average of 13h and 12min of daylight.
São Mateus does not observe Daylight Saving Time (DST). -03 timezone is used over the entire year.
Average temperature
São Mateus, Brazil
The warmest month (with the highest average high temperature) is February (30.1°C).
The month with the lowest average high temperature is July (25.7°C).
The month with the highest average low temperature is February (23.2°C).
The coldest month (with the lowest average low temperature) is July (19.2°C).
Average pressure
São Mateus, Brazil
- Average pressure in January:
1013.8mbar - Average pressure in February:
1013.7mbar - Average pressure in March:
1013.4mbar - Average pressure in April:
1014.9mbar - Average pressure in May:
1017mbar - Average pressure in June:
1019.3mbar
- Average pressure in July:
1020.5mbar - Average pressure in August:
1020.2mbar - Average pressure in September:
1018.6mbar - Average pressure in October:
1015.6mbar - Average pressure in November:
1013.4mbar - Average pressure in December:
1012.8mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).
Average wind speed
São Mateus, Brazil
- Average wind speed in January:
11.4km/h - Average wind speed in February:
10.3km/h - Average wind speed in March:
10.1km/h - Average wind speed in April:
9.7km/h - Average wind speed in May:
9.8km/h - Average wind speed in June:
9.8km/h
- Average wind speed in July:
9.9km/h - Average wind speed in August:
11.1km/h - Average wind speed in September:
13.1km/h - Average wind speed in October:
13.2km/h - Average wind speed in November:
12.7km/h - Average wind speed in December:
12.3km/h
The windiest month (with the highest average wind speed) is October (13.2km/h).
The calmest month (with the lowest average wind speed) is April (9.7km/h).
Average humidity
São Mateus, Brazil
The months with the highest relative humidity are March, April, June, November and December (82%).
The month with the lowest relative humidity is September (76%).
Average rainfall
São Mateus, Brazil
The wettest month (with the highest rainfall) is December (143mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days
São Mateus, Brazil
- Average rainfall days in January:
18.1 days - Average rainfall days in February:
17.3 days - Average rainfall days in March:
20.7 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
19.9 days - Average rainfall days in December:
20 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is September (11.1 days).
Average daylight / Average sunshine
São Mateus, Brazil
- Average daylight in January:
13h and 6min - Average daylight in February:
12h and 42min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 42min - Average daylight in May:
11h and 12min - Average daylight in June:
11h and 0min
- Average daylight in July:
11h and 6min - Average daylight in August:
11h and 30min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 30min - Average daylight in November:
13h and 0min - Average daylight in December:
13h and 12min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in January:
8h and 30min - Average sunshine in February:
9h - Average sunshine in March:
8h and 18min - Average sunshine in April:
7h and 54min - Average sunshine in May:
7h and 48min - Average sunshine in June:
8h
- Average sunshine in July:
8h and 6min - Average sunshine in August:
7h and 48min - Average sunshine in September:
8h - Average sunshine in October:
7h - Average sunshine in November:
7h and 54min - Average sunshine in December:
8h and 30min
The month with the most sunshine is February (Average sunshine: 9h).
The month with the least sunshine is October (Average sunshine: 7h).
Average sunshine days
São Mateus, Brazil
- Average sunshine days in January:
10.1 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
15.9 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
15.3 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
11.6 days - Average sunshine days in November:
8 days - Average sunshine days in December:
9.2 days
The month with the most sunshine days is May (15.9 days).
The month with the least sunshine days is March (7.8 days).
Average UV index
São Mateus, Brazil
The months with the highest UV index are January, February, March and December (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October and November (UV index 6).
Average cloud cover
São Mateus, Brazil
The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is February (Cloud cover 32).
Average visibility
São Mateus, Brazil
The months with the highest visibility are February, August, September and October (10km).
The months with the lowest visibility are January, March, April, May, June, July, November and December (9km).
