São Mateus climate
São Mateus (Espírito Santo, Brazil) has a tropical savanna (dry winter) climate (Köppen Aw). The average temperature over the year is 25 °C76 °F, and about 1,195 mm47 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
São Mateus climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3187 | 2272 | 2679 | 1154.5 |
| Feb | 3188 | 2272 | 2780 | 933.7 |
| Mar | 3187 | 2272 | 2680 | 1254.9 |
| Apr | 3086 | 2170 | 2678 | 1034.1 |
| May | 2883 | 1967 | 2475 | 742.9 |
| Jun | 2781 | 1865 | 2373 | 632.5 |
| Jul | 2780 | 1763 | 2272 | 622.4 |
| Aug | 2781 | 1864 | 2272 | 582.3 |
| Sep | 2984 | 1865 | 2475 | 502.0 |
| Oct | 3086 | 2068 | 2577 | 1044.1 |
| Nov | 3086 | 2170 | 2578 | 1917.5 |
| Dec | 3087 | 2271 | 2679 | 1576.2 |
| Year | 3188 | 1763 | 2576 | 1,19547 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 54% | 6.7 | 13:08 |
| Feb | 77% | 50% | 6.6 | 12:44 |
| Mar | 79% | 51% | 5.9 | 12:15 |
| Apr | 80% | 52% | 5.0 | 11:41 |
| May | 80% | 56% | 4.1 | 11:15 |
| Jun | 80% | 55% | 3.8 | 11:01 |
| Jul | 79% | 52% | 4.0 | 11:06 |
| Aug | 76% | 50% | 4.7 | 11:29 |
| Sep | 73% | 50% | 5.3 | 12:01 |
| Oct | 73% | 57% | 5.6 | 12:33 |
| Nov | 78% | 67% | 5.6 | 13:02 |
| Dec | 79% | 61% | 6.2 | 13:15 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of São Mateus is like
The warmest month is February, with an average high of 31 °C88 °F and a low of 22 °C72 °F. The coldest is July, when highs average 27 °C80 °F and lows 17 °C63 °F. Seasonal differences are small — just 4.7 °C8.4 °F between the warmest and the coolest month.
It is wet, with about 1,195 mm47 in of precipitation per year. The wettest three-month stretch is November–January, which brings 39% of the annual total. The wettest month is November (191 mm7.5 in), the driest is September (50 mm2.0 in).
Relative humidity ranges from 73% in September to 80% in June. The clearest skies (lowest average cloud amount, 50%) are typical of August. Average wind speed near the ground ranges from 2 km/h (1 mph) in April to 3 km/h (2 mph) in October. Daylight lasts from about 11.0 hours in June to 13.2 hours in December.
Best time to visit São Mateus
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September: average highs of 27 °C80 °F to 29 °C84 °F with 50 mm2.0 in to 74 mm2.9 in of precipitation per month.
The most challenging month is November, which is very wet (191 mm7.5 in) and humid (78% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for São Mateus
- Wetter months (October–January, March and April) — highs 3086 to 31 °C87 °F, lows 2068 to 22 °C72 °F, about 133 mm5.2 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Drier months (February, May–September) — highs 2780 to 31 °C88 °F, lows 1763 to 22 °C72 °F, about 67 mm2.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How São Mateus compares
Compared with Linhares, about 78 km to the south, São Mateus has practically the same average temperature and receives a similar amount of precipitation.
Of the 223 places in Brazil covered by World Climates, São Mateus is the 78th warmest by annual mean temperature and the 168th wettest by annual precipitation. See all of them on the Brazil climate page.
Places in other countries with the most similar temperature and rainfall pattern (seasons shifted for the other hemisphere where needed): Avarua (Cook Islands, Af), Nukualofa (Tonga, Af) and West Palm Beach (United States, Am).
Nearby places
- Linhares 78 km · 25 °C76 °F · 1,242 mm49 in
- Colatina 122 km · 25 °C76 °F · 1,081 mm43 in
- Teixeira de Freitas 132 km · 24 °C76 °F · 1,147 mm45 in
- Serra 164 km · 24 °C76 °F · 1,204 mm47 in
- Cariacica 181 km · 24 °C76 °F · 1,244 mm49 in
- Vila Velha 185 km · 25 °C76 °F · 1,004 mm40 in
- Teófilo Otoni 199 km · 24 °C75 °F · 970 mm38 in
- Governador Valadares 221 km · 25 °C77 °F · 986 mm39 in
Frequently asked questions
What is the warmest month in São Mateus?
February is the warmest month in São Mateus, with an average high of 31 °C (88 °F) and an average low of 22 °C (72 °F).
What is the coldest month in São Mateus?
July is the coldest month, with an average high of 27 °C (80 °F) and an average low of 17 °C (63 °F).
When does it rain the most in São Mateus?
November is the wettest month with about 191 mm (7.5 in) of precipitation; September is the driest with about 50 mm (2.0 in).
What is the best time to visit São Mateus?
Judging by long-term averages, the most comfortable months are May–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.