São Mateus do Maranhão weather in August
In August, São Mateus do Maranhão sees average daytime highs of 34°C and overnight lows near 24°C, with 5 mm of rain across 1.2 wet days and about 11.9 hours of daylight. It is the 4th-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 72% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 11 h 48 min at the start of August to 11 h 54 min by month's end. Set against the rest of the year, August is São Mateus do Maranhão's 1st-clearest and 4th-windiest month. For the whole year in context, see São Mateus do Maranhão's year-round climate.
- Daytime high
- 34°
- 4th warmest
- Overnight low
- 24°
- 7th coldest
- Rainfall
- 5 mm
- 1.2 wet days
- Daylight
- 11 h 54 min
- 6:06 AM – 5:58 PM
- Cloud cover
- 33%
- 1st clearest
- Wind
- 9 km/h
- 4th windiest
- Solar energy
- 5.94 kWh/m²
- Travel score
- 3.7
- out of 10
São Mateus do Maranhão is settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 34°C through the month.
A typical August day in São Mateus do Maranhão reaches about 34°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 35°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 34 | 23 |
| 2 | 34 | 23 |
| 3 | 34 | 23 |
| 4 | 34 | 23 |
| 5 | 34 | 23 |
| 6 | 34 | 23 |
| 7 | 34 | 23 |
| 8 | 34 | 23 |
| 9 | 34 | 23 |
| 10 | 34 | 23 |
| 11 | 34 | 23 |
| 12 | 34 | 23 |
| 13 | 34 | 23 |
| 14 | 34 | 23 |
| 15 | 34 | 24 |
| 16 | 34 | 24 |
| 17 | 34 | 24 |
| 18 | 34 | 24 |
| 19 | 34 | 24 |
| 20 | 34 | 24 |
| 21 | 34 | 24 |
| 22 | 34 | 24 |
| 23 | 35 | 24 |
| 24 | 35 | 24 |
| 25 | 35 | 24 |
| 26 | 35 | 24 |
| 27 | 35 | 24 |
| 28 | 35 | 24 |
| 29 | 35 | 24 |
| 30 | 35 | 24 |
| 31 | 35 | 24 |
How August really feels in São Mateus do Maranhão
Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São Mateus do Maranhão weather by month
How August compares with the rest of the year at a glance. August is the 4th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 24° | 242 | 24.3 | 12.2 | 2.6 |
| Feb | 31° / 24° | 263 | 25 | 12.1 | 2.5 |
| Mar | 31° / 24° | 312 | 28.6 | 12 | 2.5 |
| Apr | 31° / 24° | 277 | 27.1 | 11.9 | 2.6 |
| May | 31° / 24° | 134 | 19.2 | 11.8 | 3.4 |
| Jun | 32° / 23° | 37 | 7.6 | 11.8 | 4.4 |
| Jul | 33° / 23° | 18 | 3.6 | 11.8 | 4.3 |
| Aug | 34° / 24° | 5 | 1.2 | 11.9 | 3.7 |
| Sep | 35° / 25° | 6 | 1.1 | 12 | 3.0 |
| Oct | 36° / 25° | 13 | 3.1 | 12.1 | 2.6 |
| Nov | 35° / 25° | 44 | 6.8 | 12.2 | 2.6 |
| Dec | 34° / 25° | 113 | 14.3 | 12.2 | 2.6 |
Cloud cover in August
The sky is clear or mostly clear about 72% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 8%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 92 | 92 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 92 | 91 | 91 | 91 | 91 | 91 | 91 | 90 | 90 | 91 | 91 | 91 | 91 | 91 | 92 | 92 | 93 | 93 | 93 | 93 | 93 | 93 |
| Cloudier (%) | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 92 | 8 |
| 2 | 92 | 8 |
| 3 | 92 | 8 |
| 4 | 92 | 8 |
| 5 | 93 | 7 |
| 6 | 93 | 7 |
| 7 | 93 | 7 |
| 8 | 93 | 7 |
| 9 | 93 | 7 |
| 10 | 92 | 8 |
| 11 | 91 | 9 |
| 12 | 91 | 9 |
| 13 | 91 | 9 |
| 14 | 91 | 9 |
| 15 | 91 | 9 |
| 16 | 91 | 9 |
| 17 | 90 | 10 |
| 18 | 90 | 10 |
| 19 | 91 | 9 |
| 20 | 91 | 9 |
| 21 | 91 | 9 |
| 22 | 91 | 9 |
| 23 | 91 | 9 |
| 24 | 92 | 8 |
| 25 | 92 | 8 |
| 26 | 93 | 7 |
| 27 | 93 | 7 |
| 28 | 93 | 7 |
| 29 | 93 | 7 |
| 30 | 93 | 7 |
| 31 | 93 | 7 |
Chance of precipitation in August
São Mateus do Maranhão gets around 5 mm of rain over 1.2 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 4% and peaks near 5% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Rain chance (%) | |
|---|---|
| 1 | 5 |
| 2 | 5 |
| 3 | 5 |
| 4 | 5 |
| 5 | 4 |
| 6 | 4 |
| 7 | 4 |
| 8 | 4 |
| 9 | 4 |
| 10 | 4 |
| 11 | 4 |
| 12 | 4 |
| 13 | 4 |
| 14 | 4 |
| 15 | 4 |
| 16 | 4 |
| 17 | 4 |
| 18 | 4 |
| 19 | 4 |
| 20 | 4 |
| 21 | 4 |
| 22 | 3 |
| 23 | 3 |
| 24 | 3 |
| 25 | 3 |
| 26 | 3 |
| 27 | 3 |
| 28 | 3 |
| 29 | 3 |
| 30 | 3 |
| 31 | 3 |
Humidity in August
Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the oppressive band about 53% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 |
| Muggy (%) | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 35 |
| Oppressive (%) | 48 | 49 | 49 | 50 | 51 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 51 | 52 | 52 | 52 | 53 | 53 | 54 | 55 | 56 | 58 | 59 | 60 | 60 | 61 | 61 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|
| 1 | 1 | 12 | 40 | 48 |
| 2 | 1 | 11 | 40 | 49 |
| 3 | 1 | 11 | 39 | 49 |
| 4 | 1 | 11 | 39 | 50 |
| 5 | 0 | 10 | 39 | 51 |
| 6 | 0 | 10 | 38 | 52 |
| 7 | 0 | 9 | 38 | 53 |
| 8 | 0 | 9 | 38 | 53 |
| 9 | 0 | 9 | 38 | 53 |
| 10 | 0 | 9 | 38 | 53 |
| 11 | 0 | 9 | 38 | 53 |
| 12 | 0 | 9 | 38 | 53 |
| 13 | 0 | 9 | 39 | 52 |
| 14 | 0 | 9 | 39 | 52 |
| 15 | 0 | 9 | 39 | 52 |
| 16 | 0 | 9 | 39 | 52 |
| 17 | 1 | 9 | 39 | 51 |
| 18 | 1 | 9 | 38 | 52 |
| 19 | 1 | 9 | 38 | 52 |
| 20 | 1 | 9 | 38 | 52 |
| 21 | 1 | 8 | 38 | 53 |
| 22 | 1 | 8 | 38 | 53 |
| 23 | 1 | 7 | 38 | 54 |
| 24 | 1 | 7 | 37 | 55 |
| 25 | 1 | 6 | 37 | 56 |
| 26 | 0 | 6 | 36 | 58 |
| 27 | 0 | 5 | 36 | 59 |
| 28 | 0 | 5 | 35 | 60 |
| 29 | 0 | 5 | 35 | 60 |
| 30 | 0 | 4 | 35 | 61 |
| 31 | 0 | 4 | 35 | 61 |
Wind in August
Winds average 9 km/h in August.
Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in August
Daylight runs from about 11 h 48 min at the start of August to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over August. Sunrise moves from 6:09 AM to 6:00 AM, and sunset from 5:59 PM to 5:55 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:09 | 6:09 | 6:09 | 6:09 | 6:09 | 6:08 | 6:08 | 6:08 | 6:08 | 6:08 | 6:07 | 6:07 | 6:07 | 6:07 | 6:06 | 6:06 | 6:06 | 6:05 | 6:05 | 6:05 | 6:04 | 6:04 | 6:04 | 6:03 | 6:03 | 6:02 | 6:02 | 6:02 | 6:01 | 6:01 | 6:00 |
| Sunset (PM) | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:59 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:58 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:56 | 5:56 | 5:56 | 5:56 | 5:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:09 | 5:59 |
| 2 | 11.8 | 6:09 | 5:59 |
| 3 | 11.8 | 6:09 | 5:59 |
| 4 | 11.8 | 6:09 | 5:59 |
| 5 | 11.8 | 6:09 | 5:59 |
| 6 | 11.8 | 6:08 | 5:59 |
| 7 | 11.8 | 6:08 | 5:59 |
| 8 | 11.8 | 6:08 | 5:59 |
| 9 | 11.8 | 6:08 | 5:59 |
| 10 | 11.8 | 6:08 | 5:58 |
| 11 | 11.9 | 6:07 | 5:58 |
| 12 | 11.9 | 6:07 | 5:58 |
| 13 | 11.9 | 6:07 | 5:58 |
| 14 | 11.9 | 6:07 | 5:58 |
| 15 | 11.9 | 6:06 | 5:58 |
| 16 | 11.9 | 6:06 | 5:58 |
| 17 | 11.9 | 6:06 | 5:58 |
| 18 | 11.9 | 6:05 | 5:58 |
| 19 | 11.9 | 6:05 | 5:58 |
| 20 | 11.9 | 6:05 | 5:57 |
| 21 | 11.9 | 6:04 | 5:57 |
| 22 | 11.9 | 6:04 | 5:57 |
| 23 | 11.9 | 6:04 | 5:57 |
| 24 | 11.9 | 6:03 | 5:57 |
| 25 | 11.9 | 6:03 | 5:57 |
| 26 | 11.9 | 6:02 | 5:57 |
| 27 | 11.9 | 6:02 | 5:56 |
| 28 | 11.9 | 6:02 | 5:56 |
| 29 | 11.9 | 6:01 | 5:56 |
| 30 | 11.9 | 6:01 | 5:56 |
| 31 | 11.9 | 6:00 | 5:55 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.94 kWh/m².
For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.36 kWh/m² in October across the year — August's 5.94 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.7 | Bright |
| 2 | 5.7 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.8 | Bright |
| 6 | 5.8 | Bright |
| 7 | 5.8 | Bright |
| 8 | 5.8 | Bright |
| 9 | 5.8 | Bright |
| 10 | 5.9 | Bright |
| 11 | 5.9 | Bright |
| 12 | 5.9 | Bright |
| 13 | 5.9 | Bright |
| 14 | 5.9 | Bright |
| 15 | 5.9 | Bright |
| 16 | 6.0 | Bright |
| 17 | 6.0 | Bright |
| 18 | 6.0 | Bright |
| 19 | 6.0 | Bright |
| 20 | 6.0 | Intense |
| 21 | 6.0 | Intense |
| 22 | 6.0 | Intense |
| 23 | 6.0 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for São Mateus do Maranhão
None of São Mateus do Maranhão's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
São Mateus do Maranhão's monsoon runs January–April, when most of the year's rain falls.
Is August a good time to visit São Mateus do Maranhão?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a weaker month for outdoor sightseeing in São Mateus do Maranhão. The water and warmth also suit a beach or pool day.
What to pack for São Mateus do Maranhão in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, São Mateus do Maranhão sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: sun protection.
UV index in São Mateus do Maranhão in August
Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in São Mateus do Maranhão peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 24 at about 10 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 14 | 15 | 14 | 11 | 10 | 10 | 10 | 12 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in São Mateus do Maranhão in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in São Mateus do Maranhão is worst in October — around 25 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (June, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 16 | 15 | 13 | 10 | 8 | 9 | 12 | 16 | 25 | 23 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 16 | Moderate |
| Mar | 15 | Moderate |
| Apr | 13 | Moderate |
| May | 10 | Good |
| Jun | 8 | Good |
| Jul | 9 | Good |
| Aug | 12 | Good |
| Sep | 16 | Moderate |
| Oct | 25 | Moderate |
| Nov | 23 | Moderate |
| Dec | 17 | Moderate |
Where is São Mateus do Maranhão?
São Mateus do Maranhão sits at 4.0°S, 44.5°W, 47 m above sea level, in Brazil. The nearest listed city is Alto Alegre do Maranhão, 19 km away.
Topography around São Mateus do Maranhão
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Mateus do Maranhão.
Within 3 km, the terrain around São Mateus do Maranhão has only modest variations in elevation — a maximum elevation change of 28 m around an average of 42 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 76 m; within 80 km, only modest variations in elevation — a maximum elevation change of 174 m.
The land around São Mateus do Maranhão is covered by grassland (44%) and trees (29%) within 3 km, grassland (50%) and trees (31%) within 16 km, and trees (47%) and grassland (46%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for São Mateus do Maranhão (-4.0417°, -44.475°, elevation 47 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).