Barreirinhas weather in May
In May, Barreirinhas sees average daytime highs of 30°C and overnight lows near 25°C, with 192 mm of rain across 22.1 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels miserable.
Daylight stretches from about 11 h 54 min at the start of May to 11 h 54 min by month's end. Set against the rest of the year, May is Barreirinhas's 8th-clearest and 11th-windiest month. For the whole year in context, see Barreirinhas's year-round climate.
- Daytime high
- 30°
- 9th warmest
- Overnight low
- 25°
- 6th coldest
- Rainfall
- 192 mm
- 22.1 wet days
- Daylight
- 11 h 54 min
- 5:51 AM – 5:44 PM
- Cloud cover
- 65%
- 8th clearest
- Wind
- 11 km/h
- 11th windiest
- Solar energy
- 5.13 kWh/m²
- Travel score
- 3.5
- out of 10
Barreirinhas is principal settlement in Barreirinhas Municipality, Maranhão, Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Day-to-day highs hold fairly steady near 30°C through the month.
A typical May day in Barreirinhas reaches about 30°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, May runs on par with April and on par with June.
| 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) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 25 |
| 2 | 30 | 25 |
| 3 | 30 | 25 |
| 4 | 30 | 25 |
| 5 | 30 | 25 |
| 6 | 30 | 25 |
| 7 | 30 | 25 |
| 8 | 30 | 25 |
| 9 | 30 | 25 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 30 | 25 |
| 15 | 30 | 25 |
| 16 | 30 | 25 |
| 17 | 30 | 25 |
| 18 | 30 | 25 |
| 19 | 30 | 25 |
| 20 | 30 | 25 |
| 21 | 30 | 25 |
| 22 | 30 | 25 |
| 23 | 30 | 25 |
| 24 | 30 | 25 |
| 25 | 30 | 25 |
| 26 | 30 | 25 |
| 27 | 30 | 25 |
| 28 | 30 | 25 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
| 31 | 30 | 25 |
How May really feels in Barreirinhas
Once humidity and wind are folded in, May 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Barreirinhas weather by month
How May compares with the rest of the year at a glance. May is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 25° | 140 | 21.6 | 12.1 | 3.4 |
| Feb | 30° / 24° | 204 | 24.2 | 12.1 | 3.1 |
| Mar | 30° / 24° | 278 | 29 | 12 | 2.8 |
| Apr | 30° / 24° | 303 | 27.2 | 11.9 | 2.9 |
| May | 30° / 25° | 192 | 22.1 | 11.9 | 3.5 |
| Jun | 31° / 25° | 66 | 13.1 | 11.8 | 4.6 |
| Jul | 31° / 25° | 38 | 6.8 | 11.9 | 5.1 |
| Aug | 32° / 25° | 7 | 1.5 | 11.9 | 5.1 |
| Sep | 32° / 25° | 3 | 0.8 | 12 | 5.1 |
| Oct | 32° / 25° | 6 | 0.8 | 12.1 | 5.1 |
| Nov | 32° / 26° | 11 | 2.4 | 12.1 | 4.9 |
| Dec | 32° / 25° | 37 | 8.4 | 12.2 | 4.4 |
Cloud cover in May
The sky is clear or mostly clear about 24% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to open up as the month goes on.
| 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 (%) | 26 | 27 | 27 | 29 | 30 | 32 | 33 | 34 | 35 | 37 | 38 | 39 | 39 | 40 | 41 | 42 | 43 | 45 | 45 | 46 | 46 | 49 | 49 | 50 | 51 | 52 | 54 | 55 | 56 | 57 | 59 |
| Cloudier (%) | 74 | 73 | 73 | 71 | 70 | 68 | 67 | 66 | 65 | 63 | 62 | 61 | 61 | 60 | 59 | 58 | 57 | 55 | 55 | 54 | 54 | 51 | 51 | 50 | 49 | 48 | 46 | 45 | 44 | 43 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 26 | 74 |
| 2 | 27 | 73 |
| 3 | 27 | 73 |
| 4 | 29 | 71 |
| 5 | 30 | 70 |
| 6 | 32 | 68 |
| 7 | 33 | 67 |
| 8 | 34 | 66 |
| 9 | 35 | 65 |
| 10 | 37 | 63 |
| 11 | 38 | 62 |
| 12 | 39 | 61 |
| 13 | 39 | 61 |
| 14 | 40 | 60 |
| 15 | 41 | 59 |
| 16 | 42 | 58 |
| 17 | 43 | 57 |
| 18 | 45 | 55 |
| 19 | 45 | 55 |
| 20 | 46 | 54 |
| 21 | 46 | 54 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 50 | 50 |
| 25 | 51 | 49 |
| 26 | 52 | 48 |
| 27 | 54 | 46 |
| 28 | 55 | 45 |
| 29 | 56 | 44 |
| 30 | 57 | 43 |
| 31 | 59 | 41 |
Chance of precipitation in May
Barreirinhas gets around 192 mm of rain over 22.1 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 71% and peaks near 84% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 84 | 83 | 83 | 82 | 81 | 80 | 80 | 79 | 78 | 77 | 76 | 75 | 74 | 73 | 73 | 72 | 71 | 70 | 69 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 60 | 59 | 58 | 57 |
| Rain chance (%) | |
|---|---|
| 1 | 84 |
| 2 | 83 |
| 3 | 83 |
| 4 | 82 |
| 5 | 81 |
| 6 | 80 |
| 7 | 80 |
| 8 | 79 |
| 9 | 78 |
| 10 | 77 |
| 11 | 76 |
| 12 | 75 |
| 13 | 74 |
| 14 | 73 |
| 15 | 73 |
| 16 | 72 |
| 17 | 71 |
| 18 | 70 |
| 19 | 69 |
| 20 | 68 |
| 21 | 67 |
| 22 | 66 |
| 23 | 65 |
| 24 | 64 |
| 25 | 63 |
| 26 | 62 |
| 27 | 61 |
| 28 | 60 |
| 29 | 59 |
| 30 | 58 |
| 31 | 57 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 70% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 26 | 27 | 29 | 30 | 31 | 32 | 34 | 35 | 36 | 38 | 39 | 41 | 42 | 43 | 44 | 45 |
| Miserable (%) | 75 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 75 | 74 | 73 | 71 | 70 | 69 | 68 | 66 | 65 | 64 | 62 | 61 | 59 | 58 | 57 | 56 | 55 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 25 | 75 |
| 2 | 24 | 76 |
| 3 | 24 | 76 |
| 4 | 24 | 76 |
| 5 | 24 | 76 |
| 6 | 23 | 77 |
| 7 | 23 | 77 |
| 8 | 23 | 77 |
| 9 | 23 | 77 |
| 10 | 23 | 77 |
| 11 | 23 | 77 |
| 12 | 23 | 77 |
| 13 | 24 | 76 |
| 14 | 24 | 76 |
| 15 | 25 | 75 |
| 16 | 26 | 74 |
| 17 | 27 | 73 |
| 18 | 29 | 71 |
| 19 | 30 | 70 |
| 20 | 31 | 69 |
| 21 | 32 | 68 |
| 22 | 34 | 66 |
| 23 | 35 | 65 |
| 24 | 36 | 64 |
| 25 | 38 | 62 |
| 26 | 39 | 61 |
| 27 | 41 | 59 |
| 28 | 42 | 58 |
| 29 | 43 | 57 |
| 30 | 44 | 56 |
| 31 | 45 | 55 |
Wind in May
Winds average 11 km/h in May.
Across May, daily wind ranges from about 10 km/h on the calmest days to 11 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in May
Daylight runs from about 11 h 54 min at the start of May to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over May. Sunrise moves from 5:51 AM to 5:53 AM, and sunset from 5:46 PM to 5:44 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) | 11.9 | 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 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:51 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:52 | 5:53 | 5:53 | 5:53 | 5:53 |
| Sunset (PM) | 5:46 | 5:45 | 5:45 | 5:45 | 5:45 | 5:45 | 5:45 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 | 5:44 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 5:51 | 5:46 |
| 2 | 11.9 | 5:51 | 5:45 |
| 3 | 11.9 | 5:51 | 5:45 |
| 4 | 11.9 | 5:51 | 5:45 |
| 5 | 11.9 | 5:51 | 5:45 |
| 6 | 11.9 | 5:51 | 5:45 |
| 7 | 11.9 | 5:51 | 5:45 |
| 8 | 11.9 | 5:51 | 5:44 |
| 9 | 11.9 | 5:51 | 5:44 |
| 10 | 11.9 | 5:51 | 5:44 |
| 11 | 11.9 | 5:51 | 5:44 |
| 12 | 11.9 | 5:51 | 5:44 |
| 13 | 11.9 | 5:51 | 5:44 |
| 14 | 11.9 | 5:51 | 5:44 |
| 15 | 11.9 | 5:51 | 5:44 |
| 16 | 11.9 | 5:51 | 5:44 |
| 17 | 11.9 | 5:51 | 5:44 |
| 18 | 11.9 | 5:51 | 5:44 |
| 19 | 11.9 | 5:52 | 5:44 |
| 20 | 11.9 | 5:52 | 5:44 |
| 21 | 11.9 | 5:52 | 5:44 |
| 22 | 11.9 | 5:52 | 5:44 |
| 23 | 11.9 | 5:52 | 5:44 |
| 24 | 11.9 | 5:52 | 5:44 |
| 25 | 11.9 | 5:52 | 5:44 |
| 26 | 11.9 | 5:52 | 5:44 |
| 27 | 11.9 | 5:52 | 5:44 |
| 28 | 11.9 | 5:53 | 5:44 |
| 29 | 11.9 | 5:53 | 5:44 |
| 30 | 11.9 | 5:53 | 5:44 |
| 31 | 11.9 | 5:53 | 5:44 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.13 kWh/m².
For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 6.8 kWh/m² in October across the year — May's 5.13 kWh/m² sits near the bottom.
| 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) | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.9 | Bright |
| 2 | 4.9 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.1 | Bright |
| 12 | 5.1 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
| 31 | 5.3 | Bright |
Hazard calendar for Barreirinhas
In May, Barreirinhas sits inside its monsoon season. The full year is below, with each hazard's peak months called out.
Barreirinhas's monsoon runs January–May, when most of the year's rain falls.
Is May a good time to visit Barreirinhas?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Barreirinhas.
What to pack for Barreirinhas in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Barreirinhas sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.
Sea temperature near Barreirinhas in May
The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 27 km away) is warmest in April at about 29°C and coldest in September near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 28 | Warm |
| Aug | 27 | Warm |
| Sep | 27 | Warm |
| Oct | 27 | Warm |
| Nov | 28 | Warm |
| Dec | 28 | Warm |
UV index in Barreirinhas in May
Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Barreirinhas peaks around March 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (extreme).
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 | 16 | 14 | 12 | 10 | 10 | 11 | 12 | 12 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in Barreirinhas in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Barreirinhas is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (May, 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) | 12 | 15 | 14 | 11 | 8 | 9 | 20 | 12 | 9 | 11 | 14 | 14 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Good | Good | Good | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 15 | Moderate |
| Mar | 14 | Moderate |
| Apr | 11 | Good |
| May | 8 | Good |
| Jun | 9 | Good |
| Jul | 20 | Moderate |
| Aug | 12 | Good |
| Sep | 9 | Good |
| Oct | 11 | Good |
| Nov | 14 | Moderate |
| Dec | 14 | Moderate |
Where is Barreirinhas?
Barreirinhas sits at 2.8°S, 42.8°W, 5 m above sea level, in Brazil. The nearest listed city is Paulino Neves, 33 km away.
Topography around Barreirinhas
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barreirinhas.
Within 3 km, the terrain around Barreirinhas has only modest variations in elevation — a maximum elevation change of 25 m around an average of 8 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 138 m.
The land around Barreirinhas is covered by grassland (36%) and trees (29%) within 3 km, trees (46%) and grassland (20%) within 16 km, and trees (39%) and water (30%) 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 Barreirinhas (-2.7556°, -42.8259°, elevation 5 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).