São João da Barra weather in January
In January, São João da Barra sees average daytime highs of 27°C and overnight lows near 24°C, with 114 mm of rain across 10.4 wet days and about 13.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 31% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 13 h 18 min at the start of January to 13 hours by month's end. Set against the rest of the year, January is São João da Barra's 10th-clearest and 4th-windiest month. For the whole year in context, see São João da Barra's year-round climate.
- Daytime high
- 27°
- 3rd warmest
- Overnight low
- 24°
- 10th coldest
- Rainfall
- 114 mm
- 10.4 wet days
- Daylight
- 13 h 12 min
- 6:18 AM – 7:29 PM
- Cloud cover
- 62%
- 10th clearest
- Wind
- 20 km/h
- 4th windiest
- Solar energy
- 6.62 kWh/m²
- Travel score
- 6.3
- out of 10
São João da Barra is settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 27°C through the month.
A typical January day in São João da Barra reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, January runs on par with December and on par with February.
| 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) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 24 |
| 2 | 27 | 24 |
| 3 | 27 | 24 |
| 4 | 27 | 24 |
| 5 | 27 | 24 |
| 6 | 27 | 24 |
| 7 | 27 | 24 |
| 8 | 27 | 24 |
| 9 | 27 | 24 |
| 10 | 27 | 24 |
| 11 | 27 | 24 |
| 12 | 27 | 24 |
| 13 | 27 | 24 |
| 14 | 27 | 24 |
| 15 | 27 | 24 |
| 16 | 27 | 24 |
| 17 | 27 | 24 |
| 18 | 27 | 24 |
| 19 | 27 | 24 |
| 20 | 27 | 24 |
| 21 | 27 | 24 |
| 22 | 28 | 24 |
| 23 | 28 | 24 |
| 24 | 28 | 24 |
| 25 | 28 | 24 |
| 26 | 28 | 24 |
| 27 | 28 | 24 |
| 28 | 28 | 24 |
| 29 | 28 | 24 |
| 30 | 28 | 24 |
| 31 | 28 | 24 |
São João da Barra weather by month
How January compares with the rest of the year at a glance. January is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 24° | 114 | 10.4 | 13.2 | 6.3 |
| Feb | 28° / 24° | 54 | 7.6 | 12.7 | 6.5 |
| Mar | 28° / 24° | 112 | 12.7 | 12.2 | 6.0 |
| Apr | 27° / 23° | 75 | 11.4 | 11.5 | 6.5 |
| May | 25° / 22° | 51 | 9.6 | 11 | 7.1 |
| Jun | 25° / 21° | 25 | 6.3 | 10.7 | 7.8 |
| Jul | 24° / 20° | 29 | 6.5 | 10.8 | 8.0 |
| Aug | 24° / 20° | 26 | 6 | 11.3 | 8.0 |
| Sep | 25° / 21° | 48 | 8.1 | 11.9 | 7.5 |
| Oct | 25° / 22° | 78 | 8.8 | 12.5 | 7.0 |
| Nov | 26° / 23° | 139 | 13.8 | 13 | 5.9 |
| Dec | 27° / 24° | 151 | 14.3 | 13.3 | 5.8 |
Cloud cover in January
The sky is clear or mostly clear about 31% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 56%. 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 (%) | 40 | 40 | 40 | 41 | 41 | 40 | 40 | 40 | 41 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 46 | 46 | 47 | 47 | 48 | 49 | 49 | 49 | 49 |
| Cloudier (%) | 60 | 60 | 60 | 59 | 59 | 60 | 60 | 60 | 59 | 58 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 51 | 51 | 51 | 51 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 40 | 60 |
| 2 | 40 | 60 |
| 3 | 40 | 60 |
| 4 | 41 | 59 |
| 5 | 41 | 59 |
| 6 | 40 | 60 |
| 7 | 40 | 60 |
| 8 | 40 | 60 |
| 9 | 41 | 59 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 42 | 58 |
| 13 | 43 | 57 |
| 14 | 43 | 57 |
| 15 | 43 | 57 |
| 16 | 44 | 56 |
| 17 | 44 | 56 |
| 18 | 45 | 55 |
| 19 | 45 | 55 |
| 20 | 45 | 55 |
| 21 | 45 | 55 |
| 22 | 45 | 55 |
| 23 | 46 | 54 |
| 24 | 46 | 54 |
| 25 | 47 | 53 |
| 26 | 47 | 53 |
| 27 | 48 | 52 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 49 | 51 |
| 31 | 49 | 51 |
Chance of precipitation in January
São João da Barra gets around 114 mm of rain over 10.4 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 33% and peaks near 40% 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 (%) | 40 | 39 | 38 | 37 | 36 | 36 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 28 | 28 | 27 |
| Rain chance (%) | |
|---|---|
| 1 | 40 |
| 2 | 39 |
| 3 | 38 |
| 4 | 37 |
| 5 | 36 |
| 6 | 36 |
| 7 | 35 |
| 8 | 34 |
| 9 | 34 |
| 10 | 34 |
| 11 | 33 |
| 12 | 33 |
| 13 | 33 |
| 14 | 33 |
| 15 | 33 |
| 16 | 34 |
| 17 | 34 |
| 18 | 34 |
| 19 | 34 |
| 20 | 33 |
| 21 | 33 |
| 22 | 33 |
| 23 | 32 |
| 24 | 31 |
| 25 | 31 |
| 26 | 30 |
| 27 | 29 |
| 28 | 29 |
| 29 | 28 |
| 30 | 28 |
| 31 | 27 |
Humidity in January
Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the oppressive band about 89% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 8 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 |
| Oppressive (%) | 88 | 87 | 87 | 87 | 88 | 88 | 89 | 90 | 89 | 90 | 90 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 87 | 87 | 87 | 87 | 87 | 89 | 90 | 90 | 90 | 90 | 91 | 92 |
| Miserable (%) | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 8 | 88 | 3 |
| 2 | 1 | 8 | 87 | 4 |
| 3 | 1 | 8 | 87 | 4 |
| 4 | 1 | 8 | 87 | 4 |
| 5 | 1 | 7 | 88 | 4 |
| 6 | 1 | 7 | 88 | 4 |
| 7 | 1 | 6 | 89 | 4 |
| 8 | 0 | 6 | 90 | 4 |
| 9 | 0 | 6 | 89 | 5 |
| 10 | 0 | 5 | 90 | 5 |
| 11 | 0 | 5 | 90 | 5 |
| 12 | 1 | 5 | 89 | 5 |
| 13 | 1 | 5 | 89 | 5 |
| 14 | 1 | 5 | 89 | 5 |
| 15 | 1 | 5 | 89 | 5 |
| 16 | 1 | 5 | 89 | 5 |
| 17 | 1 | 5 | 89 | 5 |
| 18 | 1 | 5 | 89 | 5 |
| 19 | 1 | 5 | 89 | 5 |
| 20 | 1 | 6 | 87 | 6 |
| 21 | 1 | 6 | 87 | 6 |
| 22 | 1 | 6 | 87 | 6 |
| 23 | 1 | 6 | 87 | 6 |
| 24 | 1 | 6 | 87 | 6 |
| 25 | 0 | 6 | 89 | 5 |
| 26 | 0 | 5 | 90 | 5 |
| 27 | 0 | 5 | 90 | 5 |
| 28 | 0 | 5 | 90 | 5 |
| 29 | 0 | 5 | 90 | 5 |
| 30 | 0 | 5 | 91 | 4 |
| 31 | 0 | 4 | 92 | 4 |
Wind in January
Winds average 20 km/h in January.
Across January, daily wind ranges from about 20 km/h on the calmest days to 20 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) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 20 | light breeze |
| 2 | 20 | light breeze |
| 3 | 20 | light breeze |
| 4 | 20 | light breeze |
| 5 | 20 | light breeze |
| 6 | 20 | light breeze |
| 7 | 20 | light breeze |
| 8 | 20 | light breeze |
| 9 | 20 | light breeze |
| 10 | 20 | light breeze |
| 11 | 20 | light breeze |
| 12 | 20 | light breeze |
| 13 | 20 | light breeze |
| 14 | 20 | light breeze |
| 15 | 20 | light breeze |
| 16 | 20 | light breeze |
| 17 | 20 | light breeze |
| 18 | 20 | light breeze |
| 19 | 20 | light breeze |
| 20 | 20 | light breeze |
| 21 | 20 | light breeze |
| 22 | 20 | light breeze |
| 23 | 20 | light breeze |
| 24 | 20 | light breeze |
| 25 | 20 | light breeze |
| 26 | 20 | light breeze |
| 27 | 20 | light breeze |
| 28 | 20 | light breeze |
| 29 | 20 | light breeze |
| 30 | 20 | light breeze |
| 31 | 20 | light breeze |
Sunrise & sunset in January
Daylight runs from about 13 h 18 min at the start of January to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over January. Sunrise moves from 6:08 AM to 6:28 AM, and sunset from 7:26 PM to 7:27 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) | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 13.0 |
| Sunrise (AM) | 6:08 | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 | 6:12 | 6:13 | 6:13 | 6:14 | 6:15 | 6:15 | 6:16 | 6:17 | 6:17 | 6:18 | 6:19 | 6:19 | 6:20 | 6:21 | 6:21 | 6:22 | 6:23 | 6:23 | 6:24 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 | 6:28 |
| Sunset (PM) | 7:26 | 7:27 | 7:27 | 7:27 | 7:27 | 7:28 | 7:28 | 7:28 | 7:28 | 7:28 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:29 | 7:28 | 7:28 | 7:28 | 7:28 | 7:28 | 7:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 6:08 | 7:26 |
| 2 | 13.3 | 6:09 | 7:27 |
| 3 | 13.3 | 6:10 | 7:27 |
| 4 | 13.3 | 6:10 | 7:27 |
| 5 | 13.3 | 6:11 | 7:27 |
| 6 | 13.3 | 6:11 | 7:28 |
| 7 | 13.3 | 6:12 | 7:28 |
| 8 | 13.3 | 6:13 | 7:28 |
| 9 | 13.3 | 6:13 | 7:28 |
| 10 | 13.2 | 6:14 | 7:28 |
| 11 | 13.2 | 6:15 | 7:29 |
| 12 | 13.2 | 6:15 | 7:29 |
| 13 | 13.2 | 6:16 | 7:29 |
| 14 | 13.2 | 6:17 | 7:29 |
| 15 | 13.2 | 6:17 | 7:29 |
| 16 | 13.2 | 6:18 | 7:29 |
| 17 | 13.2 | 6:19 | 7:29 |
| 18 | 13.2 | 6:19 | 7:29 |
| 19 | 13.2 | 6:20 | 7:29 |
| 20 | 13.1 | 6:21 | 7:29 |
| 21 | 13.1 | 6:21 | 7:29 |
| 22 | 13.1 | 6:22 | 7:29 |
| 23 | 13.1 | 6:23 | 7:29 |
| 24 | 13.1 | 6:23 | 7:29 |
| 25 | 13.1 | 6:24 | 7:29 |
| 26 | 13.1 | 6:25 | 7:28 |
| 27 | 13.1 | 6:25 | 7:28 |
| 28 | 13.0 | 6:26 | 7:28 |
| 29 | 13.0 | 6:26 | 7:28 |
| 30 | 13.0 | 6:27 | 7:28 |
| 31 | 13.0 | 6:28 | 7:27 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 6.62 kWh/m².
For context, solar energy here swings from a low near 3.64 kWh/m² to a high of 6.72 kWh/m² in February across the year — January's 6.62 kWh/m² sits near the top of that range.
| 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) | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.6 | Intense |
| 6 | 6.6 | Intense |
| 7 | 6.6 | Intense |
| 8 | 6.6 | Intense |
| 9 | 6.6 | Intense |
| 10 | 6.6 | Intense |
| 11 | 6.6 | Intense |
| 12 | 6.6 | Intense |
| 13 | 6.6 | Intense |
| 14 | 6.6 | Intense |
| 15 | 6.6 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.7 | Intense |
| 18 | 6.7 | Intense |
| 19 | 6.7 | Intense |
| 20 | 6.7 | Intense |
| 21 | 6.7 | Intense |
| 22 | 6.7 | Intense |
| 23 | 6.7 | Intense |
| 24 | 6.7 | Intense |
| 25 | 6.7 | Intense |
| 26 | 6.7 | Intense |
| 27 | 6.8 | Intense |
| 28 | 6.8 | Intense |
| 29 | 6.8 | Intense |
| 30 | 6.8 | Intense |
| 31 | 6.8 | Intense |
Hazard calendar for São João da Barra
In January, São João da Barra sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
São João da Barra's rainy season runs October–January, when most of the year's rain falls.
Is January a good time to visit São João da Barra?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit São João da Barra for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São João da Barra in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, São João da Barra sees daytime highs around 27°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.
Sea temperature near São João da Barra in January
The nearest coast averages about 24°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in March at about 25°C and coldest in August near 22°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) | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 25 | Warm |
| Mar | 25 | Warm |
| Apr | 25 | Warm |
| May | 24 | Warm |
| Jun | 23 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 24 | Refreshing |
| Dec | 24 | Warm |
UV index in São João da Barra in January
Clear-sky midday UV in January peaks around 14 (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 João da Barra peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 6 (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) | 14 | 14 | 12 | 9 | 7 | 6 | 6 | 8 | 9 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Where is São João da Barra?
São João da Barra sits at 21.6°S, 41.1°W, 7 m above sea level, in Brazil. The nearest listed city is Campos dos Goytacazes, 31 km away.
Topography around São João da Barra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São João da Barra.
Within 3 km, the terrain around São João da Barra has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 19 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,525 m.
The land around São João da Barra is covered by grassland (59%) within 3 km, water (47%) and grassland (37%) within 16 km, and grassland (44%) and water (38%) 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 João da Barra (-21.6403°, -41.0511°, elevation 7 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).