São Borja weather in December
In December, São Borja sees average daytime highs of 31°C and overnight lows near 20°C, with 157 mm of rain across 10.6 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 31°C in the first days to 32°C by the end. The sky is clear or mostly clear about 45% of the time in December, and the air most often feels muggy.
Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is São Borja's 8th-clearest and 7th-windiest month. For the whole year in context, see São Borja's year-round climate.
- Daytime high
- 31°
- 2nd warmest
- Overnight low
- 20°
- 10th coldest
- Rainfall
- 157 mm
- 10.6 wet days
- Daylight
- 13 h 48 min
- 6:46 AM – 8:35 PM
- Cloud cover
- 50%
- 8th clearest
- Wind
- 12 km/h
- 7th windiest
- Solar energy
- 6.86 kWh/m²
- Travel score
- 4.4
- out of 10
São Borja is human settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs climb over the month, from about 31°C in the first days to 32°C by the end.
A typical December day in São Borja reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 36°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.
| 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 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 19 |
| 2 | 30 | 19 |
| 3 | 31 | 19 |
| 4 | 31 | 19 |
| 5 | 31 | 19 |
| 6 | 31 | 20 |
| 7 | 31 | 20 |
| 8 | 31 | 20 |
| 9 | 31 | 20 |
| 10 | 31 | 20 |
| 11 | 31 | 20 |
| 12 | 31 | 20 |
| 13 | 31 | 20 |
| 14 | 31 | 20 |
| 15 | 31 | 20 |
| 16 | 31 | 20 |
| 17 | 31 | 20 |
| 18 | 32 | 21 |
| 19 | 32 | 21 |
| 20 | 32 | 21 |
| 21 | 32 | 21 |
| 22 | 32 | 21 |
| 23 | 32 | 21 |
| 24 | 32 | 21 |
| 25 | 32 | 21 |
| 26 | 32 | 21 |
| 27 | 32 | 21 |
| 28 | 32 | 21 |
| 29 | 32 | 21 |
| 30 | 32 | 21 |
| 31 | 32 | 22 |
How December really feels in São Borja
Once humidity and wind are folded in, December averages 18 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 December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São Borja weather by month
How December compares with the rest of the year at a glance. December is the 2nd-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 | 32° / 22° | 159 | 11.9 | 13.6 | 3.9 |
| Feb | 31° / 21° | 132 | 11.2 | 13 | 4.3 |
| Mar | 30° / 20° | 128 | 10.2 | 12.2 | 5.2 |
| Apr | 27° / 17° | 165 | 10.1 | 11.3 | 6.7 |
| May | 23° / 14° | 119 | 8.3 | 10.6 | 7.1 |
| Jun | 21° / 12° | 117 | 9.2 | 10.2 | 6.5 |
| Jul | 20° / 11° | 113 | 8.8 | 10.4 | 6.7 |
| Aug | 23° / 12° | 103 | 8.5 | 11 | 7.2 |
| Sep | 24° / 14° | 151 | 10.1 | 11.8 | 7.0 |
| Oct | 27° / 16° | 210 | 11.5 | 12.7 | 6.4 |
| Nov | 29° / 18° | 155 | 9 | 13.4 | 5.7 |
| Dec | 31° / 20° | 157 | 10.6 | 13.8 | 4.4 |
Cloud cover in December
The sky is clear or mostly clear about 45% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 42%.
| 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 (%) | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 59 |
| Cloudier (%) | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 59 | 41 |
| 2 | 59 | 41 |
| 3 | 59 | 41 |
| 4 | 59 | 41 |
| 5 | 59 | 41 |
| 6 | 58 | 42 |
| 7 | 58 | 42 |
| 8 | 59 | 41 |
| 9 | 59 | 41 |
| 10 | 59 | 41 |
| 11 | 59 | 41 |
| 12 | 59 | 41 |
| 13 | 59 | 41 |
| 14 | 58 | 42 |
| 15 | 58 | 42 |
| 16 | 58 | 42 |
| 17 | 58 | 42 |
| 18 | 57 | 43 |
| 19 | 58 | 42 |
| 20 | 58 | 42 |
| 21 | 58 | 42 |
| 22 | 58 | 42 |
| 23 | 58 | 42 |
| 24 | 58 | 42 |
| 25 | 58 | 42 |
| 26 | 58 | 42 |
| 27 | 59 | 41 |
| 28 | 59 | 41 |
| 29 | 59 | 41 |
| 30 | 59 | 41 |
| 31 | 59 | 41 |
Chance of precipitation in December
São Borja gets around 157 mm of rain over 10.6 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 34% and peaks near 39% on the wettest days. The odds climb 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 (%) | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 32 | 32 | 33 | 34 | 34 | 35 | 36 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 38 | 38 |
| Rain chance (%) | |
|---|---|
| 1 | 29 |
| 2 | 29 |
| 3 | 30 |
| 4 | 30 |
| 5 | 30 |
| 6 | 30 |
| 7 | 30 |
| 8 | 30 |
| 9 | 30 |
| 10 | 30 |
| 11 | 31 |
| 12 | 31 |
| 13 | 32 |
| 14 | 32 |
| 15 | 33 |
| 16 | 34 |
| 17 | 34 |
| 18 | 35 |
| 19 | 36 |
| 20 | 36 |
| 21 | 37 |
| 22 | 37 |
| 23 | 38 |
| 24 | 38 |
| 25 | 39 |
| 26 | 39 |
| 27 | 39 |
| 28 | 39 |
| 29 | 39 |
| 30 | 38 |
| 31 | 38 |
Humidity in December
Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 54% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Comfortable (%) | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 |
| Humid (%) | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Muggy (%) | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 31 | 30 | 30 | 29 | 28 | 27 | 27 | 26 | 25 | 25 | 25 |
| Oppressive (%) | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 20 | 20 | 21 | 22 | 23 | 24 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 34 | 35 | 35 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 6 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 11 | 20 | 29 | 28 | 13 | 0 |
| 2 | 11 | 20 | 29 | 28 | 13 | 0 |
| 3 | 11 | 19 | 29 | 28 | 13 | 0 |
| 4 | 11 | 19 | 29 | 28 | 14 | 0 |
| 5 | 11 | 18 | 29 | 29 | 14 | 0 |
| 6 | 11 | 18 | 28 | 29 | 14 | 0 |
| 7 | 11 | 17 | 28 | 29 | 15 | 0 |
| 8 | 10 | 17 | 28 | 29 | 15 | 0 |
| 9 | 10 | 17 | 27 | 30 | 16 | 0 |
| 10 | 10 | 17 | 27 | 30 | 17 | 0 |
| 11 | 9 | 17 | 26 | 30 | 17 | 0 |
| 12 | 9 | 17 | 26 | 30 | 18 | 0 |
| 13 | 8 | 16 | 25 | 31 | 19 | 0 |
| 14 | 8 | 16 | 25 | 31 | 20 | 0 |
| 15 | 7 | 16 | 24 | 31 | 20 | 1 |
| 16 | 7 | 16 | 24 | 32 | 21 | 1 |
| 17 | 6 | 15 | 23 | 32 | 22 | 1 |
| 18 | 6 | 15 | 22 | 32 | 23 | 1 |
| 19 | 5 | 15 | 22 | 32 | 24 | 2 |
| 20 | 5 | 15 | 21 | 32 | 26 | 2 |
| 21 | 4 | 14 | 21 | 31 | 27 | 2 |
| 22 | 4 | 14 | 21 | 30 | 28 | 3 |
| 23 | 4 | 14 | 21 | 30 | 29 | 3 |
| 24 | 3 | 13 | 20 | 29 | 30 | 4 |
| 25 | 3 | 13 | 20 | 28 | 31 | 4 |
| 26 | 3 | 13 | 20 | 27 | 32 | 5 |
| 27 | 3 | 12 | 20 | 27 | 33 | 5 |
| 28 | 3 | 12 | 20 | 26 | 34 | 5 |
| 29 | 3 | 12 | 20 | 25 | 34 | 5 |
| 30 | 3 | 11 | 20 | 25 | 35 | 5 |
| 31 | 3 | 11 | 20 | 25 | 35 | 6 |
Wind in December
Winds average 12 km/h in December.
Across December, daily wind ranges from about 12 km/h on the calmest days to 12 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) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | 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 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 12 | light breeze |
| 4 | 12 | light breeze |
| 5 | 12 | light breeze |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | light breeze |
| 9 | 12 | light breeze |
| 10 | 12 | light breeze |
| 11 | 12 | light breeze |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 12 | calm |
| 17 | 12 | calm |
| 18 | 12 | calm |
| 19 | 12 | calm |
| 20 | 12 | calm |
| 21 | 12 | calm |
| 22 | 12 | calm |
| 23 | 12 | calm |
| 24 | 12 | calm |
| 25 | 12 | calm |
| 26 | 12 | calm |
| 27 | 12 | calm |
| 28 | 12 | calm |
| 29 | 12 | calm |
| 30 | 12 | calm |
| 31 | 12 | calm |
Sunrise & sunset in December
Daylight runs from about 13 h 42 min at the start of December to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over December. Sunrise moves from 6:43 AM to 6:53 AM, and sunset from 8:25 PM to 8:41 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) | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 |
| Sunrise (AM) | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:43 | 6:44 | 6:44 | 6:44 | 6:44 | 6:44 | 6:45 | 6:45 | 6:45 | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:48 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 | 6:53 |
| Sunset (PM) | 8:25 | 8:25 | 8:26 | 8:27 | 8:28 | 8:28 | 8:29 | 8:30 | 8:30 | 8:31 | 8:32 | 8:32 | 8:33 | 8:34 | 8:34 | 8:35 | 8:35 | 8:36 | 8:36 | 8:37 | 8:37 | 8:38 | 8:38 | 8:39 | 8:39 | 8:40 | 8:40 | 8:40 | 8:41 | 8:41 | 8:41 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 6:43 | 8:25 |
| 2 | 13.7 | 6:43 | 8:25 |
| 3 | 13.7 | 6:43 | 8:26 |
| 4 | 13.7 | 6:43 | 8:27 |
| 5 | 13.7 | 6:43 | 8:28 |
| 6 | 13.7 | 6:43 | 8:28 |
| 7 | 13.8 | 6:43 | 8:29 |
| 8 | 13.8 | 6:44 | 8:30 |
| 9 | 13.8 | 6:44 | 8:30 |
| 10 | 13.8 | 6:44 | 8:31 |
| 11 | 13.8 | 6:44 | 8:32 |
| 12 | 13.8 | 6:44 | 8:32 |
| 13 | 13.8 | 6:45 | 8:33 |
| 14 | 13.8 | 6:45 | 8:34 |
| 15 | 13.8 | 6:45 | 8:34 |
| 16 | 13.8 | 6:46 | 8:35 |
| 17 | 13.8 | 6:46 | 8:35 |
| 18 | 13.8 | 6:46 | 8:36 |
| 19 | 13.8 | 6:47 | 8:36 |
| 20 | 13.8 | 6:47 | 8:37 |
| 21 | 13.8 | 6:48 | 8:37 |
| 22 | 13.8 | 6:48 | 8:38 |
| 23 | 13.8 | 6:49 | 8:38 |
| 24 | 13.8 | 6:49 | 8:39 |
| 25 | 13.8 | 6:50 | 8:39 |
| 26 | 13.8 | 6:50 | 8:40 |
| 27 | 13.8 | 6:51 | 8:40 |
| 28 | 13.8 | 6:51 | 8:40 |
| 29 | 13.8 | 6:52 | 8:41 |
| 30 | 13.8 | 6:52 | 8:41 |
| 31 | 13.8 | 6:53 | 8:41 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 6.86 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.53 kWh/m² to a high of 6.86 kWh/m² in December across the year — December's 6.86 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) | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.9 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 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 | 6.8 | Intense |
| 2 | 6.8 | Intense |
| 3 | 6.8 | Intense |
| 4 | 6.8 | Intense |
| 5 | 6.8 | Intense |
| 6 | 6.9 | Intense |
| 7 | 6.9 | Intense |
| 8 | 6.9 | Intense |
| 9 | 6.9 | Intense |
| 10 | 6.9 | Intense |
| 11 | 6.9 | Intense |
| 12 | 6.9 | Intense |
| 13 | 6.9 | Intense |
| 14 | 6.9 | Intense |
| 15 | 6.9 | Intense |
| 16 | 6.9 | Intense |
| 17 | 6.9 | Intense |
| 18 | 6.9 | Intense |
| 19 | 6.9 | Intense |
| 20 | 6.9 | Intense |
| 21 | 6.8 | Intense |
| 22 | 6.8 | Intense |
| 23 | 6.8 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.8 | Intense |
| 27 | 6.8 | Intense |
| 28 | 6.8 | Intense |
| 29 | 6.8 | Intense |
| 30 | 6.8 | Intense |
| 31 | 6.8 | Intense |
Is December a good time to visit São Borja?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit São Borja for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Borja in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, São Borja sees daytime highs around 31°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.
UV index in São Borja in December
Clear-sky midday UV in December 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 São Borja peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).
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 | 13 | 11 | 8 | 5 | 3 | 4 | 5 | 8 | 5 | 11 | 12 |
| Level | Extreme | Extreme | Extreme | Very high | Moderate | Moderate | Moderate | Moderate | Very high | High | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in São Borja in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in São Borja is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 6 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) | 8 | 14 | 6 | 7 | 6 | 7 | 10 | 15 | 16 | 9 | 9 | 6 |
| Level | Good | Moderate | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 14 | Moderate |
| Mar | 6 | Good |
| Apr | 7 | Good |
| May | 6 | Good |
| Jun | 7 | Good |
| Jul | 10 | Good |
| Aug | 15 | Moderate |
| Sep | 16 | Moderate |
| Oct | 9 | Good |
| Nov | 9 | Good |
| Dec | 6 | Good |
Where is São Borja?
São Borja sits at 28.7°S, 56.0°W, 98 m above sea level, in Brazil. The nearest listed city is Santo Tomé, 13 km away.
Topography around São Borja
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Borja.
Within 3 km, the terrain around São Borja has only modest variations in elevation — a maximum elevation change of 43 m around an average of 79 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 80 m; within 80 km, significant variations in elevation — a maximum elevation change of 276 m.
The land around São Borja is covered by artificial surfaces (26%) and cropland (24%) within 3 km, cropland (47%) within 16 km, and grassland (39%) and cropland (25%) 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 Borja (-28.6606°, -56.0044°, elevation 98 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).