Guaíba weather in January
In January, Guaíba sees average daytime highs of 30°C and overnight lows near 21°C, with 137 mm of rain across 14.1 wet days and about 13.7 hours of daylight. It is the 1st-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 31% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 13 h 54 min at the start of January to 13 h 30 min by month's end. Set against the rest of the year, January is Guaíba's 6th-clearest and 5th-windiest month. For the whole year in context, see Guaíba's year-round climate.
- Daytime high
- 30°
- 1st warmest
- Overnight low
- 21°
- 12th coldest
- Rainfall
- 137 mm
- 14.1 wet days
- Daylight
- 13 h 42 min
- 6:42 AM – 8:27 PM
- Cloud cover
- 58%
- 6th clearest
- Wind
- 11 km/h
- 5th windiest
- Solar energy
- 6.33 kWh/m²
- Travel score
- 4.6
- out of 10
Guaíba is human 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 30°C through the month.
A typical January day in Guaíba reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, January runs about 1°C warmer than 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) | 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) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 21 |
| 2 | 30 | 21 |
| 3 | 30 | 21 |
| 4 | 30 | 21 |
| 5 | 30 | 21 |
| 6 | 30 | 21 |
| 7 | 30 | 21 |
| 8 | 30 | 21 |
| 9 | 30 | 21 |
| 10 | 30 | 21 |
| 11 | 30 | 21 |
| 12 | 30 | 21 |
| 13 | 30 | 21 |
| 14 | 30 | 21 |
| 15 | 30 | 21 |
| 16 | 30 | 21 |
| 17 | 30 | 21 |
| 18 | 30 | 21 |
| 19 | 30 | 21 |
| 20 | 30 | 21 |
| 21 | 30 | 21 |
| 22 | 30 | 21 |
| 23 | 30 | 21 |
| 24 | 30 | 21 |
| 25 | 30 | 21 |
| 26 | 30 | 21 |
| 27 | 30 | 21 |
| 28 | 30 | 21 |
| 29 | 30 | 21 |
| 30 | 30 | 21 |
| 31 | 30 | 21 |
How January really feels in Guaíba
Once humidity and wind are folded in, January averages 6 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Guaíba weather by month
How January compares with the rest of the year at a glance. January is the 1st-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 | 30° / 21° | 137 | 14.1 | 13.7 | 4.6 |
| Feb | 30° / 21° | 126 | 13.3 | 13.1 | 4.6 |
| Mar | 28° / 20° | 112 | 11.9 | 12.2 | 5.7 |
| Apr | 26° / 17° | 106 | 9.2 | 11.3 | 6.8 |
| May | 22° / 13° | 107 | 9.2 | 10.5 | 6.7 |
| Jun | 20° / 11° | 113 | 9.2 | 10.1 | 6.2 |
| Jul | 19° / 10° | 140 | 10 | 10.3 | 6.1 |
| Aug | 21° / 11° | 120 | 10.2 | 10.9 | 6.5 |
| Sep | 22° / 13° | 146 | 11.1 | 11.8 | 6.4 |
| Oct | 24° / 16° | 170 | 12.5 | 12.7 | 6.4 |
| Nov | 27° / 17° | 123 | 10.8 | 13.5 | 6.4 |
| Dec | 29° / 20° | 125 | 11.7 | 13.9 | 5.2 |
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 20% of January, with mostly cloudy or overcast conditions the remaining 49%.
| 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 (%) | 52 | 52 | 52 | 52 | 52 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 51 | 51 | 52 | 51 | 51 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 50 | 49 | 49 | 50 | 50 |
| Cloudier (%) | 48 | 48 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 49 | 49 | 48 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 51 | 51 | 50 | 51 | 51 | 50 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 52 | 48 |
| 2 | 52 | 48 |
| 3 | 52 | 48 |
| 4 | 52 | 48 |
| 5 | 52 | 48 |
| 6 | 51 | 49 |
| 7 | 51 | 49 |
| 8 | 51 | 49 |
| 9 | 51 | 49 |
| 10 | 51 | 49 |
| 11 | 52 | 48 |
| 12 | 52 | 48 |
| 13 | 51 | 49 |
| 14 | 51 | 49 |
| 15 | 52 | 48 |
| 16 | 51 | 49 |
| 17 | 51 | 49 |
| 18 | 51 | 49 |
| 19 | 51 | 49 |
| 20 | 50 | 50 |
| 21 | 50 | 50 |
| 22 | 50 | 50 |
| 23 | 50 | 50 |
| 24 | 50 | 50 |
| 25 | 49 | 51 |
| 26 | 49 | 51 |
| 27 | 50 | 50 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 50 | 50 |
| 31 | 50 | 50 |
Chance of precipitation in January
Guaíba gets around 137 mm of rain over 14.1 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 45% and peaks near 49% 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 (%) | 39 | 39 | 40 | 41 | 41 | 42 | 43 | 43 | 44 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 49 | 49 | 49 |
| Rain chance (%) | |
|---|---|
| 1 | 39 |
| 2 | 39 |
| 3 | 40 |
| 4 | 41 |
| 5 | 41 |
| 6 | 42 |
| 7 | 43 |
| 8 | 43 |
| 9 | 44 |
| 10 | 45 |
| 11 | 45 |
| 12 | 45 |
| 13 | 46 |
| 14 | 46 |
| 15 | 46 |
| 16 | 46 |
| 17 | 46 |
| 18 | 46 |
| 19 | 46 |
| 20 | 46 |
| 21 | 47 |
| 22 | 47 |
| 23 | 47 |
| 24 | 47 |
| 25 | 47 |
| 26 | 48 |
| 27 | 48 |
| 28 | 48 |
| 29 | 49 |
| 30 | 49 |
| 31 | 49 |
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 38% of days. Sticky, muggy-or-worse air turns up on roughly 76% 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Comfortable (%) | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Humid (%) | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 |
| Muggy (%) | 37 | 37 | 37 | 38 | 38 | 38 | 39 | 39 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 33 | 33 |
| Oppressive (%) | 34 | 34 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 40 | 40 | 41 | 41 | 41 | 42 | 42 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 4 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 7 | 20 | 37 | 34 | 1 |
| 2 | 1 | 6 | 20 | 37 | 34 | 1 |
| 3 | 1 | 6 | 20 | 37 | 35 | 1 |
| 4 | 1 | 6 | 20 | 38 | 35 | 1 |
| 5 | 1 | 6 | 19 | 38 | 35 | 1 |
| 6 | 1 | 5 | 19 | 38 | 36 | 1 |
| 7 | 1 | 5 | 19 | 39 | 36 | 1 |
| 8 | 1 | 5 | 18 | 39 | 36 | 1 |
| 9 | 1 | 6 | 18 | 38 | 36 | 1 |
| 10 | 1 | 6 | 17 | 39 | 37 | 1 |
| 11 | 1 | 6 | 17 | 39 | 37 | 1 |
| 12 | 1 | 6 | 17 | 39 | 37 | 0 |
| 13 | 1 | 6 | 17 | 39 | 38 | 0 |
| 14 | 1 | 5 | 17 | 39 | 38 | 0 |
| 15 | 1 | 5 | 17 | 39 | 38 | 0 |
| 16 | 1 | 5 | 17 | 38 | 38 | 1 |
| 17 | 1 | 5 | 18 | 38 | 38 | 1 |
| 18 | 1 | 5 | 18 | 37 | 38 | 1 |
| 19 | 1 | 5 | 18 | 37 | 38 | 1 |
| 20 | 1 | 5 | 18 | 37 | 38 | 1 |
| 21 | 1 | 4 | 18 | 36 | 39 | 1 |
| 22 | 1 | 4 | 19 | 36 | 39 | 2 |
| 23 | 1 | 4 | 19 | 36 | 39 | 2 |
| 24 | 1 | 4 | 19 | 35 | 39 | 2 |
| 25 | 1 | 3 | 19 | 35 | 40 | 2 |
| 26 | 1 | 3 | 18 | 35 | 40 | 3 |
| 27 | 1 | 3 | 18 | 34 | 41 | 3 |
| 28 | 1 | 3 | 18 | 34 | 41 | 3 |
| 29 | 1 | 3 | 18 | 34 | 41 | 4 |
| 30 | 1 | 3 | 18 | 33 | 42 | 4 |
| 31 | 1 | 3 | 17 | 33 | 42 | 4 |
Wind in January
Winds average 11 km/h in January.
Across January, daily wind ranges from about 11 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) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | 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 January
Daylight runs from about 13 h 54 min at the start of January to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over January. Sunrise moves from 6:31 AM to 6:55 AM, and sunset from 8:26 PM to 8:22 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) | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 |
| Sunrise (AM) | 6:31 | 6:32 | 6:33 | 6:33 | 6:34 | 6:35 | 6:35 | 6:36 | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 | 6:41 | 6:41 | 6:42 | 6:43 | 6:44 | 6:45 | 6:46 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:52 | 6:53 | 6:54 | 6:55 |
| Sunset (PM) | 8:26 | 8:26 | 8:26 | 8:26 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:27 | 8:26 | 8:26 | 8:26 | 8:26 | 8:25 | 8:25 | 8:25 | 8:24 | 8:24 | 8:24 | 8:23 | 8:23 | 8:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 6:31 | 8:26 |
| 2 | 13.9 | 6:32 | 8:26 |
| 3 | 13.9 | 6:33 | 8:26 |
| 4 | 13.9 | 6:33 | 8:26 |
| 5 | 13.9 | 6:34 | 8:27 |
| 6 | 13.9 | 6:35 | 8:27 |
| 7 | 13.9 | 6:35 | 8:27 |
| 8 | 13.8 | 6:36 | 8:27 |
| 9 | 13.8 | 6:37 | 8:27 |
| 10 | 13.8 | 6:38 | 8:27 |
| 11 | 13.8 | 6:38 | 8:27 |
| 12 | 13.8 | 6:39 | 8:27 |
| 13 | 13.8 | 6:40 | 8:27 |
| 14 | 13.8 | 6:41 | 8:27 |
| 15 | 13.8 | 6:41 | 8:27 |
| 16 | 13.7 | 6:42 | 8:27 |
| 17 | 13.7 | 6:43 | 8:27 |
| 18 | 13.7 | 6:44 | 8:27 |
| 19 | 13.7 | 6:45 | 8:26 |
| 20 | 13.7 | 6:46 | 8:26 |
| 21 | 13.7 | 6:46 | 8:26 |
| 22 | 13.6 | 6:47 | 8:26 |
| 23 | 13.6 | 6:48 | 8:25 |
| 24 | 13.6 | 6:49 | 8:25 |
| 25 | 13.6 | 6:50 | 8:25 |
| 26 | 13.6 | 6:51 | 8:24 |
| 27 | 13.5 | 6:52 | 8:24 |
| 28 | 13.5 | 6:52 | 8:24 |
| 29 | 13.5 | 6:53 | 8:23 |
| 30 | 13.5 | 6:54 | 8:23 |
| 31 | 13.5 | 6:55 | 8:22 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 6.33 kWh/m².
For context, solar energy here swings from a low near 2.39 kWh/m² to a high of 6.58 kWh/m² in December across the year — January's 6.33 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 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.1 |
| 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 | 6.5 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.5 | Intense |
| 9 | 6.5 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.4 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.3 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Is January a good time to visit Guaíba?
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 Guaíba for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Guaíba in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Guaíba sees daytime highs around 30°C and nights near 21°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.
Sea temperature near Guaíba in January
The nearest coast averages about 26°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 35 km away) is warmest in February at about 26°C and coldest in July near 15°C.
It's comfortable for a long swim from Oct 23 to May 10 — about 6.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 25 | 23 | 19 | 17 | 15 | 16 | 17 | 20 | 22 | 24 |
| Comfort | Warm | Warm | Warm | Refreshing | Cool | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 25 | Warm |
| Apr | 23 | Refreshing |
| May | 19 | Cool |
| Jun | 17 | Cool |
| Jul | 15 | Cool |
| Aug | 16 | Cool |
| Sep | 17 | Cool |
| Oct | 20 | Cool |
| Nov | 22 | Refreshing |
| Dec | 24 | Warm |
UV index in Guaíba in January
Clear-sky midday UV in January peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Guaíba peaks around January 15 at about 13 (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) | 13 | 12 | 10 | 7 | 4 | 3 | 4 | 5 | 8 | 8 | 11 | 12 |
| Level | Extreme | Extreme | Very high | Very high | Moderate | Moderate | Moderate | Moderate | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 10 | Very high |
| Apr | 7 | Very high |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in Guaíba in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in Guaíba is worst in August — around 27 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 13 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) | 13 | 13 | 15 | 18 | 21 | 23 | 25 | 27 | 23 | 16 | 15 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 13 | Moderate |
| Mar | 15 | Moderate |
| Apr | 18 | Moderate |
| May | 21 | Moderate |
| Jun | 23 | Moderate |
| Jul | 25 | Moderate |
| Aug | 27 | Moderate |
| Sep | 23 | Moderate |
| Oct | 16 | Moderate |
| Nov | 15 | Moderate |
| Dec | 13 | Moderate |
Where is Guaíba?
Guaíba sits at 30.1°S, 51.3°W, 22 m above sea level, in Brazil. The nearest listed city is Porto Alegre, 13 km away.
Topography around Guaíba
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guaíba.
Within 3 km, the terrain around Guaíba has only modest variations in elevation — a maximum elevation change of 126 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 293 m; within 80 km, large variations in elevation — a maximum elevation change of 800 m.
The land around Guaíba is covered by artificial surfaces (33%), water (24%) and trees (21%) within 3 km, water (25%), trees (23%) and cropland (22%) within 16 km, and trees (41%) and grassland (20%) 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 Guaíba (-30.1139°, -51.325°, elevation 22 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).