Rio Grande weather in December
In December, Rio Grande sees average daytime highs of 23°C and overnight lows near 21°C, with 86 mm of rain across 7.8 wet days and about 14.1 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.
Highs climb over the month, from about 22°C in the first days to 23°C by the end. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels muggy.
Daylight stretches from about 13 h 54 min at the start of December to 14 h 06 min by month's end. Set against the rest of the year, December is Rio Grande's 1st-clearest and 4th-windiest month. For the whole year in context, see Rio Grande's year-round climate.
- Daytime high
- 23°
- 4th warmest
- Overnight low
- 21°
- 9th coldest
- Rainfall
- 86 mm
- 7.8 wet days
- Daylight
- 14 h 06 min
- 6:22 AM – 8:27 PM
- Cloud cover
- 48%
- 1st clearest
- Wind
- 23 km/h
- 4th windiest
- Solar energy
- 7.08 kWh/m²
- Travel score
- 7.3
- out of 10
Rio Grande is municipality of Rio Grande do Sul state, Brazil.
- Density
- 67/km²
- people per km²
- Founded
- 1737
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs climb over the month, from about 22°C in the first days to 23°C by the end.
A typical December day in Rio Grande reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, December runs about 2°C warmer than November and about 2°C cooler than 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) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 20 | 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 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 22 | 20 |
| 2 | 22 | 20 |
| 3 | 22 | 20 |
| 4 | 22 | 20 |
| 5 | 22 | 20 |
| 6 | 22 | 20 |
| 7 | 22 | 20 |
| 8 | 22 | 20 |
| 9 | 22 | 20 |
| 10 | 22 | 20 |
| 11 | 22 | 20 |
| 12 | 22 | 20 |
| 13 | 22 | 20 |
| 14 | 22 | 21 |
| 15 | 23 | 21 |
| 16 | 23 | 21 |
| 17 | 23 | 21 |
| 18 | 23 | 21 |
| 19 | 23 | 21 |
| 20 | 23 | 21 |
| 21 | 23 | 21 |
| 22 | 23 | 21 |
| 23 | 23 | 21 |
| 24 | 23 | 21 |
| 25 | 23 | 21 |
| 26 | 23 | 21 |
| 27 | 23 | 22 |
| 28 | 23 | 22 |
| 29 | 23 | 22 |
| 30 | 23 | 22 |
| 31 | 23 | 22 |
Rio Grande weather by month
How December compares with the rest of the year at a glance. December is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 22° | 87 | 8.6 | 13.9 | 7.4 |
| Feb | 24° / 23° | 84 | 9.7 | 13.2 | 7.0 |
| Mar | 24° / 22° | 92 | 10 | 12.2 | 7.1 |
| Apr | 21° / 19° | 113 | 10.2 | 11.2 | 6.6 |
| May | 19° / 16° | 104 | 9.7 | 10.4 | 6.1 |
| Jun | 16° / 14° | 110 | 9.7 | 9.9 | 5.0 |
| Jul | 15° / 12° | 112 | 10.2 | 10.1 | 4.4 |
| Aug | 15° / 13° | 108 | 9.7 | 10.8 | 4.8 |
| Sep | 16° / 14° | 125 | 10.4 | 11.8 | 5.1 |
| Oct | 18° / 17° | 129 | 10.2 | 12.8 | 6.0 |
| Nov | 21° / 19° | 87 | 7.7 | 13.6 | 6.8 |
| Dec | 23° / 21° | 86 | 7.8 | 14.1 | 7.3 |
Cloud cover in December
The sky is clear or mostly clear about 47% of the time in December, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 37%.
| 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 (%) | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 62 | 62 | 63 | 63 | 62 | 62 | 61 | 62 | 61 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 64 | 64 |
| Cloudier (%) | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 37 | 37 | 38 | 38 | 39 | 38 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 63 | 37 |
| 2 | 63 | 37 |
| 3 | 63 | 37 |
| 4 | 63 | 37 |
| 5 | 63 | 37 |
| 6 | 63 | 37 |
| 7 | 63 | 37 |
| 8 | 62 | 38 |
| 9 | 62 | 38 |
| 10 | 63 | 37 |
| 11 | 63 | 37 |
| 12 | 62 | 38 |
| 13 | 62 | 38 |
| 14 | 61 | 39 |
| 15 | 62 | 38 |
| 16 | 61 | 39 |
| 17 | 61 | 39 |
| 18 | 61 | 39 |
| 19 | 61 | 39 |
| 20 | 62 | 38 |
| 21 | 62 | 38 |
| 22 | 62 | 38 |
| 23 | 62 | 38 |
| 24 | 63 | 37 |
| 25 | 63 | 37 |
| 26 | 63 | 37 |
| 27 | 64 | 36 |
| 28 | 64 | 36 |
| 29 | 64 | 36 |
| 30 | 64 | 36 |
| 31 | 64 | 36 |
Chance of precipitation in December
Rio Grande gets around 86 mm of rain over 7.8 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 25% and peaks near 26% 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 (%) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 |
| Rain chance (%) | |
|---|---|
| 1 | 25 |
| 2 | 25 |
| 3 | 25 |
| 4 | 25 |
| 5 | 25 |
| 6 | 25 |
| 7 | 25 |
| 8 | 25 |
| 9 | 26 |
| 10 | 26 |
| 11 | 26 |
| 12 | 26 |
| 13 | 26 |
| 14 | 26 |
| 15 | 26 |
| 16 | 26 |
| 17 | 26 |
| 18 | 26 |
| 19 | 26 |
| 20 | 26 |
| 21 | 26 |
| 22 | 25 |
| 23 | 25 |
| 24 | 24 |
| 25 | 24 |
| 26 | 24 |
| 27 | 24 |
| 28 | 23 |
| 29 | 23 |
| 30 | 23 |
| 31 | 23 |
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 35% of days. Sticky, muggy-or-worse air turns up on roughly 50% 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 (%) | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 |
| Comfortable (%) | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
| Humid (%) | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 23 | 23 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 |
| Muggy (%) | 30 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 34 | 34 | 35 | 36 | 36 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 35 | 35 | 34 | 33 |
| Oppressive (%) | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 17 | 18 | 19 | 20 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 13 | 23 | 31 | 30 | 3 |
| 2 | 13 | 22 | 31 | 31 | 3 |
| 3 | 13 | 22 | 31 | 31 | 4 |
| 4 | 13 | 21 | 31 | 31 | 4 |
| 5 | 12 | 21 | 31 | 31 | 5 |
| 6 | 12 | 20 | 31 | 32 | 5 |
| 7 | 12 | 20 | 30 | 32 | 6 |
| 8 | 11 | 19 | 30 | 32 | 7 |
| 9 | 11 | 19 | 30 | 33 | 7 |
| 10 | 11 | 18 | 30 | 34 | 8 |
| 11 | 10 | 18 | 30 | 34 | 8 |
| 12 | 10 | 17 | 29 | 35 | 9 |
| 13 | 9 | 17 | 29 | 36 | 10 |
| 14 | 8 | 16 | 28 | 36 | 11 |
| 15 | 8 | 16 | 28 | 37 | 12 |
| 16 | 8 | 15 | 27 | 37 | 13 |
| 17 | 7 | 15 | 26 | 38 | 14 |
| 18 | 7 | 15 | 25 | 38 | 15 |
| 19 | 6 | 14 | 24 | 38 | 17 |
| 20 | 6 | 14 | 23 | 38 | 18 |
| 21 | 6 | 14 | 23 | 38 | 19 |
| 22 | 6 | 14 | 22 | 38 | 20 |
| 23 | 5 | 13 | 21 | 38 | 22 |
| 24 | 5 | 13 | 21 | 38 | 23 |
| 25 | 5 | 13 | 21 | 37 | 24 |
| 26 | 5 | 13 | 20 | 37 | 25 |
| 27 | 5 | 13 | 20 | 36 | 26 |
| 28 | 4 | 13 | 20 | 35 | 27 |
| 29 | 4 | 12 | 20 | 35 | 28 |
| 30 | 4 | 12 | 20 | 34 | 29 |
| 31 | 4 | 12 | 20 | 33 | 30 |
Wind in December
Winds average 23 km/h in December.
Across December, daily wind ranges from about 23 km/h on the calmest days to 24 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) | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 23 | breezy |
| 5 | 23 | breezy |
| 6 | 23 | breezy |
| 7 | 23 | breezy |
| 8 | 23 | breezy |
| 9 | 23 | breezy |
| 10 | 23 | breezy |
| 11 | 23 | breezy |
| 12 | 23 | breezy |
| 13 | 23 | breezy |
| 14 | 23 | breezy |
| 15 | 23 | breezy |
| 16 | 23 | breezy |
| 17 | 23 | breezy |
| 18 | 23 | breezy |
| 19 | 23 | breezy |
| 20 | 23 | breezy |
| 21 | 23 | breezy |
| 22 | 23 | breezy |
| 23 | 23 | breezy |
| 24 | 23 | breezy |
| 25 | 23 | breezy |
| 26 | 23 | breezy |
| 27 | 23 | breezy |
| 28 | 23 | breezy |
| 29 | 23 | breezy |
| 30 | 23 | breezy |
| 31 | 23 | breezy |
Sunrise & sunset in December
Daylight runs from about 13 h 54 min at the start of December to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over December. Sunrise moves from 6:20 AM to 6:29 AM, and sunset from 8:16 PM to 8:34 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 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 |
| Sunrise (AM) | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 |
| Sunset (PM) | 8:16 | 8:17 | 8:18 | 8:19 | 8:20 | 8:20 | 8:21 | 8:22 | 8:23 | 8:23 | 8:24 | 8:25 | 8:25 | 8:26 | 8:27 | 8:27 | 8:28 | 8:28 | 8:29 | 8:29 | 8:30 | 8:30 | 8:31 | 8:31 | 8:32 | 8:32 | 8:32 | 8:33 | 8:33 | 8:33 | 8:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 6:20 | 8:16 |
| 2 | 14.0 | 6:20 | 8:17 |
| 3 | 14.0 | 6:20 | 8:18 |
| 4 | 14.0 | 6:20 | 8:19 |
| 5 | 14.0 | 6:20 | 8:20 |
| 6 | 14.0 | 6:20 | 8:20 |
| 7 | 14.0 | 6:20 | 8:21 |
| 8 | 14.0 | 6:20 | 8:22 |
| 9 | 14.0 | 6:20 | 8:23 |
| 10 | 14.0 | 6:20 | 8:23 |
| 11 | 14.1 | 6:21 | 8:24 |
| 12 | 14.1 | 6:21 | 8:25 |
| 13 | 14.1 | 6:21 | 8:25 |
| 14 | 14.1 | 6:21 | 8:26 |
| 15 | 14.1 | 6:22 | 8:27 |
| 16 | 14.1 | 6:22 | 8:27 |
| 17 | 14.1 | 6:22 | 8:28 |
| 18 | 14.1 | 6:23 | 8:28 |
| 19 | 14.1 | 6:23 | 8:29 |
| 20 | 14.1 | 6:24 | 8:29 |
| 21 | 14.1 | 6:24 | 8:30 |
| 22 | 14.1 | 6:24 | 8:30 |
| 23 | 14.1 | 6:25 | 8:31 |
| 24 | 14.1 | 6:25 | 8:31 |
| 25 | 14.1 | 6:26 | 8:32 |
| 26 | 14.1 | 6:26 | 8:32 |
| 27 | 14.1 | 6:27 | 8:32 |
| 28 | 14.1 | 6:28 | 8:33 |
| 29 | 14.1 | 6:28 | 8:33 |
| 30 | 14.1 | 6:29 | 8:33 |
| 31 | 14.1 | 6:29 | 8:34 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 7.08 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 7.08 kWh/m² in December across the year — December's 7.08 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) | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 | 7.0 |
| 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 | 7.0 | Intense |
| 2 | 7.0 | Intense |
| 3 | 7.0 | Intense |
| 4 | 7.0 | Intense |
| 5 | 7.0 | Intense |
| 6 | 7.0 | Intense |
| 7 | 7.1 | Intense |
| 8 | 7.1 | Intense |
| 9 | 7.1 | Intense |
| 10 | 7.1 | Intense |
| 11 | 7.1 | Intense |
| 12 | 7.0 | Intense |
| 13 | 7.0 | Intense |
| 14 | 7.0 | Intense |
| 15 | 7.0 | Intense |
| 16 | 7.0 | Intense |
| 17 | 7.0 | Intense |
| 18 | 7.0 | Intense |
| 19 | 7.0 | Intense |
| 20 | 7.0 | Intense |
| 21 | 7.0 | Intense |
| 22 | 7.0 | Intense |
| 23 | 7.0 | Intense |
| 24 | 7.0 | Intense |
| 25 | 7.0 | Intense |
| 26 | 7.0 | Intense |
| 27 | 7.0 | Intense |
| 28 | 7.0 | Intense |
| 29 | 7.0 | Intense |
| 30 | 7.0 | Intense |
| 31 | 7.0 | Intense |
Is December a good time to visit Rio Grande?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is one of the better times to visit Rio Grande for general sightseeing.
What to pack for Rio Grande in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Rio Grande sees daytime highs around 23°C and nights near 21°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 8 days see rain.
Sea temperature near Rio Grande in December
The nearest coast averages about 22°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in February at about 24°C and coldest in July near 14°C.
It's comfortable for a long swim from Nov 18 to May 4 — about 5.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 24 | 22 | 19 | 16 | 14 | 14 | 15 | 18 | 20 | 22 |
| Comfort | Refreshing | Warm | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Cool | Cool | Cool | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Refreshing |
| Feb | 24 | Warm |
| Mar | 24 | Refreshing |
| Apr | 22 | Refreshing |
| May | 19 | Cool |
| Jun | 16 | Cool |
| Jul | 14 | Bracing |
| Aug | 14 | Bracing |
| Sep | 15 | Cool |
| Oct | 18 | Cool |
| Nov | 20 | Cool |
| Dec | 22 | Refreshing |
UV index in Rio Grande 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 Rio Grande peaks around January 16 at about 12 (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) | 12 | 12 | 9 | 7 | 4 | 3 | 3 | 5 | 7 | 7 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 7 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 5 | Moderate |
| Sep | 7 | High |
| Oct | 7 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Where is Rio Grande?
Rio Grande sits at 32.0°S, 52.1°W, 7 m above sea level, in Brazil. The nearest listed city is São José do Norte, 6.0 km away.
Topography around Rio Grande
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Grande.
Within 3 km, the terrain around Rio Grande has only modest variations in elevation — a maximum elevation change of 11 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, significant variations in elevation — a maximum elevation change of 357 m.
The land around Rio Grande is covered by water (61%) and artificial surfaces (29%) within 3 km, water (52%) and grassland (20%) within 16 km, and water (48%) 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 Rio Grande (-32.035°, -52.0986°, 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).