Araruama weather in January
In January, Araruama sees average daytime highs of 29°C and overnight lows near 24°C, with 178 mm of rain across 15.4 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 26% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Araruama's 10th-clearest and 6th-windiest month. For the whole year in context, see Araruama's year-round climate.
- Daytime high
- 29°
- 2nd warmest
- Overnight low
- 24°
- 11th coldest
- Rainfall
- 178 mm
- 15.4 wet days
- Daylight
- 13 h 18 min
- 6:21 AM – 7:37 PM
- Cloud cover
- 66%
- 10th clearest
- Wind
- 12 km/h
- 6th windiest
- Solar energy
- 6.19 kWh/m²
- Travel score
- 5.0
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 29°C through the month.
A typical January day in Araruama reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| 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 | 28 | 24 |
| 2 | 28 | 24 |
| 3 | 28 | 24 |
| 4 | 28 | 24 |
| 5 | 28 | 24 |
| 6 | 28 | 24 |
| 7 | 28 | 24 |
| 8 | 28 | 24 |
| 9 | 28 | 24 |
| 10 | 28 | 24 |
| 11 | 28 | 24 |
| 12 | 28 | 24 |
| 13 | 29 | 24 |
| 14 | 29 | 24 |
| 15 | 29 | 24 |
| 16 | 29 | 24 |
| 17 | 29 | 24 |
| 18 | 29 | 24 |
| 19 | 29 | 24 |
| 20 | 29 | 24 |
| 21 | 29 | 24 |
| 22 | 29 | 24 |
| 23 | 29 | 24 |
| 24 | 29 | 24 |
| 25 | 29 | 24 |
| 26 | 29 | 24 |
| 27 | 29 | 24 |
| 28 | 29 | 24 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
| 31 | 29 | 24 |
How January really feels in Araruama
Once humidity and wind are folded in, January averages 12 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.
Araruama weather by month
How January compares with the rest of the year at a glance. January is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 24° | 178 | 15.4 | 13.2 | 5.0 |
| Feb | 29° / 24° | 122 | 11.7 | 12.8 | 5.2 |
| Mar | 28° / 23° | 163 | 16.1 | 12.2 | 5.2 |
| Apr | 27° / 22° | 85 | 11.5 | 11.5 | 6.4 |
| May | 25° / 20° | 74 | 10.9 | 10.9 | 6.9 |
| Jun | 25° / 19° | 43 | 6.9 | 10.6 | 7.7 |
| Jul | 24° / 18° | 45 | 7.8 | 10.7 | 7.7 |
| Aug | 24° / 19° | 42 | 7.2 | 11.2 | 7.7 |
| Sep | 25° / 20° | 74 | 10 | 11.9 | 7.0 |
| Oct | 26° / 21° | 94 | 11.1 | 12.5 | 6.5 |
| Nov | 26° / 22° | 172 | 15.9 | 13.1 | 5.6 |
| Dec | 28° / 23° | 189 | 16.9 | 13.4 | 5.2 |
Cloud cover in January
The sky is clear or mostly clear about 26% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 60%. 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 (%) | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 40 | 39 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 43 | 43 | 43 | 44 |
| Cloudier (%) | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 60 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 57 | 57 | 57 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 38 | 62 |
| 2 | 38 | 62 |
| 3 | 38 | 62 |
| 4 | 38 | 62 |
| 5 | 38 | 62 |
| 6 | 38 | 62 |
| 7 | 38 | 62 |
| 8 | 39 | 61 |
| 9 | 39 | 61 |
| 10 | 40 | 60 |
| 11 | 39 | 61 |
| 12 | 40 | 60 |
| 13 | 40 | 60 |
| 14 | 40 | 60 |
| 15 | 41 | 59 |
| 16 | 41 | 59 |
| 17 | 41 | 59 |
| 18 | 41 | 59 |
| 19 | 41 | 59 |
| 20 | 41 | 59 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 41 | 59 |
| 24 | 41 | 59 |
| 25 | 41 | 59 |
| 26 | 42 | 58 |
| 27 | 42 | 58 |
| 28 | 43 | 57 |
| 29 | 43 | 57 |
| 30 | 43 | 57 |
| 31 | 44 | 56 |
Chance of precipitation in January
Araruama gets around 178 mm of rain over 15.4 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 49% and peaks near 56% 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 (%) | 56 | 55 | 54 | 54 | 53 | 52 | 51 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 48 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 45 | 45 | 45 | 45 |
| Rain chance (%) | |
|---|---|
| 1 | 56 |
| 2 | 55 |
| 3 | 54 |
| 4 | 54 |
| 5 | 53 |
| 6 | 52 |
| 7 | 51 |
| 8 | 51 |
| 9 | 50 |
| 10 | 50 |
| 11 | 49 |
| 12 | 49 |
| 13 | 49 |
| 14 | 48 |
| 15 | 48 |
| 16 | 48 |
| 17 | 49 |
| 18 | 49 |
| 19 | 49 |
| 20 | 48 |
| 21 | 48 |
| 22 | 48 |
| 23 | 48 |
| 24 | 47 |
| 25 | 47 |
| 26 | 46 |
| 27 | 46 |
| 28 | 45 |
| 29 | 45 |
| 30 | 45 |
| 31 | 45 |
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 71% 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 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
| Oppressive (%) | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 69 | 69 | 70 | 70 | 71 | 71 | 72 | 72 | 72 |
| Miserable (%) | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 10 | 69 | 20 |
| 2 | 1 | 10 | 69 | 20 |
| 3 | 1 | 11 | 69 | 19 |
| 4 | 1 | 10 | 70 | 19 |
| 5 | 1 | 10 | 70 | 19 |
| 6 | 1 | 10 | 70 | 19 |
| 7 | 1 | 10 | 70 | 19 |
| 8 | 1 | 10 | 70 | 19 |
| 9 | 1 | 10 | 70 | 19 |
| 10 | 1 | 10 | 70 | 19 |
| 11 | 1 | 10 | 70 | 19 |
| 12 | 1 | 9 | 71 | 19 |
| 13 | 1 | 9 | 71 | 19 |
| 14 | 1 | 9 | 71 | 19 |
| 15 | 1 | 9 | 71 | 19 |
| 16 | 1 | 9 | 71 | 19 |
| 17 | 1 | 9 | 71 | 19 |
| 18 | 1 | 9 | 71 | 19 |
| 19 | 1 | 9 | 71 | 19 |
| 20 | 1 | 9 | 71 | 19 |
| 21 | 1 | 9 | 71 | 19 |
| 22 | 1 | 10 | 70 | 19 |
| 23 | 1 | 10 | 69 | 20 |
| 24 | 1 | 10 | 69 | 20 |
| 25 | 1 | 9 | 70 | 20 |
| 26 | 1 | 9 | 70 | 20 |
| 27 | 1 | 9 | 71 | 19 |
| 28 | 1 | 9 | 71 | 19 |
| 29 | 1 | 8 | 72 | 19 |
| 30 | 1 | 8 | 72 | 19 |
| 31 | 1 | 8 | 72 | 19 |
Wind in January
Winds average 12 km/h in January.
Across January, daily wind ranges from about 12 km/h on the calmest days to 13 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 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Feels | calm | calm | calm | calm | 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 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 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 | light breeze |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 13 | light breeze |
| 23 | 13 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
| 31 | 13 | light breeze |
Sunrise & sunset in January
Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over January. Sunrise moves from 6:11 AM to 6:31 AM, and sunset from 7:34 PM to 7:34 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) | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 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 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 |
| Sunrise (AM) | 6:11 | 6:12 | 6:12 | 6:13 | 6:14 | 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 | 6:24 | 6:24 | 6:25 | 6:26 | 6:26 | 6:27 | 6:28 | 6:28 | 6:29 | 6:30 | 6:30 | 6:31 |
| Sunset (PM) | 7:34 | 7:34 | 7:35 | 7:35 | 7:35 | 7:35 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:37 | 7:37 | 7:37 | 7:37 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:36 | 7:35 | 7:35 | 7:35 | 7:35 | 7:34 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.4 | 6:11 | 7:34 |
| 2 | 13.4 | 6:12 | 7:34 |
| 3 | 13.4 | 6:12 | 7:35 |
| 4 | 13.4 | 6:13 | 7:35 |
| 5 | 13.4 | 6:14 | 7:35 |
| 6 | 13.4 | 6:14 | 7:35 |
| 7 | 13.3 | 6:15 | 7:36 |
| 8 | 13.3 | 6:15 | 7:36 |
| 9 | 13.3 | 6:16 | 7:36 |
| 10 | 13.3 | 6:17 | 7:36 |
| 11 | 13.3 | 6:17 | 7:36 |
| 12 | 13.3 | 6:18 | 7:36 |
| 13 | 13.3 | 6:19 | 7:36 |
| 14 | 13.3 | 6:19 | 7:36 |
| 15 | 13.3 | 6:20 | 7:37 |
| 16 | 13.3 | 6:21 | 7:37 |
| 17 | 13.3 | 6:21 | 7:37 |
| 18 | 13.2 | 6:22 | 7:37 |
| 19 | 13.2 | 6:23 | 7:36 |
| 20 | 13.2 | 6:24 | 7:36 |
| 21 | 13.2 | 6:24 | 7:36 |
| 22 | 13.2 | 6:25 | 7:36 |
| 23 | 13.2 | 6:26 | 7:36 |
| 24 | 13.2 | 6:26 | 7:36 |
| 25 | 13.1 | 6:27 | 7:36 |
| 26 | 13.1 | 6:28 | 7:36 |
| 27 | 13.1 | 6:28 | 7:35 |
| 28 | 13.1 | 6:29 | 7:35 |
| 29 | 13.1 | 6:30 | 7:35 |
| 30 | 13.1 | 6:30 | 7:35 |
| 31 | 13.1 | 6:31 | 7:34 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 6.19 kWh/m².
For context, solar energy here swings from a low near 3.53 kWh/m² to a high of 6.32 kWh/m² in February across the year — January's 6.19 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) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 |
| 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 | 6.2 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.2 | Intense |
| 8 | 6.2 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.2 | Intense |
| 12 | 6.2 | Intense |
| 13 | 6.2 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.3 | Intense |
| 21 | 6.3 | Intense |
| 22 | 6.3 | Intense |
| 23 | 6.3 | Intense |
| 24 | 6.3 | Intense |
| 25 | 6.3 | Intense |
| 26 | 6.3 | Intense |
| 27 | 6.3 | Intense |
| 28 | 6.3 | Intense |
| 29 | 6.3 | Intense |
| 30 | 6.3 | Intense |
| 31 | 6.4 | Intense |
Hazard calendar for Araruama
In January, Araruama sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Araruama's rainy season runs October–March, when most of the year's rain falls.
Is January a good time to visit Araruama?
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 Araruama for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Araruama in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Araruama sees daytime highs around 29°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.
Sea temperature near Araruama in January
The nearest coast averages about 25°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 28 km away) is warmest in March at about 26°C and coldest in September 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) | 25 | 25 | 26 | 25 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 25 | Warm |
| Mar | 26 | Warm |
| Apr | 25 | Warm |
| May | 24 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 24 | Warm |
UV index in Araruama 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 Araruama peaks around January 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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 | 13 | 12 | 9 | 7 | 6 | 5 | 8 | 7 | 12 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Araruama?
Araruama sits at 22.9°S, 42.3°W, 20 m above sea level, in Brazil. The nearest listed city is Iguaba Grande, 12 km away.
Topography around Araruama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Araruama.
Within 3 km, the terrain around Araruama has only modest variations in elevation — a maximum elevation change of 67 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 584 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.
The land around Araruama is covered by artificial surfaces (50%) and water (22%) within 3 km, water (37%), grassland (32%) and trees (21%) within 16 km, and water (45%) and trees (31%) 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 Araruama (-22.8728°, -42.3431°, elevation 20 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).