Niterói weather in January
In January, Niterói sees average daytime highs of 30°C and overnight lows near 24°C, with 145 mm of rain across 15.2 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 1st-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 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 Niterói's 10th-clearest and 8th-windiest month. For the whole year in context, see Niterói's year-round climate.
- Daytime high
- 30°
- 2nd warmest
- Overnight low
- 24°
- 11th coldest
- Rainfall
- 145 mm
- 15.2 wet days
- Daylight
- 13 h 18 min
- 6:24 AM – 7:40 PM
- Cloud cover
- 66%
- 10th clearest
- Wind
- 10 km/h
- 8th windiest
- Solar energy
- 6.05 kWh/m²
- Travel score
- 4.6
- out of 10
- Air quality
- Good
- PM2.5 9 µg/m³ · 2015
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 Niterói reaches about 30°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 33°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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| 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 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 24 |
| 2 | 29 | 24 |
| 3 | 29 | 24 |
| 4 | 29 | 24 |
| 5 | 29 | 24 |
| 6 | 29 | 24 |
| 7 | 29 | 24 |
| 8 | 29 | 24 |
| 9 | 29 | 24 |
| 10 | 29 | 24 |
| 11 | 29 | 24 |
| 12 | 29 | 24 |
| 13 | 29 | 24 |
| 14 | 30 | 24 |
| 15 | 30 | 24 |
| 16 | 30 | 24 |
| 17 | 30 | 24 |
| 18 | 30 | 24 |
| 19 | 30 | 24 |
| 20 | 30 | 24 |
| 21 | 30 | 24 |
| 22 | 30 | 24 |
| 23 | 30 | 24 |
| 24 | 30 | 24 |
| 25 | 30 | 24 |
| 26 | 30 | 25 |
| 27 | 30 | 25 |
| 28 | 30 | 25 |
| 29 | 30 | 25 |
| 30 | 30 | 25 |
| 31 | 30 | 25 |
How January really feels in Niterói
Once humidity and wind are folded in, January averages 31 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.
Niterói weather by month
How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 145 | 15.2 | 13.2 | 4.6 |
| Feb | 30° / 25° | 93 | 11.9 | 12.8 | 4.7 |
| Mar | 29° / 24° | 127 | 15.3 | 12.2 | 4.9 |
| Apr | 28° / 23° | 77 | 11.4 | 11.5 | 6.2 |
| May | 26° / 21° | 70 | 10.7 | 10.9 | 6.8 |
| Jun | 25° / 20° | 41 | 6.7 | 10.6 | 7.6 |
| Jul | 25° / 19° | 45 | 7.7 | 10.7 | 7.6 |
| Aug | 25° / 19° | 36 | 7.2 | 11.2 | 7.6 |
| Sep | 26° / 20° | 66 | 10.2 | 11.9 | 6.9 |
| Oct | 26° / 21° | 80 | 10.6 | 12.5 | 6.4 |
| Nov | 27° / 22° | 122 | 14.8 | 13.1 | 5.7 |
| Dec | 28° / 24° | 133 | 15.1 | 13.4 | 5.1 |
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 61%. 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 | 37 | 38 | 37 | 38 | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 40 | 39 | 40 | 40 | 39 | 39 | 39 | 40 | 40 | 39 | 39 | 40 | 40 | 41 | 41 | 42 | 43 | 44 | 43 |
| Cloudier (%) | 62 | 63 | 62 | 63 | 62 | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 60 | 61 | 60 | 60 | 61 | 61 | 61 | 60 | 60 | 61 | 61 | 60 | 60 | 59 | 59 | 58 | 57 | 56 | 57 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 38 | 62 |
| 2 | 37 | 63 |
| 3 | 38 | 62 |
| 4 | 37 | 63 |
| 5 | 38 | 62 |
| 6 | 37 | 63 |
| 7 | 37 | 63 |
| 8 | 37 | 63 |
| 9 | 38 | 62 |
| 10 | 38 | 62 |
| 11 | 38 | 62 |
| 12 | 38 | 62 |
| 13 | 40 | 60 |
| 14 | 39 | 61 |
| 15 | 40 | 60 |
| 16 | 40 | 60 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 39 | 61 |
| 20 | 40 | 60 |
| 21 | 40 | 60 |
| 22 | 39 | 61 |
| 23 | 39 | 61 |
| 24 | 40 | 60 |
| 25 | 40 | 60 |
| 26 | 41 | 59 |
| 27 | 41 | 59 |
| 28 | 42 | 58 |
| 29 | 43 | 57 |
| 30 | 44 | 56 |
| 31 | 43 | 57 |
Chance of precipitation in January
Niterói gets around 145 mm of rain over 15.2 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 48% and peaks near 52% 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 (%) | 52 | 51 | 51 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 45 | 45 | 45 |
| Rain chance (%) | |
|---|---|
| 1 | 52 |
| 2 | 51 |
| 3 | 51 |
| 4 | 51 |
| 5 | 50 |
| 6 | 50 |
| 7 | 49 |
| 8 | 49 |
| 9 | 49 |
| 10 | 48 |
| 11 | 48 |
| 12 | 47 |
| 13 | 47 |
| 14 | 47 |
| 15 | 47 |
| 16 | 47 |
| 17 | 48 |
| 18 | 48 |
| 19 | 48 |
| 20 | 48 |
| 21 | 48 |
| 22 | 48 |
| 23 | 48 |
| 24 | 48 |
| 25 | 47 |
| 26 | 47 |
| 27 | 46 |
| 28 | 46 |
| 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 64% 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Muggy (%) | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Oppressive (%) | 70 | 68 | 67 | 67 | 66 | 67 | 67 | 66 | 66 | 65 | 66 | 66 | 66 | 65 | 65 | 65 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 61 | 61 | 61 | 62 | 62 | 63 | 64 | 64 |
| Miserable (%) | 18 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 11 | 70 | 18 |
| 2 | 1 | 12 | 68 | 19 |
| 3 | 1 | 12 | 67 | 20 |
| 4 | 1 | 12 | 67 | 20 |
| 5 | 1 | 12 | 66 | 21 |
| 6 | 1 | 11 | 67 | 21 |
| 7 | 1 | 11 | 67 | 21 |
| 8 | 1 | 11 | 66 | 22 |
| 9 | 1 | 11 | 66 | 22 |
| 10 | 1 | 11 | 65 | 23 |
| 11 | 0 | 11 | 66 | 23 |
| 12 | 0 | 10 | 66 | 24 |
| 13 | 0 | 10 | 66 | 24 |
| 14 | 0 | 10 | 65 | 25 |
| 15 | 0 | 10 | 65 | 25 |
| 16 | 0 | 10 | 65 | 25 |
| 17 | 0 | 10 | 64 | 26 |
| 18 | 1 | 10 | 63 | 26 |
| 19 | 1 | 10 | 63 | 26 |
| 20 | 1 | 10 | 63 | 26 |
| 21 | 1 | 10 | 62 | 27 |
| 22 | 1 | 10 | 62 | 27 |
| 23 | 1 | 10 | 62 | 27 |
| 24 | 1 | 10 | 61 | 28 |
| 25 | 1 | 10 | 61 | 28 |
| 26 | 1 | 10 | 61 | 28 |
| 27 | 1 | 10 | 62 | 27 |
| 28 | 1 | 10 | 62 | 27 |
| 29 | 1 | 9 | 63 | 27 |
| 30 | 0 | 9 | 64 | 27 |
| 31 | 0 | 9 | 64 | 27 |
Wind in January
Winds average 10 km/h in January.
Across January, daily wind ranges from about 10 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | 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 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 6:14 AM to 6:34 AM, and sunset from 7:37 PM to 7:37 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) | 6:14 | 6:15 | 6:15 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:20 | 6:20 | 6:21 | 6:22 | 6:22 | 6:23 | 6:24 | 6:24 | 6:25 | 6:26 | 6:27 | 6:27 | 6:28 | 6:29 | 6:29 | 6:30 | 6:31 | 6:31 | 6:32 | 6:33 | 6:33 | 6:34 |
| Sunset (PM) | 7:37 | 7:37 | 7:38 | 7:38 | 7:38 | 7:38 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:40 | 7:40 | 7:40 | 7:40 | 7:40 | 7:40 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:39 | 7:38 | 7:38 | 7:38 | 7:37 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.4 | 6:14 | 7:37 |
| 2 | 13.4 | 6:15 | 7:37 |
| 3 | 13.4 | 6:15 | 7:38 |
| 4 | 13.4 | 6:16 | 7:38 |
| 5 | 13.4 | 6:17 | 7:38 |
| 6 | 13.4 | 6:17 | 7:38 |
| 7 | 13.3 | 6:18 | 7:39 |
| 8 | 13.3 | 6:18 | 7:39 |
| 9 | 13.3 | 6:19 | 7:39 |
| 10 | 13.3 | 6:20 | 7:39 |
| 11 | 13.3 | 6:20 | 7:39 |
| 12 | 13.3 | 6:21 | 7:39 |
| 13 | 13.3 | 6:22 | 7:39 |
| 14 | 13.3 | 6:22 | 7:40 |
| 15 | 13.3 | 6:23 | 7:40 |
| 16 | 13.3 | 6:24 | 7:40 |
| 17 | 13.3 | 6:24 | 7:40 |
| 18 | 13.2 | 6:25 | 7:40 |
| 19 | 13.2 | 6:26 | 7:40 |
| 20 | 13.2 | 6:27 | 7:39 |
| 21 | 13.2 | 6:27 | 7:39 |
| 22 | 13.2 | 6:28 | 7:39 |
| 23 | 13.2 | 6:29 | 7:39 |
| 24 | 13.2 | 6:29 | 7:39 |
| 25 | 13.1 | 6:30 | 7:39 |
| 26 | 13.1 | 6:31 | 7:39 |
| 27 | 13.1 | 6:31 | 7:39 |
| 28 | 13.1 | 6:32 | 7:38 |
| 29 | 13.1 | 6:33 | 7:38 |
| 30 | 13.1 | 6:33 | 7:38 |
| 31 | 13.1 | 6:34 | 7:37 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 6.05 kWh/m².
For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.15 kWh/m² in February across the year — January's 6.05 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) | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 |
| 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 | 6.0 | Intense |
| 2 | 6.0 | Intense |
| 3 | 6.0 | Intense |
| 4 | 6.0 | Intense |
| 5 | 6.0 | Intense |
| 6 | 6.0 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.2 | Intense |
| 31 | 6.2 | Intense |
Is January a good time to visit Niterói?
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 Niterói for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Niterói in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Niterói sees daytime highs around 30°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.
Sea temperature near Niterói 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 27 km away) is warmest in March at about 25°C and coldest in August near 21°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 | 25 | 25 | 24 | 23 | 22 | 21 | 21 | 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 | 25 | Warm |
| Apr | 25 | Warm |
| May | 24 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 24 | Warm |
UV index in Niterói 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 Niterói peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (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 | 12 | 9 | 6 | 6 | 5 | 8 | 6 | 11 | 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 | 6 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Niterói?
Niterói sits at 22.9°S, 43.1°W, 44 m above sea level, in Brazil. The nearest listed city is Rio de Janeiro, 8.0 km away.
Topography around Niterói
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Niterói.
Within 3 km, the terrain around Niterói has only modest variations in elevation — a maximum elevation change of 207 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 769 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.
The land around Niterói is covered by artificial surfaces (55%) and trees (26%) within 3 km, water (45%), trees (25%) and artificial surfaces (25%) within 16 km, and trees (38%) and water (34%) 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 Niterói (-22.8833°, -43.1036°, elevation 44 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).