Current Conditions
Niterói, Rio de Janeiro
Wind
E 6 mph10 km/h
Humidity
77%
Cloud Cover
82%
As of Tuesday, September 8, 2026 at 4:20 PM GMT-3
Today's Outlook
Day
Mostly cloudy and warm, with a high of 76°F24°C and morning low of 67°F19°C. Light wind from the ENE around 3 mph5 km/h. 50% chance of drizzle throughout the day. Humid.
Night
Mostly cloudy, with a low around 67°F19°C. Light wind from the ENE around 4 mph6 km/h. 81% chance of light rain throughout the night.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Light Rain | High 76°F24°C | Low 67°F19°C | Precip 0.21 in5.4 mm81% | Cloud 71% | Wind ENE 3 mph6 km/h | Wednesday: Mostly cloudy and warm, with a high of 76°F24°C and morning low of 67°F19°C. Light wind from the ENE around 3 mph5 km/h. 50% chance of drizzle throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the ENE around 4 mph6 km/h. 81% chance of light rain throughout the night. | |
| Rain | High 78°F26°C | Low 69°F20°C | Precip 0.37 in9.3 mm86% | Cloud 92% | Wind NE 4 mph7 km/h | Thursday: Overcast and warm, with a high of 78°F26°C and morning low of 69°F20°C. Light wind from the NE around 5 mph8 km/h. 60% chance of light rain throughout the day. Humid. Thursday Night: Overcast, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 86% chance of rain throughout the night. | |
| Showers | High 85°F29°CFeels 90°F32°C | Low 70°F21°C | Precip 0.12 in3 mm66% | Cloud 68% | Wind NE 5 mph8 km/h | Friday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 70°F21°C. Light wind from the NE around 5 mph8 km/h. 28% chance of drizzle in the morning. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the NE around 5 mph7 km/h. 66% chance of light rain overnight. | |
| Light Rain | High 80°F26°C | Low 72°F22°C | Precip 0.19 in4.7 mm45% | Cloud 71% | Wind WSW 5 mph8 km/h | Saturday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 72°F22°C. Light wind from the NW around 5 mph8 km/h. 38% chance of light rain throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the SW around 5 mph9 km/h. 45% chance of showers throughout the night. | |
| Light Rain | High 71°F21°C | Low 67°F19°C | Precip 0.37 in9.4 mm94% | Cloud 95% | Wind S 6 mph10 km/h | Sunday: Overcast and warm, with a high of 71°F21°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 82% chance of light rain throughout the day. Humid. Sunday Night: Overcast, with a low around 67°F19°C. Light wind from the S around 6 mph9 km/h. 94% chance of light rain throughout the night. | |
| Rain | High 68°F20°C | Low 66°F19°C | Precip 0.74 in18.7 mm95% | Cloud 97% | Wind ESE 5 mph9 km/h | Monday: Overcast and mild, with a high of 68°F20°C. Light wind from the ESE around 6 mph9 km/h. 95% chance of rain throughout the day. Monday Night: Overcast, with a low around 66°F19°C. Light wind from the ESE around 5 mph8 km/h. 92% chance of light rain throughout the night. | |
| Rain | High 72°F22°C | Low 66°F19°C | Precip 0.38 in9.6 mm83% | Cloud 80% | Wind SSW 5 mph8 km/h | Tuesday: Overcast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 65% chance of light rain throughout the day. Humid. Tuesday Night: Overcast, with a low around 66°F19°C. Light wind from the SSW around 5 mph8 km/h. 83% chance of rain throughout the night. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 9 | 76°F24°C | 67°F19°C | 0.21 in5.4 mm· 81% | 71% | Light Rain | ENE 3 mph6 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 67°F19°C. Light wind from the ENE around 3 mph5 km/h. 50% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 67°F19°C. Light wind from the ENE around 4 mph6 km/h. 81% chance of light rain throughout the night. | |||||||
| ThursdaySep 10 | 78°F26°C | 69°F20°C | 0.37 in9.3 mm· 86% | 92% | Rain | NE 4 mph7 km/h | |
DayOvercast and warm, with a high of 78°F26°C and morning low of 69°F20°C. Light wind from the NE around 5 mph8 km/h. 60% chance of light rain throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 86% chance of rain throughout the night. | |||||||
| FridaySep 11 | 85°F29°C Feels 90°F32°C | 70°F21°C | 0.12 in3 mm· 66% | 68% | Showers | NE 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 70°F21°C. Light wind from the NE around 5 mph8 km/h. 28% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 70°F21°C. Light wind from the NE around 5 mph7 km/h. 66% chance of light rain overnight. | |||||||
| SaturdaySep 12 | 80°F26°C | 72°F22°C | 0.19 in4.7 mm· 45% | 71% | Light Rain | WSW 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 72°F22°C. Light wind from the NW around 5 mph8 km/h. 38% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Light wind from the SW around 5 mph9 km/h. 45% chance of showers throughout the night. | |||||||
| SundaySep 13 | 71°F21°C | 67°F19°C | 0.37 in9.4 mm· 94% | 95% | Light Rain | S 6 mph10 km/h | |
DayOvercast and warm, with a high of 71°F21°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 82% chance of light rain throughout the day. Humid. NightOvercast, with a low around 67°F19°C. Light wind from the S around 6 mph9 km/h. 94% chance of light rain throughout the night. | |||||||
| MondaySep 14 | 68°F20°C | 66°F19°C | 0.74 in18.7 mm· 95% | 97% | Rain | ESE 5 mph9 km/h | |
DayOvercast and mild, with a high of 68°F20°C. Light wind from the ESE around 6 mph9 km/h. 95% chance of rain throughout the day. NightOvercast, with a low around 66°F19°C. Light wind from the ESE around 5 mph8 km/h. 92% chance of light rain throughout the night. | |||||||
| TuesdaySep 15 | 72°F22°C | 66°F19°C | 0.38 in9.6 mm· 83% | 80% | Rain | SSW 5 mph8 km/h | |
DayOvercast and warm, with a high of 72°F22°C and morning low of 66°F19°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 65% chance of light rain throughout the day. Humid. NightOvercast, with a low around 66°F19°C. Light wind from the SSW around 5 mph8 km/h. 83% chance of rain throughout the night. | |||||||
| WednesdaySep 16 | 70°F21°C | 66°F19°C | 0.28 in7.1 mm· 73% | 84% | Light Rain | SSW 6 mph9 km/h | |
DayOvercast and warm, with a high of 70°F21°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 73% chance of light rain throughout the day. NightOvercast, with a low around 66°F19°C. Light wind from the SSW around 5 mph8 km/h. 55% chance of light rain throughout the night. | |||||||
| ThursdaySep 17 | 72°F22°C | 65°F18°C | 0.12 in3 mm· 44% | 78% | Light Rain | E 6 mph9 km/h | |
DayOvercast and warm, with a high of 72°F22°C and morning low of 65°F18°C. Breezy from the ESE at 6 to 8 mph10 to 13 km/h. 41% chance of drizzle throughout the day. NightMostly cloudy, with a low around 65°F18°C. Breezy from the E at 5 to 7 mph8 to 11 km/h. 44% chance of light rain throughout the night. | |||||||
| FridaySep 18 | 76°F25°C | 66°F19°C | 0.04 in0.9 mm· 14% | 62% | Drizzle | E 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 66°F19°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 11% chance of drizzle around midday. Humid. NightMostly cloudy, with a low around 66°F19°C. Breezy from the E at 6 to 7 mph10 to 12 km/h. 14% chance of drizzle throughout the night. | |||||||
| SaturdaySep 19 | 78°F26°C | 67°F19°C | 0.06 in1.6 mm· 23% | 64% | Drizzle | E 6 mph9 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 67°F19°C. Breezy from the E at 6 to 7 mph9 to 12 km/h. 15% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 67°F20°C. Breezy from the E at 6 to 7 mph9 to 11 km/h. 23% chance of drizzle throughout the night. | |||||||
| SundaySep 20 | 79°F26°C | 68°F20°C | 0.12 in3.1 mm· 28% | 78% | Light Rain | ENE 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 68°F20°C. Light wind from the ENE around 5 mph9 km/h. 23% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the ENE around 5 mph8 km/h. 28% chance of light rain throughout the night. | |||||||
| MondaySep 21 | 79°F26°C | 69°F21°C | 0.16 in4 mm· 32% | 80% | Light Rain | E 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Breezy from the ESE at 6 to 7 mph9 to 11 km/h. 30% chance of light rain throughout the day. Humid. NightOvercast, with a low around 70°F21°C. Light wind from the ENE around 5 mph8 km/h. 32% chance of light rain throughout the night. | |||||||
| TuesdaySep 22 | 79°F26°C | 69°F21°C | 0.11 in2.8 mm· 27% | 79% | Drizzle | ESE 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 69°F21°C. Breezy from the SE at 5 to 7 mph8 to 11 km/h. 24% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Light wind from the E around 5 mph7 km/h. 27% chance of drizzle throughout the night. | |||||||
| WednesdaySep 23 | 80°F26°C | 69°F21°C | 0.08 in2 mm· 24% | 76% | Drizzle | ESE 5 mph8 km/h | |
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 69°F21°C. Breezy from the ESE at 5 to 7 mph8 to 11 km/h. 24% chance of drizzle throughout the day. Humid. NightOvercast, with a low around 69°F21°C. Light wind from the NE around 4 mph6 km/h. 22% chance of drizzle throughout the night. | |||||||
Nearby Cities
About This Forecast
This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 22.8833°S, 43.1036°W·Elevation: 44m·Timezone: America/Sao_Paulo·Population: 515,317