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Oeiras, Brazil Snapshot 2026
Where is Oeiras?
Oeiras, Brazil
- Continent
- Americas
- Country
- Brazil
- City
- Oeiras
- Population
- 38.2K
- Coordinates
- -7.03°, -42.13°
Oeiras is a city in Brazil with a population of approximately 38.2K. Average temperatures range from 23°C (74°F) in July to 37°C (98°F) in October. The best time to visit is June, July, August.
Time in Oeiras right now
Open full time & time zone page 00:13 13
Thursday, June 18, 2026
IANA time zone
America/Fortaleza
Daylight saving
No DST
Next DST change
—
Live weather in Oeiras
Daylight in Oeiras today
View full sunrise & sunset page Sunrise
Sunset
Day length
11h 43m
Climate normals for Oeiras
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Wet April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September
Good October
Fair November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 31°C / 24°C | 36°C / 28°C | 17days (146 mm) Wet | 9.8h Good | 73% Muggy | 8.1 Very High | Poor | View Details |
| February | 31°C / 24°C | 36°C / 28°C | 15days (145 mm) Wet | 10.1h Excellent | 75% Muggy | 8.7 Very High | Poor | View Details |
| March | 31°C / 24°C | 36°C / 28°C | 18days (140 mm) Wet | 9.9h Good | 78% Humid | 8.6 Very High | Wet | View Details |
| April | 31°C / 24°C | 36°C / 27°C | 11days (67 mm) Wet | 10.3h Excellent | 72% Muggy | 8.2 Very High | Fair | View Details |
| May | 33°C / 24°C | 35°C / 26°C | 2days (9 mm) Excellent | 10.3h Excellent | 58% Moderate | 7.5 Very High | Good | View Details |
| June best | 33°C / 24°C | 33°C / 24°C | 0days (3 mm) Excellent | 10.1h Excellent | 51% Moderate | 7.1 Very High | Excellent | View Details |
| July best | 33°C / 23°C | 33°C / 23°C | 0days (0 mm) Excellent | 10.5h Excellent | 45% Moderate | 7.4 Very High | Excellent | View Details |
| August best | 35°C / 24°C | 34°C / 23°C | 0days (0 mm) Excellent | 11h Excellent | 39% Comfortable | 8.1 Very High | Excellent | View Details |
| September | 36°C / 25°C | 37°C / 25°C | 0days (1 mm) Excellent | 11.3h Excellent | 36% Comfortable | 8.9 Very High | Good | View Details |
| October | 37°C / 27°C | 38°C / 27°C | 2days (14 mm) Excellent | 11.1h Excellent | 38% Comfortable | 9.1 Very High | Fair | View Details |
| November | 35°C / 26°C | 38°C / 28°C | 5days (43 mm) Good | 10.6h Excellent | 51% Moderate | 8.8 Very High | Fair | View Details |
| December | 34°C / 25°C | 37°C / 28°C | 8days (61 mm) Wet | 10.6h Excellent | 59% Moderate | 8.2 Very High | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 31°C / 24°C . Feb: 31°C / 24°C . Mar: 31°C / 24°C . Apr: 31°C / 24°C . May: 33°C / 24°C . Jun: 33°C / 24°C . Jul: 33°C / 23°C . Aug: 35°C / 24°C . Sep: 36°C / 25°C . Oct: 37°C / 27°C . Nov: 35°C / 26°C . Dec: 34°C / 25°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 146 mm. Feb: 145 mm. Mar: 140 mm. Apr: 67 mm. May: 9 mm. Jun: 3 mm. Jul: 0 mm. Aug: 0 mm. Sep: 1 mm. Oct: 14 mm. Nov: 43 mm. Dec: 61 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 73%. Feb: 75%. Mar: 78%. Apr: 72%. May: 58%. Jun: 51%. Jul: 45%. Aug: 39%. Sep: 36%. Oct: 38%. Nov: 51%. Dec: 59%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 10 km/h . Feb: 10 km/h . Mar: 10 km/h . Apr: 12 km/h . May: 17 km/h . Jun: 19 km/h . Jul: 21 km/h . Aug: 20 km/h . Sep: 19 km/h . Oct: 16 km/h . Nov: 13 km/h . Dec: 11 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 8. Feb: UV 9. Mar: UV 9. Apr: UV 8. May: UV 8. Jun: UV 7. Jul: UV 7. Aug: UV 8. Sep: UV 9. Oct: UV 9. Nov: UV 9. Dec: UV 8.
Frequently Asked Questions
Oeiras has a population of approximately 38.2K.
The best months to visit Oeiras are June, July, August, when temperatures are pleasant and rainfall is lower.
Oeiras receives approximately 629mm of rainfall annually across 78 rainy days.
Oeiras is located in Brazil, in the Americas region.