Oeiras in Spring
In spring (September, October and November), Oeiras sees average daytime highs around 36°C and overnight lows near 26°C, with 60 mm of rain over about 8 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 36°C. The sky is clear or mostly clear about 58% of the time across spring, and the air most often feels comfortable.
Spring is Oeiras's weakest season of the year to visit on our travel score. For the whole year in context, see Oeiras's year-round climate.
- Avg daytime high
- 36°C
- warmest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 60 mm
- 8 wet days
- Avg wind
- 11 km/h
- Travel score
- 2.3
- weakest season of the year
- Months
- Sep · Oct · Nov
Temperature in Oeiras in Spring
Across spring, daytime highs hold fairly steady around 36°C.
A typical spring day in Oeiras reaches about 36°C and drops to 26°C overnight. The warmest of the three months is October, the coolest September.
How spring really feels in Oeiras
Once humidity and wind are folded in, spring brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Oeiras weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 24° | 165 | 19.7 | 12.4 | 3.0 |
| Feb | 32° / 23° | 166 | 18.2 | 12.2 | 3.1 |
| Mar | 32° / 23° | 161 | 20.5 | 12 | 3.2 |
| Apr | 32° / 24° | 90 | 13.2 | 11.8 | 3.6 |
| May | 33° / 24° | 33 | 4.8 | 11.7 | 3.8 |
| Jun | 33° / 24° | 3 | 0.5 | 11.6 | 4.2 |
| Jul | 34° / 23° | 2 | 0.4 | 11.6 | 4.1 |
| Aug | 35° / 24° | 0 | 0.1 | 11.8 | 3.4 |
| Sep | 36° / 25° | 1 | 0.2 | 12 | 2.4 |
| Oct | 37° / 27° | 14 | 2 | 12.2 | 2.0 |
| Nov | 35° / 26° | 44 | 6.2 | 12.3 | 2.5 |
| Dec | 34° / 25° | 81 | 10.7 | 12.4 | 2.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 58% of the time across spring.
Chance of precipitation in Spring
Oeiras gets around 60 mm of rain over 8 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 11 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 54 min in early September to 12 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.5 kWh/m².
Hazard calendar for Oeiras
None of Oeiras's seasonal hazards peak in spring. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Oeiras's rainy season runs December–April, when most of the year's rain falls.
Is spring a good time to visit Oeiras?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Oeiras.
What to pack for Oeiras in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Oeiras sees daytime highs around 36°C and nights near 26°C. Pack light clothes and sun protection. About 8 days see rain.
UV index in Oeiras in Spring
Clear-sky midday UV across spring averages 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 Oeiras peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very 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 | 15 | 15 | 13 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Where is Oeiras?
Oeiras sits at 7.0°S, 42.1°W, 181 m above sea level, in Brazil. The nearest listed city is Picos, 74 km away.
Topography around Oeiras
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oeiras.
Within 3 km, the terrain around Oeiras has only modest variations in elevation — a maximum elevation change of 114 m around an average of 196 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 173 m; within 80 km, significant variations in elevation — a maximum elevation change of 468 m.
The land around Oeiras is covered by shrubs (53%) within 3 km, shrubs (68%) and trees (24%) within 16 km, and shrubs (56%) and trees (33%) 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 Oeiras (-7.0253°, -42.1311°, elevation 181 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.