Rio Tinto in Fall
In fall (March, April and May), Rio Tinto sees average daytime highs around 28°C and overnight lows near 25°C, with 446 mm of rain over about 70 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 41% of the time across fall, and the air most often feels oppressive.
Fall is Rio Tinto's weakest season of the year to visit on our travel score. Rio Tinto has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Rio Tinto's year-round climate.
- Avg daytime high
- 28°C
- 2nd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 446 mm
- 70 wet days
- Avg wind
- 17 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Mar · Apr · May
Temperature in Rio Tinto in Fall
Across fall, daytime highs hold fairly steady around 28°C.
A typical fall day in Rio Tinto reaches about 28°C and drops to 25°C overnight. The warmest of the three months is March, the coolest May.
Rio Tinto weather by month
How the three fall months (March, April and May) 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 | 28° / 25° | 71 | 18.6 | 12.4 | 4.9 |
| Feb | 28° / 25° | 87 | 19.4 | 12.2 | 4.4 |
| Mar | 29° / 25° | 119 | 21.8 | 12 | 4.3 |
| Apr | 28° / 25° | 163 | 24.1 | 11.9 | 4.0 |
| May | 28° / 24° | 164 | 24.2 | 11.7 | 4.5 |
| Jun | 27° / 24° | 178 | 24.1 | 11.6 | 4.6 |
| Jul | 26° / 23° | 157 | 24.9 | 11.6 | 4.7 |
| Aug | 26° / 23° | 77 | 20.9 | 11.8 | 5.3 |
| Sep | 27° / 23° | 47 | 16.7 | 12 | 5.9 |
| Oct | 27° / 24° | 32 | 14 | 12.2 | 6.2 |
| Nov | 28° / 25° | 28 | 11.4 | 12.3 | 6.3 |
| Dec | 28° / 25° | 42 | 14.5 | 12.4 | 5.5 |
Cloud cover in Fall
The sky is clear or mostly clear about 41% of the time across fall.
Chance of precipitation in Fall
Rio Tinto gets around 446 mm of rain over 70 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 17 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 06 min in early March to 11 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.2 kWh/m².
Hazard calendar for Rio Tinto
In fall, Rio Tinto overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Rio Tinto's rainy season runs February–July, when most of the year's rain falls.
Is fall a good time to visit Rio Tinto?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Rio Tinto for sightseeing.
What to pack for Rio Tinto in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Rio Tinto sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 70 days see rain.
Sea temperature near Rio Tinto in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 24 km away) is warmest in March at about 29°C and coldest in August near 26°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) | 28 | 29 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 27 | 27 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Tropical |
| Jun | 27 | Warm |
| Jul | 27 | Warm |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 27 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in Rio Tinto in Fall
Clear-sky midday UV across fall averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Rio Tinto peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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) | 13 | 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 | 13 | 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 Rio Tinto?
Rio Tinto sits at 6.8°S, 35.1°W, 35 m above sea level, in Brazil. The nearest listed city is Mamanguape, 6.0 km away.
Topography around Rio Tinto
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Tinto.
Within 3 km, the terrain around Rio Tinto has only modest variations in elevation — a maximum elevation change of 140 m around an average of 43 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 219 m; within 80 km, large variations in elevation — a maximum elevation change of 646 m.
The land around Rio Tinto is covered by grassland (40%) and trees (38%) within 3 km, grassland (38%), trees (27%) and cropland (22%) within 16 km, and grassland (47%) and water (28%) 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 Rio Tinto (-6.8031°, -35.0806°, elevation 35 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.