Porto Franco in Spring
In spring (September, October and November), Porto Franco sees average daytime highs around 33°C and overnight lows near 23°C, with 179 mm of rain over about 27 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 35°C in early September to 31°C by late November. The sky is clear or mostly clear about 38% of the time across spring, and the air most often feels oppressive.
Spring is Porto Franco's 3rd-best season to visit on our travel score. For the whole year in context, see Porto Franco's year-round climate.
- Avg daytime high
- 33°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 179 mm
- 27 wet days
- Avg wind
- 7 km/h
- Travel score
- 3.3
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Porto Franco in Spring
Over the season highs ease from about 35°C in early September to 31°C by late November.
A typical spring day in Porto Franco reaches about 33°C and drops to 23°C overnight. The warmest of the three months is September, the coolest September.
How spring really feels in Porto Franco
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.
Porto Franco 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 | 30° / 23° | 211 | 25.8 | 12.3 | 2.9 |
| Feb | 30° / 23° | 213 | 24.6 | 12.2 | 2.8 |
| Mar | 31° / 23° | 229 | 26.9 | 12 | 2.8 |
| Apr | 31° / 23° | 152 | 20.9 | 11.9 | 3.2 |
| May | 32° / 23° | 75 | 11.6 | 11.7 | 3.9 |
| Jun | 33° / 22° | 6 | 1.5 | 11.6 | 4.2 |
| Jul | 34° / 22° | 4 | 0.6 | 11.7 | 4.0 |
| Aug | 35° / 22° | 2 | 0.4 | 11.8 | 3.3 |
| Sep | 35° / 23° | 14 | 2.4 | 12 | 3.2 |
| Oct | 34° / 24° | 50 | 8.5 | 12.1 | 3.3 |
| Nov | 32° / 23° | 115 | 15.9 | 12.3 | 3.3 |
| Dec | 31° / 23° | 153 | 21 | 12.4 | 3.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 38% of the time across spring.
Chance of precipitation in Spring
Porto Franco gets around 179 mm of rain over 27 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 7 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 54 min in early September to 12 h 18 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 5.8 kWh/m².
Hazard calendar for Porto Franco
In spring, Porto Franco overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Porto Franco's monsoon runs November–April, when most of the year's rain falls.
Is spring a good time to visit Porto Franco?
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 Porto Franco. The water and warmth also suit a beach or pool day.
What to pack for Porto Franco in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Porto Franco sees daytime highs around 33°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 27 days see rain.
UV index in Porto Franco 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 Porto Franco peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 | 11 | 12 | 12 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | 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 | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in Porto Franco in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Porto Franco is worst in September — around 25 µg/m³ PM2.5 (moderate), about 3.9× the cleanest month (June, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 13 | 13 | 12 | 12 | 9 | 6 | 8 | 17 | 25 | 25 | 22 | 17 |
| Level | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 13 | Moderate |
| Mar | 12 | Moderate |
| Apr | 12 | Good |
| May | 9 | Good |
| Jun | 6 | Good |
| Jul | 8 | Good |
| Aug | 17 | Moderate |
| Sep | 25 | Moderate |
| Oct | 25 | Moderate |
| Nov | 22 | Moderate |
| Dec | 17 | Moderate |
Where is Porto Franco?
Porto Franco sits at 6.3°S, 47.4°W, 165 m above sea level, in Brazil. The nearest listed city is Tocantinópolis, 2.0 km away.
Topography around Porto Franco
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Porto Franco.
Within 3 km, the terrain around Porto Franco has only modest variations in elevation — a maximum elevation change of 66 m around an average of 152 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 180 m; within 80 km, significant variations in elevation — a maximum elevation change of 557 m.
The land around Porto Franco is covered by trees (36%) and grassland (29%) within 3 km, trees (50%) and grassland (43%) within 16 km, and trees (47%) and grassland (47%) 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 Porto Franco (-6.3383°, -47.3992°, elevation 165 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.