Porto Belo in Spring
In spring (September, October and November), Porto Belo sees average daytime highs around 23°C and overnight lows near 18°C, with 363 mm of rain over about 40 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 21°C in early September to 25°C by late November. The sky is clear or mostly clear about 17% of the time across spring, and the air most often feels humid.
Spring is Porto Belo's 3rd-best season to visit on our travel score. For the whole year in context, see Porto Belo's year-round climate.
- Avg daytime high
- 23°C
- 3rd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 363 mm
- 40 wet days
- Avg wind
- 13 km/h
- Travel score
- 6.0
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Porto Belo in Spring
Over the season highs climb from about 21°C in early September to 25°C by late November.
A typical spring day in Porto Belo reaches about 23°C and drops to 18°C overnight. The warmest of the three months is November, the coolest September.
Porto Belo 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 | 28° / 23° | 186 | 19.3 | 13.5 | 4.9 |
| Feb | 28° / 23° | 164 | 17.8 | 13 | 4.8 |
| Mar | 27° / 22° | 127 | 17.6 | 12.2 | 5.4 |
| Apr | 25° / 20° | 87 | 10.9 | 11.4 | 6.6 |
| May | 23° / 17° | 107 | 10.5 | 10.7 | 6.7 |
| Jun | 21° / 15° | 94 | 9.3 | 10.3 | 6.5 |
| Jul | 20° / 14° | 86 | 9.1 | 10.5 | 6.4 |
| Aug | 21° / 15° | 87 | 9 | 11 | 6.5 |
| Sep | 21° / 16° | 131 | 12.3 | 11.8 | 6.0 |
| Oct | 23° / 18° | 119 | 13.3 | 12.7 | 6.0 |
| Nov | 25° / 20° | 113 | 14 | 13.3 | 6.1 |
| Dec | 27° / 21° | 126 | 15.1 | 13.7 | 5.6 |
Cloud cover in Spring
The sky is clear or mostly clear about 17% of the time across spring.
Chance of precipitation in Spring
Porto Belo gets around 363 mm of rain over 40 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 13 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 24 min in early September to 13 h 36 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 4.6 kWh/m².
Is spring a good time to visit Porto Belo?
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 reasonable time to visit Porto Belo for sightseeing.
What to pack for Porto Belo in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Porto Belo sees daytime highs around 23°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 40 days see rain.
Sea temperature near Porto Belo in Spring
The nearest coast averages about 21°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 18 km away) is warmest in February at about 26°C and coldest in August near 18°C.
It's comfortable for a long swim from Oct 4 to Jun 11 — about 8.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 26 | 26 | 26 | 24 | 22 | 20 | 18 | 18 | 19 | 21 | 23 | 25 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 26 | Warm |
| Feb | 26 | Warm |
| Mar | 26 | Warm |
| Apr | 24 | Warm |
| May | 22 | Refreshing |
| Jun | 20 | Cool |
| Jul | 18 | Cool |
| Aug | 18 | Cool |
| Sep | 19 | Cool |
| Oct | 21 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 25 | Warm |
UV index in Porto Belo in Spring
Clear-sky midday UV across spring averages around 10 (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 Belo peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (moderate).
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 | 13 | 11 | 8 | 5 | 5 | 5 | 6 | 8 | 9 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 8 | Very high |
| May | 5 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Where is Porto Belo?
Porto Belo sits at 27.2°S, 48.6°W, 3 m above sea level, in Brazil. The nearest listed city is Bombinhas, 6.0 km away.
Topography around Porto Belo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Porto Belo.
Within 3 km, the terrain around Porto Belo has significant variations in elevation — a maximum elevation change of 330 m around an average of 56 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 665 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,273 m.
The land around Porto Belo is covered by trees (48%) and water (33%) within 3 km, water (60%) and trees (25%) within 16 km, and trees (48%) and water (39%) 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 Belo (-27.1578°, -48.5531°, elevation 3 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.