São Gonçalo do Amarante in Summer
In summer (December, January and February), São Gonçalo do Amarante sees average daytime highs around 29°C and overnight lows near 25°C, with 282 mm of rain over about 47 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 35% of the time across summer, and the air most often feels oppressive.
Summer is São Gonçalo do Amarante's 3rd-best season to visit on our travel score. São Gonçalo do Amarante 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 São Gonçalo do Amarante's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 25°C
- Rainfall
- 282 mm
- 47 wet days
- Avg wind
- 17 km/h
- Travel score
- 4.5
- 3rd-best season
- Months
- Dec · Jan · Feb
Temperature in São Gonçalo do Amarante in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in São Gonçalo do Amarante reaches about 29°C and drops to 25°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in São Gonçalo do Amarante
Once humidity and wind are folded in, summer brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
São Gonçalo do Amarante weather by month
How the three summer months (December, January and February) 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 | 29° / 25° | 103 | 18.4 | 12.2 | 4.3 |
| Feb | 29° / 25° | 151 | 21.3 | 12.1 | 3.8 |
| Mar | 29° / 25° | 215 | 25.9 | 12 | 3.5 |
| Apr | 29° / 25° | 259 | 25.8 | 11.9 | 3.5 |
| May | 29° / 25° | 119 | 19.4 | 11.8 | 4.3 |
| Jun | 29° / 25° | 62 | 12.9 | 11.8 | 5.3 |
| Jul | 30° / 24° | 31 | 6.5 | 11.8 | 6.0 |
| Aug | 30° / 25° | 6 | 1.6 | 11.9 | 6.4 |
| Sep | 30° / 25° | 3 | 0.6 | 12 | 6.6 |
| Oct | 30° / 25° | 4 | 1 | 12.1 | 6.5 |
| Nov | 30° / 26° | 7 | 1.9 | 12.2 | 6.2 |
| Dec | 30° / 26° | 27 | 7.6 | 12.2 | 5.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 35% of the time across summer.
Chance of precipitation in Summer
São Gonçalo do Amarante gets around 282 mm of rain over 47 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 17 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 12 min in early December to 12 h 06 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.8 kWh/m².
Hazard calendar for São Gonçalo do Amarante
In summer, São Gonçalo do Amarante overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
São Gonçalo do Amarante's monsoon runs February–May, when most of the year's rain falls.
Is summer a good time to visit São Gonçalo do Amarante?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit São Gonçalo do Amarante for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for São Gonçalo do Amarante in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, São Gonçalo do Amarante sees daytime highs around 29°C and nights near 25°C. Pack light clothes, rain gear and sun protection. About 47 days see rain.
Sea temperature near São Gonçalo do Amarante in Summer
The nearest coast averages about 28°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 28 km away) is warmest in April at about 29°C and coldest in August near 27°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 | 28 | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 27 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Warm |
| Jul | 27 | Warm |
| Aug | 27 | Warm |
| Sep | 27 | Warm |
| Oct | 27 | Warm |
| Nov | 27 | Warm |
| Dec | 28 | Warm |
UV index in São Gonçalo do Amarante in Summer
Clear-sky midday UV across summer 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 São Gonçalo do Amarante peaks around March 16 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) | 13 | 14 | 16 | 14 | 11 | 10 | 10 | 10 | 12 | 12 | 12 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 14 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 11 | Extreme |
Where is São Gonçalo do Amarante?
São Gonçalo do Amarante sits at 3.6°S, 39.0°W, 23 m above sea level, in Brazil. The nearest listed city is Paracuru, 23 km away.
Topography around São Gonçalo do Amarante
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Gonçalo do Amarante.
Within 3 km, the terrain around São Gonçalo do Amarante has only modest variations in elevation — a maximum elevation change of 35 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.
The land around São Gonçalo do Amarante is covered by trees (37%) and grassland (31%) within 3 km, trees (41%), grassland (25%) and shrubs (23%) within 16 km, and water (30%), shrubs (27%) and trees (22%) 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 São Gonçalo do Amarante (-3.6072°, -38.9683°, elevation 23 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.