Promissão in Spring
In spring (September, October and November), Promissão sees average daytime highs around 31°C and overnight lows near 20°C, with 298 mm of rain over about 32 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across spring, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 39% of the time across spring, and the air most often feels muggy.
Spring is Promissão's 3rd-best season to visit on our travel score. For the whole year in context, see Promissão's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 298 mm
- 32 wet days
- Avg wind
- 10 km/h
- Travel score
- 4.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Promissão in Spring
Across spring, daytime highs hold fairly steady around 31°C.
A typical spring day in Promissão reaches about 31°C and drops to 20°C overnight. The warmest of the three months is October, the coolest September.
How spring really feels in Promissão
Once humidity and wind are folded in, spring brings about 47 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.
Promissão 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° / 22° | 236 | 21.7 | 13.2 | 3.4 |
| Feb | 31° / 22° | 170 | 18.1 | 12.7 | 3.6 |
| Mar | 30° / 22° | 133 | 16.7 | 12.2 | 4.1 |
| Apr | 30° / 20° | 58 | 7 | 11.5 | 5.7 |
| May | 27° / 17° | 49 | 5.3 | 11 | 7.3 |
| Jun | 27° / 16° | 30 | 3.6 | 10.7 | 7.9 |
| Jul | 27° / 15° | 20 | 2.9 | 10.8 | 8.0 |
| Aug | 29° / 17° | 24 | 3.1 | 11.3 | 6.6 |
| Sep | 31° / 19° | 57 | 6.9 | 11.9 | 5.2 |
| Oct | 31° / 20° | 102 | 11.1 | 12.5 | 4.2 |
| Nov | 31° / 21° | 140 | 14.2 | 13 | 4.0 |
| Dec | 31° / 22° | 187 | 19.5 | 13.3 | 3.6 |
Cloud cover in Spring
The sky is clear or mostly clear about 39% of the time across spring.
Chance of precipitation in Spring
Promissão gets around 298 mm of rain over 32 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 10 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 36 min in early September to 13 h 12 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 6.0 kWh/m².
Hazard calendar for Promissão
In spring, Promissão overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Promissão's monsoon runs November–March, when most of the year's rain falls.
Is spring a good time to visit Promissão?
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 Promissão for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Promissão in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Promissão sees daytime highs around 31°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 32 days see rain.
UV index in Promissão in Spring
Clear-sky midday UV across spring averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Promissão peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 6 (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) | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 9 | 11 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | Very high | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Promissão 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 Promissão is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 8 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) | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 18 | 22 | 15 | 8 | 8 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 9 | Good |
| Mar | 9 | Good |
| Apr | 10 | Good |
| May | 11 | Good |
| Jun | 11 | Good |
| Jul | 11 | Good |
| Aug | 18 | Moderate |
| Sep | 22 | Moderate |
| Oct | 15 | Moderate |
| Nov | 8 | Good |
| Dec | 8 | Good |
Where is Promissão?
Promissão sits at 21.5°S, 49.9°W, 428 m above sea level, in Brazil. The nearest listed city is Lins, 20 km away.
Topography around Promissão
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Promissão.
Within 3 km, the terrain around Promissão has only modest variations in elevation — a maximum elevation change of 73 m around an average of 416 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 155 m; within 80 km, significant variations in elevation — a maximum elevation change of 375 m.
The land around Promissão is covered by cropland (45%) and grassland (22%) within 3 km, cropland (69%) within 16 km, and cropland (57%) and grassland (20%) 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 Promissão (-21.5367°, -49.8581°, elevation 428 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.