Cachoeiras de Macacu in Fall
In fall (March, April and May), Cachoeiras de Macacu sees average daytime highs around 26°C and overnight lows near 18°C, with 508 mm of rain over about 52 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 28°C in early March to 23°C by late May. The sky is clear or mostly clear about 25% of the time across fall, and the air most often feels muggy.
Fall is Cachoeiras de Macacu's 3rd-best season to visit on our travel score. For the whole year in context, see Cachoeiras de Macacu's year-round climate.
- Avg daytime high
- 26°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 508 mm
- 52 wet days
- Avg wind
- 4 km/h
- Travel score
- 5.5
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Cachoeiras de Macacu in Fall
Over the season highs ease from about 28°C in early March to 23°C by late May.
A typical fall day in Cachoeiras de Macacu reaches about 26°C and drops to 18°C overnight. The warmest of the three months is March, the coolest May.
Cachoeiras de Macacu 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° / 21° | 362 | 24.1 | 13.2 | 3.9 |
| Feb | 29° / 20° | 277 | 20 | 12.8 | 4.0 |
| Mar | 28° / 20° | 287 | 24 | 12.2 | 4.3 |
| Apr | 26° / 18° | 134 | 16.4 | 11.5 | 5.6 |
| May | 24° / 16° | 87 | 12 | 10.9 | 6.7 |
| Jun | 24° / 15° | 49 | 7.7 | 10.7 | 7.5 |
| Jul | 23° / 14° | 48 | 7.1 | 10.8 | 7.6 |
| Aug | 24° / 14° | 51 | 7.7 | 11.2 | 7.5 |
| Sep | 25° / 16° | 108 | 12.3 | 11.9 | 6.6 |
| Oct | 25° / 18° | 159 | 16.5 | 12.5 | 5.6 |
| Nov | 26° / 19° | 297 | 21.6 | 13.1 | 4.7 |
| Dec | 27° / 20° | 367 | 24.7 | 13.4 | 4.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 25% of the time across fall.
Chance of precipitation in Fall
Cachoeiras de Macacu gets around 508 mm of rain over 52 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early March to 10 h 42 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 4.4 kWh/m².
Hazard calendar for Cachoeiras de Macacu
In fall, Cachoeiras de Macacu overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Cachoeiras de Macacu's rainy season runs November–March, when most of the year's rain falls.
Is fall a good time to visit Cachoeiras de Macacu?
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 Cachoeiras de Macacu for sightseeing.
What to pack for Cachoeiras de Macacu in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Cachoeiras de Macacu sees daytime highs around 26°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 52 days see rain.
UV index in Cachoeiras de Macacu in Fall
Clear-sky midday UV across fall 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 Cachoeiras de Macacu peaks around January 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 | 14 | 13 | 10 | 7 | 6 | 6 | 8 | 7 | 12 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 10 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 12 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Cachoeiras de Macacu in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Cachoeiras de Macacu is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 10 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) | 11 | 11 | 10 | 12 | 15 | 16 | 15 | 15 | 19 | 13 | 11 | 10 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 10 | Good |
| Apr | 12 | Good |
| May | 15 | Moderate |
| Jun | 16 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 19 | Moderate |
| Oct | 13 | Moderate |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Cachoeiras de Macacu?
Cachoeiras de Macacu sits at 22.5°S, 42.7°W, 63 m above sea level, in Brazil. The nearest listed city is Nova Friburgo, 24 km away.
Topography around Cachoeiras de Macacu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cachoeiras de Macacu.
Within 3 km, the terrain around Cachoeiras de Macacu has large variations in elevation — a maximum elevation change of 710 m around an average of 239 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,264 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.
The land around Cachoeiras de Macacu is covered by trees (80%) within 3 km, trees (86%) within 16 km, and trees (46%) and grassland (33%) 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 Cachoeiras de Macacu (-22.4625°, -42.6531°, elevation 63 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.