Viana in Fall
In fall (March, April and May), Viana sees average daytime highs around 32°C and overnight lows near 23°C, with 278 mm of rain over about 36 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across fall, daytime highs hold fairly steady around 32°C. The sky is clear or mostly clear about 17% of the time across fall, and the air most often feels oppressive.
Fall is Viana's 3rd-best season to visit on our travel score. For the whole year in context, see Viana's year-round climate.
- Avg daytime high
- 32°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 278 mm
- 36 wet days
- Avg wind
- 5 km/h
- Travel score
- 3.8
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Viana in Fall
Across fall, daytime highs hold fairly steady around 32°C.
A typical fall day in Viana reaches about 32°C and drops to 23°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Viana
Once humidity and wind are folded in, fall brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Viana 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 | 32° / 23° | 80 | 11 | 12.5 | 3.5 |
| Feb | 33° / 24° | 81 | 10.6 | 12.3 | 3.2 |
| Mar | 32° / 24° | 122 | 15.5 | 12.1 | 3.1 |
| Apr | 32° / 24° | 142 | 17.4 | 11.8 | 3.3 |
| May | 32° / 22° | 15 | 2.7 | 11.6 | 4.9 |
| Jun | 30° / 20° | 0 | 0 | 11.5 | 6.5 |
| Jul | 29° / 18° | 0 | 0 | 11.5 | 7.2 |
| Aug | 29° / 18° | 2 | 0.3 | 11.7 | 6.8 |
| Sep | 30° / 20° | 6 | 1.4 | 11.9 | 5.7 |
| Oct | 31° / 22° | 18 | 4.3 | 12.2 | 4.9 |
| Nov | 31° / 23° | 78 | 12.5 | 12.4 | 3.8 |
| Dec | 32° / 23° | 80 | 12.5 | 12.5 | 3.7 |
Cloud cover in Fall
The sky is clear or mostly clear about 17% of the time across fall.
Chance of precipitation in Fall
Viana gets around 278 mm of rain over 36 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 5 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early March to 11 h 30 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 4.8 kWh/m².
Hazard calendar for Viana
In fall, Viana overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Viana's rainy season runs November–April, when most of the year's rain falls.
Is fall a good time to visit Viana?
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 weaker month for outdoor sightseeing in Viana. The water and warmth also suit a beach or pool day.
What to pack for Viana in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Viana sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 36 days see rain.
Sea temperature near Viana in Fall
The nearest coast averages about 27°C across fall — 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 March at about 28°C and coldest in August near 20°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) | 27 | 28 | 28 | 27 | 25 | 23 | 21 | 20 | 22 | 24 | 26 | 26 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 28 | Warm |
| Apr | 27 | Warm |
| May | 25 | Warm |
| Jun | 23 | Refreshing |
| Jul | 21 | Refreshing |
| Aug | 20 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 24 | Warm |
| Nov | 26 | Warm |
| Dec | 26 | Warm |
UV index in Viana in Fall
Clear-sky midday UV across fall 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 Viana peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 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) | 14 | 14 | 15 | 13 | 9 | 7 | 6 | 6 | 10 | 11 | 12 | 12 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 13 | Extreme |
| May | 9 | Very high |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 6 | High |
| Sep | 10 | Very high |
| Oct | 11 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Viana 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 Viana is worst in July — around 47 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 23 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) | 23 | 24 | 29 | 34 | 35 | 41 | 47 | 43 | 32 | 27 | 25 | 26 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 24 | Moderate |
| Mar | 29 | Moderate |
| Apr | 34 | Moderate |
| May | 35 | Moderate |
| Jun | 41 | Poor |
| Jul | 47 | Poor |
| Aug | 43 | Poor |
| Sep | 32 | Moderate |
| Oct | 27 | Moderate |
| Nov | 25 | Moderate |
| Dec | 26 | Moderate |
Where is Viana?
Viana sits at 8.9°S, 13.4°E, 128 m above sea level, in Angola. The nearest listed city is Mulenvos, 6.0 km away.
Topography around Viana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Viana.
Within 3 km, the terrain around Viana has only modest variations in elevation — a maximum elevation change of 69 m around an average of 121 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 165 m; within 80 km, significant variations in elevation — a maximum elevation change of 585 m.
The land around Viana is covered by artificial surfaces (87%) within 3 km, artificial surfaces (53%) and grassland (42%) within 16 km, and water (33%), grassland (29%) and trees (28%) within 80 km.
Angola travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Prices
- ≈ 35% of US
- price level, 2025
- GDP per capita
- $3,129
- 2025
- Happiness
- 3.8 / 10
- World Happiness, 2017
- Homicide rate
- 4.1
- per 100k, 2016
- Road deaths
- 26.1
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Very low
- EF EPI 413
- 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 Viana (-8.9055°, 13.375°, elevation 128 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.