Viana weather in April
In April, Viana sees average daytime highs of 32°C and overnight lows near 24°C, with 142 mm of rain across 17.4 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.
Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 5% of the time in April, and the air most often feels oppressive.
Daylight stretches from about 11 h 54 min at the start of April to 11 h 42 min by month's end. Set against the rest of the year, April is Viana's 12th-clearest and 12th-windiest month. For the whole year in context, see Viana's year-round climate.
- Daytime high
- 32°
- 6th warmest
- Overnight low
- 24°
- 12th coldest
- Rainfall
- 142 mm
- 17.4 wet days
- Daylight
- 11 h 48 min
- 6:13 AM – 6:01 PM
- Cloud cover
- 81%
- 12th clearest
- Wind
- 5 km/h
- 12th windiest
- Solar energy
- 4.5 kWh/m²
- Travel score
- 3.3
- out of 10
Viana is city and municipality of Angola.
- Density
- 8,286/km²
- people per km²
- Founded
- 1963
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Day-to-day highs hold fairly steady near 32°C through the month.
A typical April day in Viana reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, April runs about 1°C cooler than March and on par with May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 24 |
| 2 | 32 | 24 |
| 3 | 32 | 24 |
| 4 | 32 | 24 |
| 5 | 32 | 24 |
| 6 | 32 | 24 |
| 7 | 32 | 24 |
| 8 | 32 | 24 |
| 9 | 32 | 24 |
| 10 | 32 | 24 |
| 11 | 32 | 24 |
| 12 | 32 | 24 |
| 13 | 32 | 24 |
| 14 | 32 | 24 |
| 15 | 31 | 24 |
| 16 | 31 | 24 |
| 17 | 31 | 24 |
| 18 | 31 | 24 |
| 19 | 31 | 24 |
| 20 | 31 | 24 |
| 21 | 31 | 24 |
| 22 | 31 | 24 |
| 23 | 31 | 24 |
| 24 | 31 | 24 |
| 25 | 31 | 24 |
| 26 | 31 | 24 |
| 27 | 31 | 24 |
| 28 | 31 | 24 |
| 29 | 31 | 24 |
| 30 | 32 | 24 |
How April really feels in Viana
Once humidity and wind are folded in, April averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Viana weather by month
How April compares with the rest of the year at a glance. April is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.
| 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 April
The sky is clear or mostly clear about 5% of the time in April, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 83%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 15 | 15 | 16 | 17 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 16 | 17 | 18 | 20 | 21 | 22 | 25 | 28 |
| Cloudier (%) | 85 | 85 | 84 | 83 | 84 | 84 | 83 | 83 | 84 | 84 | 83 | 83 | 83 | 84 | 84 | 85 | 85 | 85 | 86 | 86 | 86 | 86 | 84 | 83 | 82 | 80 | 79 | 78 | 75 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 15 | 85 |
| 2 | 15 | 85 |
| 3 | 16 | 84 |
| 4 | 17 | 83 |
| 5 | 16 | 84 |
| 6 | 16 | 84 |
| 7 | 17 | 83 |
| 8 | 17 | 83 |
| 9 | 16 | 84 |
| 10 | 16 | 84 |
| 11 | 17 | 83 |
| 12 | 17 | 83 |
| 13 | 17 | 83 |
| 14 | 16 | 84 |
| 15 | 16 | 84 |
| 16 | 15 | 85 |
| 17 | 15 | 85 |
| 18 | 15 | 85 |
| 19 | 14 | 86 |
| 20 | 14 | 86 |
| 21 | 14 | 86 |
| 22 | 14 | 86 |
| 23 | 16 | 84 |
| 24 | 17 | 83 |
| 25 | 18 | 82 |
| 26 | 20 | 80 |
| 27 | 21 | 79 |
| 28 | 22 | 78 |
| 29 | 25 | 75 |
| 30 | 28 | 72 |
Chance of precipitation in April
Viana gets around 142 mm of rain over 17.4 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 56% and peaks near 64% on the wettest days. The odds ease toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 57 | 58 | 59 | 60 | 60 | 61 | 62 | 63 | 63 | 64 | 64 | 64 | 64 | 64 | 64 | 63 | 62 | 61 | 59 | 58 | 56 | 54 | 52 | 50 | 47 | 45 | 42 | 39 | 36 | 34 |
| Rain chance (%) | |
|---|---|
| 1 | 57 |
| 2 | 58 |
| 3 | 59 |
| 4 | 60 |
| 5 | 60 |
| 6 | 61 |
| 7 | 62 |
| 8 | 63 |
| 9 | 63 |
| 10 | 64 |
| 11 | 64 |
| 12 | 64 |
| 13 | 64 |
| 14 | 64 |
| 15 | 64 |
| 16 | 63 |
| 17 | 62 |
| 18 | 61 |
| 19 | 59 |
| 20 | 58 |
| 21 | 56 |
| 22 | 54 |
| 23 | 52 |
| 24 | 50 |
| 25 | 47 |
| 26 | 45 |
| 27 | 42 |
| 28 | 39 |
| 29 | 36 |
| 30 | 34 |
Humidity in April
Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the oppressive band about 54% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 5 |
| Oppressive (%) | 59 | 58 | 57 | 56 | 53 | 52 | 51 | 50 | 49 | 48 | 48 | 47 | 47 | 47 | 48 | 48 | 49 | 50 | 51 | 52 | 53 | 55 | 56 | 58 | 60 | 61 | 62 | 64 | 65 | 67 |
| Miserable (%) | 36 | 37 | 38 | 39 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 47 | 48 | 48 | 48 | 48 | 48 | 47 | 46 | 45 | 44 | 42 | 41 | 39 | 37 | 36 | 34 | 32 | 30 | 28 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 5 | 59 | 36 |
| 2 | 5 | 58 | 37 |
| 3 | 5 | 57 | 38 |
| 4 | 5 | 56 | 39 |
| 5 | 6 | 53 | 41 |
| 6 | 6 | 52 | 42 |
| 7 | 6 | 51 | 43 |
| 8 | 6 | 50 | 44 |
| 9 | 6 | 49 | 45 |
| 10 | 6 | 48 | 46 |
| 11 | 6 | 48 | 47 |
| 12 | 6 | 47 | 47 |
| 13 | 5 | 47 | 48 |
| 14 | 5 | 47 | 48 |
| 15 | 5 | 48 | 48 |
| 16 | 4 | 48 | 48 |
| 17 | 4 | 49 | 48 |
| 18 | 3 | 50 | 47 |
| 19 | 3 | 51 | 46 |
| 20 | 3 | 52 | 45 |
| 21 | 3 | 53 | 44 |
| 22 | 3 | 55 | 42 |
| 23 | 3 | 56 | 41 |
| 24 | 3 | 58 | 39 |
| 25 | 3 | 60 | 37 |
| 26 | 3 | 61 | 36 |
| 27 | 4 | 62 | 34 |
| 28 | 4 | 64 | 32 |
| 29 | 5 | 65 | 30 |
| 30 | 5 | 67 | 28 |
Wind in April
Winds average 5 km/h in April, the calmest month.
Across April, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in April
Daylight runs from about 11 h 54 min at the start of April to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over April. Sunrise moves from 6:13 AM to 6:13 AM, and sunset from 6:09 PM to 5:55 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 | 6:13 |
| Sunset (PM) | 6:09 | 6:08 | 6:08 | 6:07 | 6:07 | 6:06 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:03 | 6:02 | 6:02 | 6:01 | 6:01 | 6:00 | 6:00 | 5:59 | 5:59 | 5:58 | 5:58 | 5:58 | 5:57 | 5:57 | 5:56 | 5:56 | 5:56 | 5:55 | 5:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:13 | 6:09 |
| 2 | 11.9 | 6:13 | 6:08 |
| 3 | 11.9 | 6:13 | 6:08 |
| 4 | 11.9 | 6:13 | 6:07 |
| 5 | 11.9 | 6:13 | 6:07 |
| 6 | 11.9 | 6:13 | 6:06 |
| 7 | 11.9 | 6:13 | 6:06 |
| 8 | 11.9 | 6:13 | 6:05 |
| 9 | 11.9 | 6:13 | 6:04 |
| 10 | 11.9 | 6:13 | 6:04 |
| 11 | 11.8 | 6:13 | 6:03 |
| 12 | 11.8 | 6:13 | 6:03 |
| 13 | 11.8 | 6:13 | 6:02 |
| 14 | 11.8 | 6:13 | 6:02 |
| 15 | 11.8 | 6:13 | 6:01 |
| 16 | 11.8 | 6:13 | 6:01 |
| 17 | 11.8 | 6:13 | 6:00 |
| 18 | 11.8 | 6:13 | 6:00 |
| 19 | 11.8 | 6:13 | 5:59 |
| 20 | 11.8 | 6:13 | 5:59 |
| 21 | 11.8 | 6:13 | 5:58 |
| 22 | 11.8 | 6:13 | 5:58 |
| 23 | 11.7 | 6:13 | 5:58 |
| 24 | 11.7 | 6:13 | 5:57 |
| 25 | 11.7 | 6:13 | 5:57 |
| 26 | 11.7 | 6:13 | 5:56 |
| 27 | 11.7 | 6:13 | 5:56 |
| 28 | 11.7 | 6:13 | 5:56 |
| 29 | 11.7 | 6:13 | 5:55 |
| 30 | 11.7 | 6:13 | 5:55 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.5 kWh/m².
For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 5.55 kWh/m² in February across the year — April's 4.5 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.7 | Bright |
| 7 | 4.7 | Bright |
| 8 | 4.7 | Bright |
| 9 | 4.7 | Bright |
| 10 | 4.7 | Bright |
| 11 | 4.6 | Bright |
| 12 | 4.6 | Bright |
| 13 | 4.6 | Bright |
| 14 | 4.5 | Bright |
| 15 | 4.5 | Bright |
| 16 | 4.5 | Bright |
| 17 | 4.5 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.4 | Bright |
| 22 | 4.4 | Bright |
| 23 | 4.4 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.4 | Bright |
| 27 | 4.4 | Bright |
| 28 | 4.4 | Bright |
| 29 | 4.4 | Bright |
| 30 | 4.4 | Bright |
Hazard calendar for Viana
In April, Viana sits inside 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 April a good time to visit Viana?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a weaker month for outdoor sightseeing in Viana.
What to pack for Viana in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Viana sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.
Sea temperature near Viana in April
The nearest coast averages about 27°C in April — 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 April
Clear-sky midday UV in April peaks around 13 (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 April
Average fine-particle pollution (PM2.5) through the year — so you can see where April 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).