Viseu weather in October

In October, Viseu sees average daytime highs of 31°C and overnight lows near 24°C, with 21 mm of rain across 6.1 wet days and about 12 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 49% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of October to 12 hours by month's end. Set against the rest of the year, October is Viseu's 3rd-clearest and 1st-windiest month. For the whole year in context, see Viseu's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
24°
11th coldest
Rainfall
21 mm
6.1 wet days
Daylight
12 hours
5:49 AM – 5:50 PM
Cloud cover
45%
3rd clearest
Wind
14 km/h
1st windiest
Solar energy
6.36 kWh/m²
Travel score
4.9
out of 10

Viseu is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical October day in Viseu reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 32°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How October really feels in Viseu

Once humidity and wind are folded in, October averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Viseu weather by month

How October compares with the rest of the year at a glance. October is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°25626.712.13.1
Feb29° / 24°36926.9122.9
Mar29° / 23°47830.3122.8
Apr29° / 24°49129.4122.8
May30° / 24°32028.511.93.0
Jun30° / 23°16025.111.93.3
Jul30° / 23°11623.911.93.6
Aug30° / 24°5018.3124.2
Sep31° / 24°279.3124.8
Oct31° / 24°216.1124.9
Nov31° / 24°297.212.14.6
Dec31° / 24°7916.112.13.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 27% of October, with mostly cloudy or overcast conditions the remaining 23%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38218
48218
58218
68020
78020
87921
97921
107921
117723
127723
137723
147624
157624
167624
177624
187624
197624
207624
217624
227624
237525
247525
257426
267327
277228
287228
297129
307030
317030

Chance of precipitation in October

Any precipitation

Viseu gets around 21 mm of rain over 6.1 wet days in October, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
419
519
620
720
820
921
1021
1121
1221
1322
1422
1522
1621
1721
1821
1921
2021
2121
2220
2320
2420
2520
2619
2719
2819
2919
3019
3120

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the oppressive band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1991
2991
3991
4991
5991
6991
7982
8982
9982
10982
11982
12982
13982
14982
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26982
27982
28982
29982
30982
31982

Wind in October

Winds average 14 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 14 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 hours at the start of October to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over October. Sunrise moves from 5:53 AM to 5:47 AM, and sunset from 5:54 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:535:54
212.05:535:54
312.05:535:53
412.05:525:53
512.05:525:53
612.05:525:52
712.05:515:52
812.05:515:52
912.05:515:52
1012.05:505:52
1112.05:505:51
1212.05:505:51
1312.05:505:51
1412.05:495:51
1512.05:495:51
1612.05:495:50
1712.05:495:50
1812.05:485:50
1912.05:485:50
2012.05:485:50
2112.05:485:50
2212.05:485:50
2312.05:485:50
2412.05:475:49
2512.05:475:49
2612.05:475:49
2712.05:475:49
2812.05:475:49
2912.05:475:49
3012.05:475:49
3112.05:475:49

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 6.36 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.36 kWh/m² in October across the year — October's 6.36 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in October

Hazard calendar for Viseu

In seasonPeak

None of Viseu's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Viseu's monsoon runs January–May, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Viseu?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.9
Sightseeing
1st-best month of the year
7.4
Beach & pool
1st-best month of the year

October is a reasonable time to visit Viseu for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Viseu in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Viseu sees daytime highs around 31°C and nights near 24°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Viseu in October

The nearest coast averages about 28°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in May at about 29°C and coldest in September near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Warm
Sep28Warm
Oct28Warm
Nov28Tropical
Dec28Tropical

UV index in Viseu in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks 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 Viseu peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 19UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Viseu in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Viseu is worst in February — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (July, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2019 µg/m³Jul 127 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar19Moderate
Apr14Moderate
May8Good
Jun7Good
Jul7Good
Aug8Good
Sep10Good
Oct12Good
Nov18Moderate
Dec18Moderate
Location & terrain

Where is Viseu?

Viseu sits at 1.2°S, 46.1°W, 13 m above sea level, in Brazil. The nearest listed city is Carutapera, 13 km away.

Topography around Viseu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Viseu.

Within 3 km, the terrain around Viseu has only modest variations in elevation — a maximum elevation change of 47 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 89 m; within 80 km, only modest variations in elevation — a maximum elevation change of 180 m.

The land around Viseu is covered by trees (41%) and grassland (22%) within 3 km, trees (36%) and mangroves (34%) within 16 km, and trees (35%) and water (34%) within 80 km.

3 km
47 m
16 km
89 m
80 km
180 m
treesgrasslandartificial surfaceswaterwetlandmangroves
October weather nearby: Carutapera 13 km · Cândido Mendes 54 km · Augusto Corrêa 58 km · Bragança 71 km · Cachoeira do Piriá 77 km · Tracuateua 86 km · Santa Luzia do Pará 92 km · Maracaçumé 96 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
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Viseu (-1.1967°, -46.14°, elevation 13 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).