Virú weather in September

In September, Virú sees average daytime highs of 21°C and overnight lows near 16°C, with 5 mm of rain across 1.3 wet days and about 12 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 38% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Virú's 5th-clearest and 1st-windiest month. For the whole year in context, see Virú's year-round climate.

Daytime high
21°
11th warmest
Overnight low
16°
2nd coldest
Rainfall
5 mm
1.3 wet days
Daylight
12 hours
6:11 AM – 6:08 PM
Cloud cover
52%
5th clearest
Wind
11 km/h
1st windiest
Solar energy
6.1 kWh/m²
Travel score
7.9
out of 10

Virú is capital city of Virú, La Libertad, Peru.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical September day in Virú reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 23°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12116
22116
32116
42116
52116
62116
72116
82116
92116
102116
112116
122116
132116
142116
152116
162116
172116
182116
192116
202116
212116
222116
232116
242116
252116
262116
272116
282116
292116
302116

Virú weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 20°258.112.46.6
Feb26° / 21°461212.35.7
Mar26° / 21°4713.112.15.7
Apr25° / 20°154.711.87.4
May24° / 19°4111.68.6
Jun23° / 18°30.311.58.6
Jul22° / 17°20.211.68.5
Aug21° / 16°30.411.78.4
Sep21° / 16°51.3127.9
Oct22° / 17°71.712.27.7
Nov23° / 17°61.612.47.7
Dec24° / 19°14412.57.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 26% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18020
27822
37822
47624
57525
67426
77327
87129
97030
106931
116832
126634
136535
146436
156238
166139
176040
185941
195941
205842
215743
225743
235644
245644
255545
265545
275545
285545
295545
305545

Chance of precipitation in September

Any precipitation

Virú gets around 5 mm of rain over 1.3 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 4% and peaks near 6% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
62
72
83
93
103
113
123
134
144
154
164
175
185
195
205
216
226
236
246
256
266
276
286
296
306

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
163343
263343
363343
463343
563343
663343
764333
864333
964333
1065323
1165323
1266313
1366313
1467303
1568293
1668293
1769283
1869283
1970273
2070273
2170273
2270273
2370273
2470273
2570273
2670273
2771272
2870282
2969292
3068302

Wind in September

Winds average 11 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:20 AM to 6:02 AM, and sunset from 6:10 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:206:10
211.86:196:10
311.96:186:10
411.96:186:10
511.96:176:09
611.96:176:09
711.96:166:09
811.96:166:09
911.96:156:09
1011.96:146:09
1111.96:146:09
1211.96:136:08
1311.96:136:08
1411.96:126:08
1511.96:116:08
1612.06:116:08
1712.06:106:08
1812.06:096:08
1912.06:096:08
2012.06:086:07
2112.06:086:07
2212.06:076:07
2312.06:066:07
2412.06:066:07
2512.06:056:07
2612.06:056:07
2712.06:046:07
2812.06:036:06
2912.16:036:06
3012.16:026:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.1 kWh/m².

For context, solar energy here swings from a low near 5.09 kWh/m² to a high of 6.68 kWh/m² in November across the year — September's 6.1 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Bright
56.0Intense
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Is September a good time to visit Virú?

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

7.9
Sightseeing
5th-best month of the year
5.0
Beach & pool
12th-best month of the year

September is one of the better times to visit Virú for general sightseeing.

What to pack for Virú in September

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

In September, Virú sees daytime highs around 21°C and nights near 16°C. Pack sun protection.

sun protection

Sea temperature near Virú in September

The nearest coast averages about 17°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in February at about 22°C and coldest in October near 17°C.

It's comfortable for a long swim from Jan 3 to Apr 15 — about 3.4 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb22Refreshing
Mar22Refreshing
Apr20Cool
May19Cool
Jun19Cool
Jul18Cool
Aug18Cool
Sep17Cool
Oct17Cool
Nov18Cool
Dec19Cool

UV index in Virú in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks 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 Virú peaks around February 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 16Jun 23UV 10
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep11Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Virú?

Virú sits at 8.4°S, 78.8°W, 75 m above sea level, in Peru. The nearest listed city is Moche, 39 km away.

Topography around Virú

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

Within 3 km, the terrain around Virú has significant variations in elevation — a maximum elevation change of 293 m around an average of 79 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,713 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,357 m.

The land around Virú is covered by trees (34%) and cropland (29%) within 3 km, bare terrain (53%) within 16 km, and bare terrain (32%), water (28%) and grassland (23%) within 80 km.

3 km
293 m
16 km
1,713 m
80 km
4,357 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Moche 39 km · Laredo 43 km · Trujillo 45 km · Coishco 69 km · Santiago de Cao 74 km · Chimbote 75 km · Chocope 87 km · Paiján 97 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Virú (-8.4155°, -78.752°, elevation 75 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).