Laredo weather in September

In September, Laredo sees average daytime highs of 22°C and overnight lows near 15°C, with 2 mm of rain across 0.6 wet days and about 12 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 44% 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 Laredo's 5th-clearest and 1st-windiest month. For the whole year in context, see Laredo's year-round climate.

Daytime high
22°
10th warmest
Overnight low
15°
2nd coldest
Rainfall
2 mm
0.6 wet days
Daylight
12 hours
6:11 AM – 6:09 PM
Cloud cover
50%
5th clearest
Wind
7 km/h
1st windiest
Solar energy
6.52 kWh/m²
Travel score
8.3
out of 10

Laredo is town in La Libertad, Peru.

Founded
1961

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 22°C through the month.

A typical September day in Laredo reaches about 22°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°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)
12215
22215
32215
42215
52215
62215
72215
82215
92215
102215
112215
122215
132215
142215
152215
162215
172215
182215
192215
202215
212215
222315
232315
242315
252315
262315
272315
282315
292315
302315

Laredo weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 19°266.812.46.7
Feb26° / 20°5311.512.35.7
Mar26° / 20°661612.15.4
Apr25° / 18°266.711.87.1
May24° / 17°40.811.68.6
Jun23° / 16°10.111.58.8
Jul22° / 15°10.111.68.8
Aug22° / 14°10.111.78.7
Sep22° / 15°20.6128.3
Oct23° / 15°41.112.28.1
Nov24° / 16°4112.48.1
Dec25° / 17°92.312.57.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27921
37822
47723
57624
67525
77426
87327
97228
107129
117030
126832
136733
146634
156535
166337
176337
186139
196040
205941
215842
225842
235743
245743
255644
265644
275644
285644
295545
305644

Chance of precipitation in September

Any precipitation

Laredo gets around 2 mm of rain over 0.6 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
152
162
172
182
192
203
213
223
233
243
253
263
273
283
293
303

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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
128612
228711
328711
428711
528711
628810
728810
828810
92899
102899
112899
122899
132908
141918
151918
162908
172908
182908
192899
202899
212899
222899
232899
2428810
2528810
2628810
2728810
2828810
2928810
3038710

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:03 AM, and sunset from 6:11 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:206:11
211.96:206:11
311.96:196:11
411.96:196:11
511.96:186:10
611.96:176:10
711.96:176:10
811.96:166:10
911.96:166:10
1011.96:156:10
1111.96:146:10
1211.96:146:09
1311.96:136:09
1411.96:136:09
1511.96:126:09
1612.06:116:09
1712.06:116:09
1812.06:106:09
1912.06:106:08
2012.06:096:08
2112.06:086:08
2212.06:086:08
2312.06:076:08
2412.06:076:08
2512.06:066:08
2612.06:066:07
2712.06:056:07
2812.06:046:07
2912.16:046:07
3012.16:036:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.52 kWh/m².

For context, solar energy here swings from a low near 5.28 kWh/m² to a high of 7.02 kWh/m² in November across the year — September's 6.52 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
Planning a trip in September

Is September a good time to visit Laredo?

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

8.3
Sightseeing
5th-best month of the year
6.1
Beach & pool
10th-best month of the year

September is one of the better times to visit Laredo for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Laredo in September

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

In September, Laredo sees daytime highs around 22°C and nights near 15°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

Sea temperature near Laredo 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 19 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 7 to Apr 12 — about 3.2 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
Aug17Cool
Sep17Cool
Oct17Cool
Nov18Cool
Dec19Cool

UV index in Laredo 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 Laredo peaks around February 15 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 15UV 17Jun 21UV 10
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar16Extreme
Apr14Extreme
May13Extreme
Jun10Very high
Jul11Extreme
Aug12Extreme
Sep11Extreme
Oct15Extreme
Nov14Extreme
Dec14Extreme
Location & terrain

Where is Laredo?

Laredo sits at 8.1°S, 79.0°W, 97 m above sea level, in Peru. The nearest listed city is Trujillo, 8.0 km away.

Topography around Laredo

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

Within 3 km, the terrain around Laredo has only modest variations in elevation — a maximum elevation change of 197 m around an average of 95 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,137 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,315 m.

The land around Laredo is covered by trees (38%) and cropland (35%) within 3 km, bare terrain (64%) within 16 km, and bare terrain (29%), water (28%) and grassland (23%) within 80 km.

3 km
197 m
16 km
2,137 m
80 km
4,315 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Trujillo 8.0 km · Moche 11 km · Santiago de Cao 34 km · Virú 43 km · Chocope 44 km · Paiján 55 km · San Pedro de Lloc 95 km · Pacasmayo 102 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 Laredo (-8.0897°, -78.9602°, elevation 97 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).