Paiján weather in September

In September, Paiján sees average daytime highs of 22°C and overnight lows near 16°C, with 3 mm of rain across 0.7 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 35% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Paiján's 5th-clearest and 1st-windiest month. For the whole year in context, see Paiján's year-round climate.

Daytime high
22°
10th warmest
Overnight low
16°
2nd coldest
Rainfall
3 mm
0.7 wet days
Daylight
12 hours
6:13 AM – 6:10 PM
Cloud cover
54%
5th clearest
Wind
10 km/h
1st windiest
Solar energy
6.34 kWh/m²
Travel score
8.1
out of 10

Paiján is human settlement in 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 22°C through the month.

A typical September day in Paiján reaches about 22°C in the afternoon and slips back to 16°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 20°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)
12216
22216
32216
42216
52216
62216
72216
82216
92216
102216
112216
122216
132216
142216
152216
162216
172216
182216
192216
202216
212216
222216
232216
242216
252216
262216
272216
282216
292216
302216

Paiján 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
Jan27° / 20°184.812.46.8
Feb28° / 21°388.112.35.8
Mar28° / 21°5111.912.15.5
Apr27° / 20°17411.87.3
May25° / 18°30.811.78.5
Jun23° / 17°20.411.68.6
Jul22° / 16°10.111.68.4
Aug22° / 16°20.211.78.4
Sep22° / 16°30.7128.1
Oct23° / 16°41.212.28.0
Nov24° / 17°4112.48.1
Dec25° / 18°11312.47.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37228
47129
57030
67030
76931
86733
96733
106535
116436
126337
136238
146139
156040
165941
175842
185743
195644
205644
215545
225545
235446
245446
255347
265347
275347
285347
295347
305347

Chance of precipitation in September

Any precipitation

Paiján gets around 3 mm of rain over 0.7 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 5% 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
151
161
171
182
192
202
212
223
233
244
254
264
274
285
295
305

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1284131
2285121
3285121
4286111
5286111
6287101
7287101
8287101
928891
1038791
1138791
1238881
1338881
1438881
1538881
1638881
1738881
1838881
1938881
2038782
2138782
2248682
2348682
2448682
2548682
2648691
2748691
2848691
29386101
30386101

Wind in September

Winds average 10 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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 6:21 AM to 6:05 AM, and sunset from 6:12 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:216:12
211.96:216:12
311.96:206:12
411.96:206:12
511.96:196:12
611.96:196:12
711.96:186:12
811.96:176:11
911.96:176:11
1011.96:166:11
1111.96:166:11
1211.96:156:11
1311.96:156:11
1411.96:146:11
1512.06:136:10
1612.06:136:10
1712.06:126:10
1812.06:126:10
1912.06:116:10
2012.06:106:10
2112.06:106:10
2212.06:096:09
2312.06:096:09
2412.06:086:09
2512.06:086:09
2612.06:076:09
2712.06:066:09
2812.06:066:09
2912.16:056:08
3012.16:056:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.34 kWh/m².

For context, solar energy here swings from a low near 5.26 kWh/m² to a high of 6.84 kWh/m² in November across the year — September's 6.34 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Is September a good time to visit Paiján?

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

8.1
Sightseeing
5th-best month of the year
5.6
Beach & pool
11th-best month of the year

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

What to pack for Paiján in September

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

In September, Paiján sees daytime highs around 22°C and nights near 16°C. Pack sun protection.

sun protection

Sea temperature near Paiján 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 18 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 17 — about 3.5 months when the water holds above 20°C.

16°18°20°22°24°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb22Refreshing
Mar22Refreshing
Apr20Refreshing
May19Cool
Jun19Cool
Jul18Cool
Aug17Cool
Sep17Cool
Oct17Cool
Nov18Cool
Dec19Cool

UV index in Paiján in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Paiján peaks around February 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 16UV 16Jun 21UV 10
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May12Extreme
Jun9Very high
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Paiján?

Paiján sits at 7.7°S, 79.3°W, 93 m above sea level, in Peru. The nearest listed city is Chocope, 11 km away.

Topography around Paiján

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

Within 3 km, the terrain around Paiján has only modest variations in elevation — a maximum elevation change of 233 m around an average of 91 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 653 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,280 m.

The land around Paiján is covered by bare terrain (33%) and cropland (25%) within 3 km, bare terrain (41%) and cropland (28%) within 16 km, and water (33%) and bare terrain (30%) within 80 km.

3 km
233 m
16 km
653 m
80 km
4,280 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Chocope 11 km · Santiago de Cao 26 km · San Pedro de Lloc 41 km · Pacasmayo 47 km · Trujillo 52 km · Laredo 55 km · Guadalupe 57 km · Chepén 58 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 Paiján (-7.7329°, -79.3015°, elevation 93 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).