Aparri weather in September

In September, Aparri sees average daytime highs of 30°C and overnight lows near 25°C, with 253 mm of rain across 23.8 wet days and about 12.1 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 15% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Aparri's 10th-clearest and 8th-windiest month. For the whole year in context, see Aparri's year-round climate.

Daytime high
30°
6th warmest
Overnight low
25°
8th coldest
Rainfall
253 mm
23.8 wet days
Daylight
12 h 06 min
5:45 AM – 5:51 PM
Cloud cover
76%
10th clearest
Wind
9 km/h
8th windiest
Solar energy
5.16 kWh/m²
Travel score
3.2
out of 10

Aparri is municipality of the Philippines in the province of Cagayan.

Density
239/km²
people per km²

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 30°C through the month.

A typical September day in Aparri reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63026
73026
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Aparri

Once humidity and wind are folded in, September 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.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Aparri weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 22°10615.5115.8
Feb26° / 22°8811.911.46.2
Mar28° / 23°5810.111.96.1
Apr30° / 25°5810.312.45.0
May32° / 26°16619.312.93.4
Jun32° / 26°17922.413.12.7
Jul31° / 26°25325.8132.7
Aug31° / 26°25025.212.62.9
Sep30° / 25°25323.812.13.2
Oct29° / 25°25123.611.63.8
Nov28° / 24°26019.811.14.8
Dec26° / 23°2542010.95.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 73%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12476
22575
32476
42476
52575
62575
72575
82476
92476
102476
112476
122575
132575
142575
152575
162674
172674
182773
192872
202872
212971
222971
233070
243169
253169
263169
273367
283367
293466
303565

Chance of precipitation in September

Any precipitation

Aparri gets around 253 mm of rain over 23.8 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 80% and peaks near 81% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
181
281
381
481
581
681
781
881
981
1081
1181
1281
1381
1481
1581
1681
1781
1880
1980
2080
2179
2279
2378
2478
2577
2677
2776
2876
2976
3076

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
101090
201090
301189
401189
501288
601387
701387
801486
901486
1001585
1101684
1201783
1301783
1401882
1501981
1601981
1702080
1812079
1912079
2012079
2112178
2212178
2322177
2422177
2522276
2622375
2722375
2832473
2932572
3032671

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over September. Sunrise moves from 5:42 AM to 5:47 AM, and sunset from 6:04 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:426:04
212.35:426:03
312.35:436:02
412.35:436:02
512.35:436:01
612.35:436:00
712.35:435:59
812.25:435:58
912.25:445:57
1012.25:445:56
1112.25:445:55
1212.25:445:54
1312.25:445:54
1412.15:445:53
1512.15:455:52
1612.15:455:51
1712.15:455:50
1812.15:455:49
1912.05:455:48
2012.05:455:47
2112.05:465:46
2212.05:465:45
2312.05:465:45
2412.05:465:44
2511.95:465:43
2611.95:465:42
2711.95:475:41
2811.95:475:40
2911.95:475:39
3011.95:475:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.16 kWh/m².

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 6.33 kWh/m² in June across the year — September's 5.16 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Aparri

In seasonPeak

In September, Aparri sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Aparri sits in the Pacific typhoon belt; the season peaks July–October.

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

Is September a good time to visit Aparri?

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

3.2
Sightseeing
9th-best month of the year
4.5
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Aparri.

What to pack for Aparri in September

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

In September, Aparri sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Aparri in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in June at about 30°C and coldest in January near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar26Warm
Apr27Warm
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Aparri in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Aparri peaks around August 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 17UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar11Extreme
Apr11Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Aparri in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Aparri is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1319 µg/m³Dec 1214 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar18Moderate
Apr20Moderate
May16Moderate
Jun15Moderate
Jul15Moderate
Aug17Moderate
Sep17Moderate
Oct15Moderate
Nov14Moderate
Dec14Moderate
Location & terrain

Where is Aparri?

Aparri sits at 18.4°N, 121.6°E, 6 m above sea level, in Philippines. The nearest listed city is Sanchez-Mira, 49 km away.

TabukCabaganLaoagSan NicolasBatac City

Topography around Aparri

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

Within 3 km, the terrain around Aparri has only modest variations in elevation — a maximum elevation change of 8 m around an average of 1 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 136 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,832 m.

The land around Aparri is covered by water (68%) within 3 km, water (51%) and cropland (25%) within 16 km, and water (45%) and trees (42%) within 80 km.

3 km
8 m
16 km
136 m
80 km
1,832 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Sanchez-Mira 49 km · Solana 78 km · Tuguegarao 83 km · Tabuk 100 km · Cabagan 104 km · Laoag 112 km · San Nicolas 112 km · Batac City 118 km

Philippines travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,171
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
12
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 569
Religion
Roman Catholic 79%other 8%Muslim 6%other Christian 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 Aparri (18.3566°, 121.6406°, elevation 6 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).