City of Isabela weather in August

In August, City of Isabela sees average daytime highs of 28°C and overnight lows near 25°C, with 178 mm of rain across 24.8 wet days and about 12.2 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 4% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of August to 12 h 06 min by month's end. Set against the rest of the year, August is City of Isabela's 8th-clearest and 1st-windiest month. For the whole year in context, see City of Isabela's year-round climate.

Daytime high
28°
11th warmest
Overnight low
25°
7th coldest
Rainfall
178 mm
24.8 wet days
Daylight
12 h 12 min
5:50 AM – 6:03 PM
Cloud cover
83%
8th clearest
Wind
9 km/h
1st windiest
Solar energy
5.6 kWh/m²
Travel score
3.9
out of 10

City of Isabela is city of the Philippines in the province of Basilan.

Density
301/km²
people per km²
Founded
1848

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in City of Isabela reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, August runs on par with July and on par with September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825
312825

How August really feels in City of Isabela

Once humidity and wind are folded in, August averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

City of Isabela weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°1151711.74.8
Feb28° / 25°9413.911.84.9
Mar29° / 25°10417.7124.6
Apr29° / 25°1182212.13.8
May29° / 26°18326.112.33.4
Jun28° / 25°22426.112.43.5
Jul28° / 25°20426.212.43.8
Aug28° / 25°17824.812.23.9
Sep28° / 25°16923.6123.8
Oct28° / 25°21226.311.93.6
Nov28° / 25°1762411.73.7
Dec28° / 25°14122.411.64.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 10% of August, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11090
21090
31090
41189
51189
61189
71288
81288
91288
101387
111486
121486
131486
141486
151585
161585
171585
181585
191585
201585
211585
221585
231585
241585
251585
261585
271585
281585
291585
301585
311585

Chance of precipitation in August

Any precipitation

City of Isabela gets around 178 mm of rain over 24.8 wet days in August. 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%151015202531
Rain chance (%)
181
281
381
480
580
680
780
880
980
1080
1181
1281
1381
1481
1581
1681
1781
1881
1981
2081
2181
2281
2380
2480
2580
2679
2779
2878
2978
3078
3178

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17426
27426
37327
47327
57327
67327
77327
87426
97426
107426
117525
127624
137624
147723
157822
167921
177921
188020
198020
208119
218119
228119
238119
248119
258119
268119
278119
288119
298119
308119
318218

Wind in August

Winds average 9 km/h in August, the windiest month of the year.

Across August, 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.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 18 min at the start of August to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over August. Sunrise moves from 5:49 AM to 5:48 AM, and sunset from 6:07 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:496:07
212.35:496:07
312.35:496:07
412.35:496:06
512.35:506:06
612.35:506:06
712.35:506:06
812.35:506:05
912.35:506:05
1012.35:506:05
1112.25:506:05
1212.25:506:04
1312.25:506:04
1412.25:506:04
1512.25:506:03
1612.25:506:03
1712.25:506:02
1812.25:496:02
1912.25:496:02
2012.25:496:01
2112.25:496:01
2212.25:496:00
2312.25:496:00
2412.25:496:00
2512.25:495:59
2612.25:495:59
2712.25:495:58
2812.25:495:58
2912.15:485:57
3012.15:485:57
3112.15:485:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.6 kWh/m².

For context, solar energy here swings from a low near 5.11 kWh/m² to a high of 6.26 kWh/m² in March across the year — August's 5.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in August

Hazard calendar for City of Isabela

In seasonPeak

In August, City of Isabela sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

City of Isabela 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 August a good time to visit City of Isabela?

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

3.9
Sightseeing
5th-best month of the year
4.3
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in City of Isabela.

What to pack for City of Isabela in August

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

In August, City of Isabela sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near City of Isabela in August

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

The sea at the nearest coast (about 14 km away) is warmest in June at about 29°C and coldest in February 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
Jan28Warm
Feb28Warm
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in City of Isabela in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 City of Isabela peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 17UV 14Nov 22UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec10Extreme

Air quality in City of Isabela in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in City of Isabela is worst in March — around 39 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 15 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1938 µg/m³Aug 1015 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb33Moderate
Mar39Poor
Apr36Poor
May25Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep19Moderate
Oct26Moderate
Nov30Moderate
Dec28Moderate
Location & terrain

Where is City of Isabela?

City of Isabela sits at 6.7°N, 122.0°E, 10 m above sea level, in Philippines. The nearest listed city is Maluso, 21 km away.

SioconJoloIpilPagadian

Topography around City of Isabela

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

Within 3 km, the terrain around City of Isabela has only modest variations in elevation — a maximum elevation change of 187 m around an average of 38 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 942 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,347 m.

The land around City of Isabela is covered by trees (60%) and water (21%) within 3 km, trees (49%) and water (48%) within 16 km, and water (83%) within 80 km.

3 km
187 m
16 km
942 m
80 km
1,347 m
treesgrasslandartificial surfaceswatermangroves
August weather nearby: Maluso 21 km · Zamboanga City 26 km · Recodo 28 km · Al-Barka 33 km · Siocon 113 km · Jolo 129 km · Ipil 138 km · Pagadian 204 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 City of Isabela (6.7041°, 121.9712°, elevation 10 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).