Iba weather in January

In January, Iba sees average daytime highs of 28°C and overnight lows near 23°C, with 14 mm of rain across 3.2 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 12th-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 38% of the time in January, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Iba's 4th-clearest and 5th-windiest month. For the whole year in context, see Iba's year-round climate.

Daytime high
28°
9th warmest
Overnight low
23°
1st coldest
Rainfall
14 mm
3.2 wet days
Daylight
11 h 12 min
6:34 AM – 5:45 PM
Cloud cover
51%
4th clearest
Wind
7 km/h
5th windiest
Solar energy
4.84 kWh/m²
Travel score
6.8
out of 10

Iba is municipality of the Philippines and capital of the province of Zambales.

Density
176/km²
people per km²
Founded
1611

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

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

A typical January day in Iba reaches about 28°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12823
22823
32823
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202823
212823
222823
232823
242823
252823
262823
272822
282822
292822
302822
312822

How January really feels in Iba

Once humidity and wind are folded in, January 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

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

Iba weather by month

How January compares with the rest of the year at a glance. January is the 9th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°143.211.26.8
Feb29° / 23°193.211.56.5
Mar30° / 24°325.511.95.8
Apr31° / 25°4810.212.34.7
May30° / 26°21022.212.73.4
Jun29° / 25°39127.612.93.0
Jul28° / 25°62029.912.83.1
Aug28° / 25°63329.812.53.3
Sep28° / 25°4312812.13.2
Oct29° / 25°25221.811.73.9
Nov29° / 24°9511.411.35.2
Dec29° / 24°577.211.16.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 26% of January, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36337
46436
56436
66436
76535
86436
96436
106436
116436
126436
136436
146337
156238
166238
176337
186337
196337
206337
216436
226436
236436
246535
256535
266535
276634
286634
296634
306634
316733

Chance of precipitation in January

Any precipitation

Iba gets around 14 mm of rain over 3.2 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
213
313
412
511
611
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
1910
2010
2111
2211
2311
2411
2511
2611
2711
2811
2911
3011
3112

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10645481
20646480
30646470
40747460
50748450
60748440
70749440
80749430
90749430
100849430
110848430
121848430
131848440
141848440
151848440
161848430
171848430
181848430
191848430
201948430
210948430
220948420
2301048420
2401048420
2501048420
2601148410
2701148410
2801248400
2901248400
3001248400
3101248400

Wind in January

Winds average 7 km/h in January.

Across January, 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.

0246810151015202531
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
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 06 min at the start of January to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over January. Sunrise moves from 6:30 AM to 6:34 AM, and sunset from 5:36 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:305:36
211.16:305:37
311.16:315:37
411.16:315:38
511.16:315:39
611.16:325:39
711.16:325:40
811.16:325:40
911.16:335:41
1011.16:335:41
1111.16:335:42
1211.26:335:43
1311.26:335:43
1411.26:345:44
1511.26:345:44
1611.26:345:45
1711.26:345:45
1811.26:345:46
1911.26:345:47
2011.26:345:47
2111.26:345:48
2211.26:345:48
2311.26:345:49
2411.26:345:49
2511.36:345:50
2611.36:345:50
2711.36:345:51
2811.36:345:51
2911.36:345:52
3011.36:345:52
3111.36:345:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.84 kWh/m².

For context, solar energy here swings from a low near 4.15 kWh/m² to a high of 6.48 kWh/m² in April across the year — January's 4.84 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in January

Hazard calendar for Iba

In seasonPeak

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

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

Iba's monsoon runs June–September, when most of the year's rain falls.

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

Is January a good time to visit Iba?

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

6.8
Sightseeing
1st-best month of the year
8.0
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Iba for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Iba in January

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

In January, Iba sees daytime highs around 28°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Iba in January

The nearest coast averages about 27°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 30°C and coldest in February near 27°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Iba in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Iba peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (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 14Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Iba in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Iba is worst in November — around 30 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 1530 µg/m³Aug 1421 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb26Moderate
Mar29Moderate
Apr28Moderate
May23Moderate
Jun22Moderate
Jul21Moderate
Aug21Moderate
Sep22Moderate
Oct29Moderate
Nov30Moderate
Dec29Moderate
Location & terrain

Where is Iba?

Iba sits at 15.3°N, 120.0°E, 13 m above sea level, in Philippines. The nearest listed city is Botolan, 7.0 km away.

Topography around Iba

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

Within 3 km, the terrain around Iba has only modest variations in elevation — a maximum elevation change of 43 m around an average of 5 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,276 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,021 m.

The land around Iba is covered by water (40%) and trees (28%) within 3 km, water (47%) and trees (29%) within 16 km, and water (38%) and trees (36%) within 80 km.

3 km
43 m
16 km
1,276 m
80 km
2,021 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Botolan 7.0 km · Masinloc 23 km · San Narciso 37 km · San Marcelino 44 km · San Antonio 44 km · Santa Cruz 49 km · Castillejos 50 km · Subic 57 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 Iba (15.3276°, 119.978°, elevation 13 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).