San Fernando weather in January

In January, San Fernando sees average daytime highs of 27°C and overnight lows near 24°C, with 33 mm of rain across 7.4 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 49% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 hours at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is San Fernando's 4th-clearest and 10th-windiest month. For the whole year in context, see San Fernando's year-round climate.

Daytime high
27°
12th warmest
Overnight low
24°
1st coldest
Rainfall
33 mm
7.4 wet days
Daylight
11 h 06 min
6:35 AM – 5:41 PM
Cloud cover
46%
4th clearest
Wind
8 km/h
10th windiest
Solar energy
4.65 kWh/m²
Travel score
7.1
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical January day in San Fernando reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°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)
12724
22724
32724
42724
52724
62724
72724
82724
92724
102724
112724
122724
132724
142724
152724
162724
172724
182724
192724
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724
312724

How January really feels in San Fernando

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.

San Fernando weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°337.411.17.1
Feb27° / 24°325.511.47.4
Mar28° / 25°295.611.96.8
Apr30° / 26°357.812.45.5
May31° / 27°1951812.83.8
Jun30° / 27°28524.4133.1
Jul29° / 26°57127.312.93.1
Aug29° / 26°63327.912.63.1
Sep29° / 26°37426.612.13.2
Oct29° / 26°26320.611.64.1
Nov28° / 26°1121611.25.0
Dec28° / 25°9314.3115.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36634
46733
56832
66832
76832
86931
96832
106832
116832
126832
136733
146733
156733
166733
176832
186832
196832
206931
216931
226931
237129
247129
257228
267228
277228
287228
297327
307426
317426

Chance of precipitation in January

Any precipitation

San Fernando gets around 33 mm of rain over 7.4 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
132
231
329
428
527
626
725
824
924
1023
1123
1223
1323
1423
1523
1623
1723
1824
1924
2024
2124
2225
2325
2425
2525
2625
2725
2825
2925
3025
3124

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10177013
20177112
30177211
40187210
5018739
6019738
7019747
8120736
9120745
10120745
11121735
12121744
13121744
14121744
15121744
16122734
17122734
18122725
19123715
20123715
21123715
22123715
23123715
24124705
25124705
26124705
27124705
28124714
29125704
30125704
31125713

Wind in January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours 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 18 minutes over January. Sunrise moves from 6:31 AM to 6:34 AM, and sunset from 5:33 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:315:33
211.06:315:33
311.06:325:34
411.06:325:34
511.06:325:35
611.06:335:35
711.16:335:36
811.16:335:37
911.16:345:37
1011.16:345:38
1111.16:345:38
1211.16:345:39
1311.16:345:40
1411.16:345:40
1511.16:355:41
1611.16:355:41
1711.16:355:42
1811.16:355:42
1911.16:355:43
2011.16:355:44
2111.26:355:44
2211.26:355:45
2311.26:355:45
2411.26:355:46
2511.26:355:46
2611.26:355:47
2711.26:355:48
2811.26:355:48
2911.26:355:49
3011.26:355:49
3111.36:345:50

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.04 kWh/m² to a high of 6.7 kWh/m² in April across the year — January's 4.65 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.4Bright
44.4Bright
54.4Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.9Bright
Planning a trip in January

Hazard calendar for San Fernando

In seasonPeak

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

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

San Fernando'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 San Fernando?

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

7.1
Sightseeing
2nd-best month of the year
7.1
Beach & pool
4th-best month of the year

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

What to pack for San Fernando in January

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

In January, San Fernando sees daytime highs around 27°C and nights near 24°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near San Fernando 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 at the nearest coast (about 20 km away) is warmest in June 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 San Fernando 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 San Fernando peaks around August 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 13Dec 11UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in San Fernando 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 San Fernando is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateApr 1115 µg/m³Jan 1911 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar15Moderate
Apr15Moderate
May14Moderate
Jun15Moderate
Jul14Moderate
Aug15Moderate
Sep13Moderate
Oct14Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is San Fernando?

San Fernando sits at 16.6°N, 120.3°E, 9 m above sea level, in Philippines. The nearest listed city is Bauang, 10 km away.

Topography around San Fernando

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

Within 3 km, the terrain around San Fernando has only modest variations in elevation — a maximum elevation change of 157 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 734 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,900 m.

The land around San Fernando is covered by trees (35%) and water (31%) within 3 km, water (52%) and trees (36%) within 16 km, and trees (47%) and water (40%) within 80 km.

3 km
157 m
16 km
734 m
80 km
2,900 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Bauang 10 km · Aringay 25 km · La Trinidad 34 km · Baguio 37 km · Tagudin 38 km · Santa Maria 40 km · Itogon 48 km · Mankayan 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 San Fernando (16.6159°, 120.3166°, elevation 9 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).