San Fernando weather in January

In January, San Fernando sees average daytime highs of 28°C and overnight lows near 24°C, with 39 mm of rain across 9.1 wet days and about 11.5 hours of daylight. It is the 12th-warmest and 9th-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 44% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of January to 11 h 30 min by month's end. Set against the rest of the year, January is San Fernando's 1st-clearest and 6th-windiest month. For the whole year in context, see San Fernando's year-round climate.

Daytime high
28°
12th warmest
Overnight low
24°
2nd coldest
Rainfall
39 mm
9.1 wet days
Daylight
11 h 30 min
6:31 AM – 5:59 PM
Cloud cover
48%
1st clearest
Wind
16 km/h
6th windiest
Solar energy
5.13 kWh/m²
Travel score
6.7
out of 10

San Fernando is city in Trinidad and Tobago.

Density
2,973/km²
people per km²
Founded
1595

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 San Fernando reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°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, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

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 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°399.111.56.7
Feb28° / 24°185.411.77.0
Mar28° / 24°22511.96.5
Apr29° / 25°28612.25.9
May29° / 25°6112.312.55.1
Jun28° / 25°13821.812.64.1
Jul28° / 25°15226.312.53.7
Aug29° / 25°16526.512.33.6
Sep29° / 26°12322.412.13.8
Oct29° / 25°13223.111.83.9
Nov28° / 25°14423.711.54.0
Dec28° / 24°891711.45.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in January, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 27% of January, with mostly cloudy or overcast conditions the remaining 30%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
27030
37030
47129
57030
67129
77030
87030
96931
107030
116931
126832
136832
146832
156832
166832
176832
186931
196931
207030
217030
227129
237129
247129
257327
267327
277327
287426
297426
307426
317525

Chance of precipitation in January

Any precipitation

San Fernando gets around 39 mm of rain over 9.1 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 30% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
237
337
436
536
635
735
834
934
1034
1133
1233
1333
1432
1532
1631
1730
1830
1929
2028
2127
2226
2326
2425
2524
2623
2723
2822
2922
3021
3121

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
1892
2892
3991
4991
51090
61189
71189
81288
91387
101486
111585
121684
131684
141783
151882
161981
172080
182179
192278
202377
212476
222575
232674
242773
252872
262971
273070
283070
293169
303169
313268

Wind in January

Winds average 16 km/h in January.

Across January, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 24 min at the start of January to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:27 AM to 6:33 AM, and sunset from 5:51 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:275:51
211.46:275:52
311.46:285:52
411.46:285:53
511.46:285:53
611.46:295:54
711.46:295:54
811.46:295:55
911.46:305:55
1011.46:305:56
1111.46:305:56
1211.46:305:57
1311.46:315:57
1411.56:315:58
1511.56:315:58
1611.56:315:59
1711.56:325:59
1811.56:326:00
1911.56:326:00
2011.56:326:01
2111.56:326:01
2211.56:326:02
2311.56:326:02
2411.56:336:03
2511.56:336:03
2611.56:336:04
2711.56:336:04
2811.56:336:04
2911.56:336:05
3011.56:336:05
3111.56:336:06

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.13 kWh/m².

For context, solar energy here swings from a low near 4.74 kWh/m² to a high of 6.25 kWh/m² in April across the year — January's 5.13 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in January

Hazard calendar for San Fernando

In seasonPeak

None of San Fernando's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

San Fernando's rainy season runs June–December, when most of the year's rain falls.

Rainy season
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).

6.7
Sightseeing
2nd-best month of the year
7.0
Beach & pool
4th-best month of the year

January is a reasonable time to visit San Fernando for 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 28°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun 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 September at about 29°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°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in San Fernando in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 11 (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 March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 21UV 14Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very 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 June — around 31 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1530 µg/m³Nov 2314 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar19Moderate
Apr23Moderate
May26Moderate
Jun31Moderate
Jul24Moderate
Aug18Moderate
Sep15Moderate
Oct17Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is San Fernando?

San Fernando sits at 10.3°N, 61.5°W, 28 m above sea level, in Trinidad and Tobago. The nearest listed city is Mon Repos, 2.0 km away.

Point FortinChaguanasRio ClaroLaventilleTunapunaParadise

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 156 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.

The land around San Fernando is covered by water (49%) and artificial surfaces (39%) within 3 km, grassland (32%), water (32%) and trees (22%) within 16 km, and water (66%) and trees (22%) within 80 km.

3 km
156 m
16 km
318 m
80 km
1,037 m
treesgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: Mon Repos 2.0 km · Marabella 4.0 km · Point Fortin 26 km · Chaguanas 27 km · Rio Claro 32 km · Laventille 41 km · Tunapuna 42 km · Paradise 43 km

Trinidad and Tobago travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
115 / 230 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$18,967
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
40.4
per 100k, 2022
Road deaths
9.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 32%Roman Catholic 22%Hindu 18%other 8%

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 (10.2797°, -61.4684°, elevation 28 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. 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).