Isla weather in January

In January, Isla sees average daytime highs of 26°C and overnight lows near 18°C, with 51 mm of rain across 9.1 wet days and about 11 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 29% of the time in January, and the air most often feels muggy.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Isla's 5th-clearest and 4th-windiest month. For the whole year in context, see Isla's year-round climate.

Daytime high
26°
12th warmest
Overnight low
18°
1st coldest
Rainfall
51 mm
9.1 wet days
Daylight
11 hours
7:01 AM – 6:02 PM
Cloud cover
60%
5th clearest
Wind
9 km/h
4th windiest
Solar energy
3.47 kWh/m²
Travel score
6.7
out of 10

Isla is municipal seat of Isla, State of Veracruz, Mexico.

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 26°C through the month.

A typical January day in Isla reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12619
22619
32619
42619
52618
62618
72618
82618
92618
102618
112618
122618
132618
142618
152618
162618
172618
182618
192618
202618
212618
222618
232618
242618
252718
262718
272718
282718
292719
302719
312719

How January really feels in Isla

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.

Isla weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°519.1116.7
Feb28° / 19°30611.46.4
Mar32° / 21°234.911.94.9
Apr34° / 23°315.212.43.3
May35° / 25°7911.412.82.5
Jun33° / 24°24322.613.12.3
Jul32° / 24°29426.4132.5
Aug32° / 24°29726.512.62.5
Sep32° / 24°31524.912.12.7
Oct30° / 23°20819.211.63.9
Nov28° / 21°9312.811.25.6
Dec27° / 19°489.510.96.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24159
34159
44258
54258
64357
74456
84456
94357
104456
114456
124456
134555
144555
154555
164654
174654
184555
194555
204654
214654
224654
234555
244654
254654
264654
274555
284654
294654
304555
314654

Chance of precipitation in January

Any precipitation

Isla gets around 51 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 29% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
232
332
431
531
630
730
830
930
1029
1129
1229
1329
1428
1528
1628
1728
1828
1928
2028
2128
2228
2328
2428
2528
2628
2728
2828
2929
3029
3129

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 57% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1310284217
2311274217
3311274316
4311274316
5311274315
6312284314
7312284314
8312294313
9312304213
10312304212
11313314212
12313314212
13313324211
14313324211
15213324211
16213314311
17213314311
18213314411
19213304411
20213304511
21213304511
22212294611
23212294711
24212284711
25212284811
26212274811
27212274911
28211274911
29211274911
30211274812
31211284712

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 min at the start of January to 11 h 12 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 6:57 AM to 7:00 AM, and sunset from 5:53 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:575:53
210.96:585:54
310.96:585:54
410.96:585:55
511.06:585:56
611.06:595:56
711.06:595:57
811.06:595:57
911.06:595:58
1011.07:005:59
1111.07:005:59
1211.07:006:00
1311.07:006:00
1411.07:006:01
1511.07:006:02
1611.07:016:02
1711.07:016:03
1811.07:016:03
1911.17:016:04
2011.17:016:05
2111.17:016:05
2211.17:016:06
2311.17:016:06
2411.17:016:07
2511.17:016:08
2611.17:016:08
2711.17:006:09
2811.17:006:09
2911.27:006:10
3011.27:006:10
3111.27:006:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.47 kWh/m².

For context, solar energy here swings from a low near 3.38 kWh/m² to a high of 6.41 kWh/m² in May across the year — January's 3.47 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.8Moderate
Planning a trip in January

Hazard calendar for Isla

In seasonPeak

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

Isla's monsoon runs June–October, when most of the year's rain falls.

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

Is January a good time to visit Isla?

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

6.7
Sightseeing
1st-best month of the year
6.6
Beach & pool
4th-best month of the year

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

What to pack for Isla in January

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

In January, Isla sees daytime highs around 26°C and nights near 18°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Isla in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Isla peaks around August 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 highExtremeExtremeVery highAug 17UV 12Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar11Extreme
Apr13Extreme
May9Very high
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Isla 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 Isla is worst in May — around 41 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (January, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1739 µg/m³Jan 1814 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar18Moderate
Apr27Moderate
May41Poor
Jun30Moderate
Jul34Moderate
Aug26Moderate
Sep23Moderate
Oct16Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Isla?

Isla sits at 18.0°N, 95.5°W, 67 m above sea level, in Mexico. The nearest listed city is Loma Bonita, 38 km away.

Topography around Isla

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

Within 3 km, the terrain around Isla has only modest variations in elevation — a maximum elevation change of 56 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 155 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,657 m.

The land around Isla is covered by grassland (52%) and trees (25%) within 3 km, grassland (60%) and trees (27%) within 16 km, and grassland (46%) and trees (36%) within 80 km.

3 km
56 m
16 km
155 m
80 km
1,657 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
January weather nearby: Loma Bonita 38 km · Carlos A. Carrillo 45 km · Cosamaloapan 47 km · Santiago Tuxtla 54 km · San Andrés Tuxtla 57 km · Catemaco 62 km · Tuxtepec 63 km · Acayucan 66 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Isla (18.0278°, -95.5295°, elevation 67 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. 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).