Barrett Town weather in January

In January, Barrett Town sees average daytime highs of 27°C and overnight lows near 22°C, with 46 mm of rain across 12.3 wet days and about 11 hours of daylight. It is the 12th-warmest and 11th-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 62% of the time in January, and the air most often feels oppressive.

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 Barrett Town's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Barrett Town's year-round climate.

Daytime high
27°
12th warmest
Overnight low
22°
2nd coldest
Rainfall
46 mm
12.3 wet days
Daylight
11 hours
6:51 AM – 5:50 PM
Cloud cover
39%
2nd clearest
Wind
14 km/h
2nd windiest
Solar energy
4.59 kWh/m²
Travel score
6.5
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 Barrett Town reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°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)
12723
22723
32723
42723
52723
62723
72723
82723
92722
102722
112722
122722
132722
142722
152722
162722
172722
182722
192722
202722
212722
222722
232722
242722
252722
262722
272722
282722
292722
302722
312722

How January really feels in Barrett Town

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.

Barrett Town weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°4612.3116.5
Feb27° / 22°4011.411.46.5
Mar28° / 23°6013.411.96.2
Apr29° / 23°8615.512.45.1
May29° / 24°19523.112.93.9
Jun30° / 25°12420.513.13.6
Jul30° / 25°11922.7133.5
Aug30° / 25°14725.812.63.1
Sep30° / 25°18425.912.13.1
Oct29° / 25°16924.711.63.6
Nov28° / 24°9117.411.15.1
Dec27° / 23°5412.110.96.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 22% of January, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28020
38020
48119
58119
68218
78119
88218
98218
108218
118317
128317
138317
148416
158416
168416
178416
188416
198416
208515
218515
228515
238614
248614
258614
268614
278614
288713
298713
308713
318713

Chance of precipitation in January

Any precipitation

Barrett Town gets around 46 mm of rain over 12.3 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 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
339
439
540
640
741
841
941
1042
1142
1242
1342
1441
1541
1641
1741
1840
1940
2040
2139
2239
2339
2439
2539
2639
2739
2839
2939
3040
3140

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1052867
2053065
3053164
4053263
5053362
6053461
7053560
8153658
9153757
10153856
11153955
12153955
13164053
14164152
15164152
16164251
17164350
18164350
19174449
20174548
21174647
22074746
23074845
24064944
25065044
26065143
27065242
28065242
29065341
30065341
31075241

Wind in January

Winds average 14 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

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 6:47 AM to 6:50 AM, and sunset from 5:42 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:475:42
210.96:485:42
310.96:485:43
410.96:485:43
510.96:485:44
610.96:495:44
710.96:495:45
810.96:495:46
910.96:495:46
1011.06:505:47
1111.06:505:47
1211.06:505:48
1311.06:505:49
1411.06:505:49
1511.06:505:50
1611.06:515:50
1711.06:515:51
1811.06:515:52
1911.06:515:52
2011.06:515:53
2111.06:515:54
2211.16:515:54
2311.16:515:55
2411.16:515:55
2511.16:515:56
2611.16:505:57
2711.16:505:57
2811.16:505:58
2911.16:505:58
3011.16:505:59
3111.26:505:59

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.59 kWh/m².

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 6.65 kWh/m² in July across the year — January's 4.59 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in January

Hazard calendar for Barrett Town

In seasonPeak

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

Barrett Town sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is January a good time to visit Barrett Town?

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

6.5
Sightseeing
1st-best month of the year
6.6
Beach & pool
3rd-best month of the year

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

What to pack for Barrett Town in January

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

In January, Barrett Town sees daytime highs around 27°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Barrett Town 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 14 km away) is warmest in September 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
Mar27Warm
Apr28Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Barrett Town 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 Barrett Town peaks around April 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highExtremeVery highApr 16UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec7Very high

Air quality in Barrett Town 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 Barrett Town is worst in June — around 32 µg/m³ PM2.5 (moderate), about 4.3× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2231 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr13Moderate
May18Moderate
Jun32Moderate
Jul30Moderate
Aug23Moderate
Sep16Moderate
Oct13Moderate
Nov8Good
Dec7Good
Location & terrain

Where is Barrett Town?

Barrett Town sits at 18.5°N, 77.8°W, 53 m above sea level, in Jamaica. The nearest listed city is Montego Bay, 13 km away.

Montego BayFalmouthSavanna-la-MarMandevilleNegrilOcho RiosMay PenLinstead

Topography around Barrett Town

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

Within 3 km, the terrain around Barrett Town has significant variations in elevation — a maximum elevation change of 388 m around an average of 92 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 608 m; within 80 km, large variations in elevation — a maximum elevation change of 978 m.

The land around Barrett Town is covered by trees (48%) and water (37%) within 3 km, water (53%) and trees (36%) within 16 km, and water (55%) and trees (36%) within 80 km.

3 km
388 m
16 km
608 m
80 km
978 m
treesgrasslandartificial surfaceswaterwetlandmangroves
January weather nearby: Montego Bay 13 km · Falmouth 16 km · Savanna-la-Mar 48 km · Mandeville 61 km · Negril 64 km · Ocho Rios 75 km · May Pen 85 km · Linstead 92 km

Jamaica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
110 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$8,003
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
49.4
per 100k, 2023
Road deaths
15.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 65%none 21%other 7%Roman Catholic 2%

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 Barrett Town (18.5149°, -77.8018°, elevation 53 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).