Lethem weather in January

In January, Lethem sees average daytime highs of 31°C and overnight lows near 22°C, with 46 mm of rain across 9.3 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 10% of the time in January, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of January to 11 h 54 min by month's end. Set against the rest of the year, January is Lethem's 5th-clearest and 2nd-windiest month. For the whole year in context, see Lethem's year-round climate.

Daytime high
31°
8th warmest
Overnight low
22°
6th coldest
Rainfall
46 mm
9.3 wet days
Daylight
11 h 48 min
6:14 AM – 6:03 PM
Cloud cover
68%
5th clearest
Wind
13 km/h
2nd windiest
Solar energy
4.96 kWh/m²
Travel score
4.6
out of 10

Lethem is Regional Capital of Alto Tcutu-Upper Essequibo, which is controlled by Guyana and claimed by Venezuela.

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 31°C through the month.

A typical January day in Lethem reaches about 31°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23122
33122
43122
53122
63122
73122
83122
93122
103122
113122
123122
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How January really feels in Lethem

Once humidity and wind are folded in, January averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Lethem weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°469.311.84.6
Feb31° / 22°478.211.94.5
Mar32° / 23°649.3124.1
Apr31° / 23°18817.112.13.6
May29° / 22°3862712.23.2
Jun29° / 22°36728.412.23.1
Jul29° / 22°36328.912.23.2
Aug30° / 22°26125.412.13.3
Sep31° / 23°15718.8123.5
Oct32° / 23°11516.411.93.5
Nov32° / 23°11415.611.83.5
Dec31° / 23°7513.611.84.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23961
33961
43961
53961
63961
73961
83961
93862
103763
113763
123664
133763
143763
153664
163664
173664
183565
193466
203367
213367
223268
233268
243268
253268
263268
273268
283268
293169
303169
313169

Chance of precipitation in January

Any precipitation

Lethem gets around 46 mm of rain over 9.3 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 30% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
333
432
531
631
731
831
931
1031
1131
1230
1330
1430
1529
1629
1729
1828
1928
2028
2128
2228
2329
2429
2529
2629
2729
2830
2930
3030
3130

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 89% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
165935
266133
366331
476330
576429
676627
786626
886725
986725
1096724
1196823
1296823
13106822
14106921
15107020
16116920
17117019
18126919
19126919
20126919
21136819
22136819
23136720
24136720
25146521
26146521
27146521
28146422
29146422
30146323
31146323

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light 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 11 h 48 min at the start of January to 11 h 54 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 6:08 AM to 6:17 AM, and sunset from 5:57 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:085:57
211.86:095:57
311.86:095:58
411.86:095:58
511.86:105:58
611.86:105:59
711.86:115:59
811.86:116:00
911.86:116:00
1011.86:126:01
1111.86:126:01
1211.86:126:02
1311.86:136:02
1411.86:136:02
1511.86:136:03
1611.86:146:03
1711.86:146:04
1811.86:146:04
1911.86:156:04
2011.86:156:05
2111.86:156:05
2211.86:156:05
2311.86:166:06
2411.86:166:06
2511.86:166:06
2611.86:166:07
2711.86:166:07
2811.86:176:07
2911.86:176:08
3011.96:176:08
3111.96:176:08

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.96 kWh/m².

For context, solar energy here swings from a low near 3.83 kWh/m² to a high of 5.74 kWh/m² in October across the year — January's 4.96 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in January

Hazard calendar for Lethem

In seasonPeak

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

Lethem's monsoon runs April–August, 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 Lethem?

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

4.6
Sightseeing
1st-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Lethem in January

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

In January, Lethem sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

UV index in Lethem in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lethem peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 21UV 15Jul 16UV 11
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Lethem 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 Lethem is worst in April — around 20 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 920 µg/m³Aug 2110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar20Moderate
Apr20Moderate
May14Moderate
Jun12Moderate
Jul11Good
Aug10Good
Sep11Good
Oct12Good
Nov12Moderate
Dec13Moderate
Location & terrain

Where is Lethem?

Lethem sits at 3.4°N, 59.8°W, 0 m above sea level, in Guyana. The nearest listed city is Boa Vista, 115 km away.

Boa VistaCantáMucajaíPacaraimaAlto AlegreSanta Elena de UairénCaracaraíRorainópolis

Topography around Lethem

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

Within 3 km, the terrain around Lethem has only modest variations in elevation — a maximum elevation change of 23 m around an average of 87 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 832 m; within 80 km, large variations in elevation — a maximum elevation change of 1,000 m.

The land around Lethem is covered by grassland (79%) within 3 km, grassland (85%) within 16 km, and grassland (68%) and trees (30%) within 80 km.

3 km
23 m
16 km
832 m
80 km
1,000 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetland
January weather nearby: Boa Vista 115 km · Cantá 123 km · Mucajaí 161 km · Pacaraima 190 km · Alto Alegre 196 km · Santa Elena de Uairén 200 km · Caracaraí 227 km · Rorainópolis 278 km

Guyana travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B / D / G
240 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$32,414
2025
Happiness
6.0 / 10
World Happiness, 2011
Safe drinking water
67%
of population, 2024
Homicide rate
19.1
per 100k, 2023
Road deaths
22.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 35%Hindu 25%other Christian 21%Roman Catholic 7%

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 Lethem (3.3726°, -59.7997°, elevation 0 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).