Lethem weather in April

In April, Lethem sees average daytime highs of 31°C and overnight lows near 23°C, with 188 mm of rain across 17.1 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 5th-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 6% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of April to 12 h 06 min by month's end. Set against the rest of the year, April is Lethem's 10th-clearest and 5th-windiest month. For the whole year in context, see Lethem's year-round climate.

Daytime high
31°
5th warmest
Overnight low
23°
10th coldest
Rainfall
188 mm
17.1 wet days
Daylight
12 h 06 min
5:57 AM – 6:02 PM
Cloud cover
77%
10th clearest
Wind
10 km/h
5th windiest
Solar energy
4.77 kWh/m²
Travel score
3.6
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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical April day in Lethem reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, April runs on par with March and about 2°C warmer than May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253023
263023
273023
283023
293023
303023

How April really feels in Lethem

Once humidity and wind are folded in, April averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Lethem weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 5th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12971
22971
32971
42872
52773
62674
72575
82575
92476
102278
112278
122179
132080
142080
151981
161981
171882
181981
191981
201981
211882
221882
231882
241882
251783
261783
271783
281684
291585
301585

Chance of precipitation in April

Any precipitation

Lethem gets around 188 mm of rain over 17.1 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 58% and peaks near 74% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
138
239
340
441
542
644
745
847
949
1050
1152
1254
1355
1457
1559
1661
1762
1863
1965
2066
2166
2267
2368
2469
2569
2670
2771
2872
2973
3074

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
101351351
201350361
301250371
401249381
501248401
601146421
701144441
811043461
911041481
101939501
111938511
121836541
131834561
141733590
151632610
161630630
171529650
181528660
191427680
201426690
210326710
220325720
230225730
240225730
250125740
260124750
270124750
280123760
290023770
300022780

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 hours at the start of April to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over April. Sunrise moves from 6:03 AM to 5:53 AM, and sunset from 6:05 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:036:05
212.06:036:04
312.06:026:04
412.06:026:04
512.06:016:04
612.06:016:04
712.06:016:03
812.06:006:03
912.16:006:03
1012.15:596:03
1112.15:596:03
1212.15:596:02
1312.15:586:02
1412.15:586:02
1512.15:586:02
1612.15:576:02
1712.15:576:01
1812.15:576:01
1912.15:566:01
2012.15:566:01
2112.15:566:01
2212.15:556:01
2312.15:556:01
2412.15:556:00
2512.15:546:00
2612.15:546:00
2712.15:546:00
2812.15:546:00
2912.15:536:00
3012.15:536:00

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.77 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 — April's 4.77 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.1Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.9Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.6Bright
234.5Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.3Bright
294.3Bright
304.2Bright
Planning a trip in April

Hazard calendar for Lethem

In seasonPeak

In April, Lethem sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

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 April a good time to visit Lethem?

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

3.6
Sightseeing
5th-best month of the year
5.2
Beach & pool
8th-best month of the year

April is a weaker month for outdoor sightseeing in Lethem.

What to pack for Lethem in April

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

In April, Lethem sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Lethem in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 15 (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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).