Climate and average weather in Mabaruma

In Mabaruma, the weather is oppressive, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around June.

Best: early January to early May

Over the course of the year, the temperature in Mabaruma typically varies from 23°C to 30°C, and is rarely below 23°C or above 31°C. September is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Mabaruma for warm-weather activities is from early January to early May.

Hottest
Sep
30°
Coldest
Jan
23°
Wettest
Jun
266 mm
Driest
Mar
65 mm
Rain / yr
1943 mm
281 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
0 m
8.2°N
Clearest
Feb
59% cloud

Mabaruma is city.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Mabaruma weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to early May.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Mabaruma, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Mabaruma stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 30°C and low of 25°C; the coolest is January, with an average low of 23°C and high of 28°C.

Days typically run about 5°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2823
Feb2823
Mar2824
Apr2924
May2924
Jun2924
Jul2924
Aug3024
Sep3025
Oct3025
Nov2924
Dec2824

How hot and cold Mabaruma really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Mabaruma feels like about 37°C (around September 2). About 261 days a year carry some heat stress, peaking in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan31282323
Feb31282323
Mar31282424
Apr33292424
May33292424
Jun33292424
Jul34292424
Aug36302424
Sep37302525
Oct37302525
Nov35292424
Dec32282424

Average hourly temperature in Mabaruma

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on September afternoons, near 30°C, and coldest before dawn in January, near 23°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Mabaruma weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°13221.411.64.8
Feb28° / 23°7617.511.75.1
Mar28° / 24°6516.111.95.0
Apr29° / 24°8215.512.24.7
May29° / 24°16924.312.43.7
Jun29° / 24°26628.312.53.1
Jul29° / 24°24929.912.43.0
Aug30° / 24°20128.112.33.1
Sep30° / 25°12923.6123.4
Oct30° / 25°15923.511.83.5
Nov29° / 24°21226.411.63.3
Dec28° / 24°20326.511.53.7

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Mabaruma gets about 1943 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.3 months, from around May 15 to Sep 21, peaking in July at about 97% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Apr 5.

June is the wettest month by volume, with 266 mm over about 28 wet days; March is the driest, with 65 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 16 · 97%Apr 5 · 45%
Rain on a day (%)Rain days
Jan7021
Feb6218
Mar5216
Apr5316
May7824
Jun9428
Jul9630
Aug9128
Sep7924
Oct7624
Nov8826
Dec8527

Monthly rainfall

Over a full year, Mabaruma collects about 1943 mm of rain across 281 wet days — roughly 162 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 266 mm, while March is the driest at just 65 mm. The three wettest months alone bring about 37% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec132766582169266249201129159212203
Rainfall (mm)Rain days
Jan13221
Feb7618
Mar6516
Apr8216
May16924
Jun26628
Jul24930
Aug20128
Sep12924
Oct15924
Nov21226
Dec20327

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Mabaruma, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around December 26 and lasts for 4.0 months, ending around April 25. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 54% of the time on average.

The cloudier part of the year begins around April 26 and lasts for 3.4 months, ending around August 5. The cloudiest month is June, when it is overcast or mostly cloudy 79% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 5 · 57%Jun 8 · 20%mostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan5050
Feb5446
Mar5050
Apr4258
May2971
Jun2179
Jul2971
Aug4456
Sep4753
Oct3862
Nov2872
Dec3466

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 4, brings about 12 h 30 min of light; the shortest, around January 1, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.66:215:56
Feb11.76:226:06
Mar11.96:106:07
Apr12.25:546:05
May12.45:446:07
Jun12.55:456:14
Jul12.45:526:18
Aug12.35:556:11
Sep12.05:525:55
Oct11.85:505:39
Nov11.65:565:33
Dec11.56:105:41

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Mabaruma averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 8 days.

The sunnier stretch runs 2.1 months, from around Aug 19 to Oct 20. The sunniest month is September, with roughly 8 sunny days (gloomy).

The greyest month is June, down near 2 sunny days — about 71% fewer than the September peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedSep 48 daysJun 52 days
Sunny daysSky
Jan7Gloomy
Feb6Gloomy
Mar7Gloomy
Apr5Gloomy
May4Gloomy
Jun2Gloomy
Jul3Gloomy
Aug5Gloomy
Sep8Gloomy
Oct5Gloomy
Nov3Gloomy
Dec4Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Mabaruma is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 100% of the time. Even in January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Muggy (%)Oppressive (%)Miserable (%)
Jan3934
Feb8902
Mar6922
Apr28316
May05545
Jun04060
Jul03565
Aug01684
Sep01288
Oct01090
Nov01981
Dec06436

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Mabaruma is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 5.6 months, from around Dec 20 to Jun 7. The windiest month is March, averaging about 12 km/h (calm).

The calmer part of the year runs from around Jun 8 to Dec 19, with August the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmercalmlight breezeMar 16 · 12 km/hAug 8 · 7 km/h
Wind speed (km/h)Feels
Jan10calm
Feb12calm
Mar12calm
Apr12calm
May11calm
Jun9calm
Jul8calm
Aug7calm
Sep8calm
Oct8calm
Nov8calm
Dec9calm

Best time to visit Mabaruma

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Mabaruma throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late April, Mabaruma is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Mabaruma for general outdoor tourist activities is from late December to early May, with a peak score in the first week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 4 · 5.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan4.7fair
Feb5.1fair
Mar5.0fair
Apr4.7fair
May3.7fair
Jun3.2poor
Jul3.0poor
Aug3.1poor
Sep3.4poor
Oct3.5poor
Nov3.3poor
Dec3.8fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Mabaruma for hot-weather activities is from mid January to early May, with a peak score in the first week of April.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationApr 4 · 6.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Mabaruma, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Mabaruma packs about the same all year — highs hold near 30°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In September, Mabaruma sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

Sea temperature near Mabaruma

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 26 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
Apr28Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index (midday) in Mabaruma by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Mabaruma peaks around March 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 15Dec 11UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Average hourly UV index in Mabaruma

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in March the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan7.55.5
Feb86
Mar86.5
Apr8.56.5
May86.5
Jun86
Jul86
Aug86
Sep86
Oct86
Nov7.55
Dec75

Air quality in Mabaruma by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Mabaruma is worst in May — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (September, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateMay 1924 µg/m³Sep 1612 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb19Moderate
Mar20Moderate
Apr23Moderate
May24Moderate
Jun24Moderate
Jul18Moderate
Aug13Moderate
Sep12Good
Oct13Moderate
Nov12Moderate
Dec15Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Mabaruma is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Mabaruma banks about 5,994 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan481
Feb436
Mar496
Apr497
May515
Jun487
Jul507
Aug525
Sep521
Oct535
Nov499
Dec495

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Mabaruma receives about 5.0 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.3 and 5.7 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseMar 305.7 kWhDec 84.3 kWh
Solar energy (kWh/m²)Level
Jan4.7Bright
Feb5.1Bright
Mar5.6Bright
Apr5.6Bright
May5.1Bright
Jun4.5Bright
Jul4.8Bright
Aug5.3Bright
Sep5.7Bright
Oct5.3Bright
Nov4.5Bright
Dec4.3Bright

Where is Mabaruma?

Mabaruma sits at 8.2°N, 59.8°W, 0 m above sea level, in Guyana. The nearest listed city is Parika, 213 km away.

ParikaTumeremoBarticaGeorgetownEl Dorado

Topography around Mabaruma

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

Within 3 km, the terrain around Mabaruma has only modest variations in elevation — a maximum elevation change of 80 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 193 m; within 80 km, significant variations in elevation — a maximum elevation change of 382 m.

The land around Mabaruma is covered by trees (87%) within 3 km, trees (89%) within 16 km, and trees (69%) and water (28%) within 80 km.

3 km
80 m
16 km
193 m
80 km
382 m
treesgrasslandwaterwetlandmangroves
Nearby: Parika 213 km · Tumeremo 215 km · Bartica 237 km · Georgetown 237 km · Guasipati 247 km · El Dorado 263 km · Tucupita 267 km · Barrancas 271 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 Mabaruma (8.2038°, -59.7812°, 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. 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).