Saint-Laurent-du-Maroni weather in August

In August, Saint-Laurent-du-Maroni sees average daytime highs of 31°C and overnight lows near 23°C, with 148 mm of rain across 19.5 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 8th-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 35% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of August to 12 h 06 min by month's end. Set against the rest of the year, August is Saint-Laurent-du-Maroni's 2nd-clearest and 10th-windiest month. For the whole year in context, see Saint-Laurent-du-Maroni's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
23°
6th coldest
Rainfall
148 mm
19.5 wet days
Daylight
12 h 12 min
6:35 AM – 6:46 PM
Cloud cover
52%
2nd clearest
Wind
7 km/h
10th windiest
Solar energy
5.68 kWh/m²
Travel score
3.6
out of 10

Saint-Laurent-du-Maroni is commune in Guyane, France.

Density
5/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Saint-Laurent-du-Maroni 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 30°C and 32°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
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
253123
263123
273123
283123
293123
303123
313123

How August really feels in Saint-Laurent-du-Maroni

Once humidity and wind are folded in, August 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 August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Saint-Laurent-du-Maroni weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°16421.411.74.1
Feb29° / 23°1231711.84.4
Mar29° / 23°10617.4124.4
Apr29° / 24°18621.312.13.7
May30° / 24°32027.412.23.1
Jun30° / 23°33228.112.32.9
Jul30° / 23°25426.512.33.1
Aug31° / 23°14819.512.23.6
Sep31° / 23°8814.6123.9
Oct31° / 23°10016.111.93.8
Nov31° / 23°17221.911.73.3
Dec29° / 23°20325.111.73.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 30% of August, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45743
55842
65941
76040
86139
96139
106238
116337
126337
136337
146436
156436
166535
176535
186634
196634
206733
216832
226832
236931
247030
257129
267228
277327
287426
297525
307624
317624

Chance of precipitation in August

Any precipitation

Saint-Laurent-du-Maroni gets around 148 mm of rain over 19.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 64% and peaks near 72% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
172
271
371
470
570
669
768
868
968
1067
1167
1267
1367
1467
1566
1666
1765
1864
1964
2063
2162
2261
2360
2459
2558
2657
2756
2855
2954
3053
3152

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 74% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17624
27624
37624
47624
57525
67525
77525
87426
97426
107426
117327
127327
137327
147327
157327
167327
177327
187327
197327
207327
217327
227327
237327
247327
257327
267426
277426
287426
297426
307426
317426

Wind in August

Winds average 7 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

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

Days shrink by about 6 minutes over August. Sunrise moves from 6:35 AM to 6:33 AM, and sunset from 6:49 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:356:49
212.26:356:49
312.26:356:49
412.26:356:49
512.26:356:49
612.26:356:48
712.26:356:48
812.26:356:48
912.26:356:48
1012.26:356:47
1112.26:356:47
1212.26:356:47
1312.26:356:47
1412.26:356:46
1512.26:356:46
1612.26:356:46
1712.26:356:45
1812.26:356:45
1912.26:356:45
2012.26:346:44
2112.26:346:44
2212.26:346:43
2312.16:346:43
2412.16:346:43
2512.16:346:42
2612.16:346:42
2712.16:336:41
2812.16:336:41
2912.16:336:40
3012.16:336:40
3112.16:336:39

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.68 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.17 kWh/m² in September across the year — August's 5.68 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.9Bright
255.9Bright
265.9Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in August

Is August a good time to visit Saint-Laurent-du-Maroni?

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

3.6
Sightseeing
7th-best month of the year
5.3
Beach & pool
5th-best month of the year

August is a weaker month for outdoor sightseeing in Saint-Laurent-du-Maroni.

What to pack for Saint-Laurent-du-Maroni in August

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

In August, Saint-Laurent-du-Maroni sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Saint-Laurent-du-Maroni in August

The nearest coast averages about 28°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 43 km away) is warmest in August at about 28°C and coldest in January near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb27Warm
Mar27Warm
Apr27Warm
May27Warm
Jun28Warm
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Saint-Laurent-du-Maroni in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saint-Laurent-du-Maroni peaks around March 24 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 24UV 14Dec 11UV 10
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Saint-Laurent-du-Maroni in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Saint-Laurent-du-Maroni is worst in February — around 24 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (August, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2024 µg/m³Aug 137 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb24Moderate
Mar24Moderate
Apr24Moderate
May19Moderate
Jun12Good
Jul8Good
Aug7Good
Sep10Good
Oct14Moderate
Nov12Good
Dec18Moderate
Location & terrain

Where is Saint-Laurent-du-Maroni?

Saint-Laurent-du-Maroni sits at 5.5°N, 54.0°W, 10 m above sea level, in French Guiana. The nearest listed city is Blauwgrond, 126 km away.

Topography around Saint-Laurent-du-Maroni

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint-Laurent-du-Maroni.

Within 3 km, the terrain around Saint-Laurent-du-Maroni has only modest variations in elevation — a maximum elevation change of 48 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, significant variations in elevation — a maximum elevation change of 574 m.

The land around Saint-Laurent-du-Maroni is covered by water (41%) and trees (34%) within 3 km, trees (86%) within 16 km, and trees (73%) and water (23%) within 80 km.

3 km
48 m
16 km
87 m
80 km
574 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
August weather nearby: Blauwgrond 126 km · Rainville 128 km · Beekhuizen 131 km · Paramaribo 132 km · Munder Buiten 133 km · Flora 134 km · Pontbuiten 134 km · Latour 135 km

French Guiana travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E
220 V · 50 Hz

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 Saint-Laurent-du-Maroni (5.5015°, -54.0292°, elevation 10 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).