Saint-Laurent-du-Maroni weather in May

In May, Saint-Laurent-du-Maroni sees average daytime highs of 30°C and overnight lows near 24°C, with 320 mm of rain across 27.4 wet days and about 12.2 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 5% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is Saint-Laurent-du-Maroni's 12th-clearest and 7th-windiest month. For the whole year in context, see Saint-Laurent-du-Maroni's year-round climate.

Daytime high
30°
7th warmest
Overnight low
24°
12th coldest
Rainfall
320 mm
27.4 wet days
Daylight
12 h 12 min
6:25 AM – 6:40 PM
Cloud cover
81%
12th clearest
Wind
9 km/h
7th windiest
Solar energy
4.4 kWh/m²
Travel score
3.1
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 May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Saint-Laurent-du-Maroni reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
212924
222924
232924
242924
252924
262924
272924
282923
292923
302923
313023

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

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

Saint-Laurent-du-Maroni weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 2nd-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in May, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12674
22575
32575
42476
52377
62377
72278
82179
92080
101981
111981
121882
131882
141783
151783
161684
171684
181585
191585
201486
211486
221387
231387
241387
251387
261387
271387
281387
291387
301387
311486

Chance of precipitation in May

Any precipitation

Saint-Laurent-du-Maroni gets around 320 mm of rain over 27.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 88% and peaks near 93% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
180
281
382
482
583
683
784
885
985
1086
1186
1287
1387
1488
1588
1688
1789
1889
1990
2090
2190
2291
2391
2492
2592
2692
2792
2893
2993
3093
3193

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
16634
26535
36436
46337
56238
66139
76040
85941
95842
105743
115644
125644
135545
145446
155446
165347
175347
185347
195347
205248
215248
225347
235347
245347
255446
265446
275545
285545
295644
305743
315743

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 12 min at the start of May to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over May. Sunrise moves from 6:28 AM to 6:25 AM, and sunset from 6:39 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:286:39
212.26:276:39
312.26:276:39
412.26:276:39
512.26:276:39
612.26:266:39
712.26:266:39
812.26:266:39
912.26:266:39
1012.26:266:39
1112.26:256:39
1212.26:256:39
1312.26:256:40
1412.26:256:40
1512.26:256:40
1612.26:256:40
1712.36:256:40
1812.36:256:40
1912.36:256:40
2012.36:256:40
2112.36:256:41
2212.36:256:41
2312.36:246:41
2412.36:246:41
2512.36:246:41
2612.36:256:41
2712.36:256:42
2812.36:256:42
2912.36:256:42
3012.36:256:42
3112.36:256:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.4 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 — May's 4.4 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in May

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

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

3.1
Sightseeing
10th-best month of the year
4.1
Beach & pool
11th-best month of the year

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

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

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

In May, Saint-Laurent-du-Maroni sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

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

The nearest coast averages about 27°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 13 (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 May

GoodModeratePoorUnhealthyVery unhealthy

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