Cayenne weather in June

In June, Cayenne sees average daytime highs of 28°C and overnight lows near 25°C, with 344 mm of rain across 28.5 wet days and about 12.3 hours of daylight. It is the 6th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 14% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 12 h 18 min at the start of June to 12 h 18 min by month's end. Set against the rest of the year, June is Cayenne's 10th-clearest and 11th-windiest month. For the whole year in context, see Cayenne's year-round climate.

Daytime high
28°
6th warmest
Overnight low
25°
3rd coldest
Rainfall
344 mm
28.5 wet days
Daylight
12 h 18 min
6:21 AM – 6:38 PM
Cloud cover
71%
10th clearest
Wind
13 km/h
11th windiest
Solar energy
4.52 kWh/m²
Travel score
3.5
out of 10

Cayenne is commune and capital city of French Guiana.

Density
2,608/km²
people per km²
Founded
1664

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical June day in Cayenne reaches about 28°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, June runs on par with May and on par with July.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824

How June really feels in Cayenne

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

June sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Cayenne weather by month

How June compares with the rest of the year at a glance. June is the 6th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°24426.611.74.0
Feb27° / 25°20522.311.84.2
Mar28° / 25°17323.9124.3
Apr28° / 25°2582512.14.0
May28° / 25°41129.112.23.5
Jun28° / 25°34428.512.33.5
Jul29° / 25°18624.812.34.0
Aug30° / 25°6713.912.25.0
Sep30° / 25°237.2125.5
Oct30° / 25°4010.111.95.1
Nov29° / 25°12219.611.84.2
Dec28° / 25°25326.511.73.8

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 19% of June, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12476
22476
32476
42674
52674
62773
72872
82872
92872
102971
113070
123070
133070
143070
153169
163169
173169
183367
193367
203466
213565
223664
233763
243862
253961
264060
274258
284258
294258
304456

Chance of precipitation in June

Any precipitation

Cayenne gets around 344 mm of rain over 28.5 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
296
396
496
596
696
796
896
995
1095
1195
1295
1395
1495
1595
1695
1795
1895
1995
2094
2194
2294
2394
2493
2593
2692
2792
2891
2991
3090

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17327
27327
37426
47426
57525
67525
77525
87624
97624
107723
117723
127822
137921
148020
158020
168119
178218
188218
198317
208416
218515
228614
238713
248812
258812
268911
279010
28919
29919
30928

Wind in June

Winds average 13 km/h in June.

Across June, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light 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
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in June

DaylightNight

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

Days grow by about 0 minutes over June. Sunrise moves from 6:19 AM to 6:24 AM, and sunset from 6:35 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:196:35
212.36:196:35
312.36:196:35
412.36:196:35
512.36:196:36
612.36:196:36
712.36:206:36
812.36:206:36
912.36:206:37
1012.36:206:37
1112.36:206:37
1212.36:206:37
1312.36:216:37
1412.36:216:38
1512.36:216:38
1612.36:216:38
1712.36:216:38
1812.36:216:39
1912.36:226:39
2012.36:226:39
2112.36:226:39
2212.36:226:39
2312.36:226:40
2412.36:236:40
2512.36:236:40
2612.36:236:40
2712.36:236:40
2812.36:246:41
2912.36:246:41
3012.36:246:41

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.52 kWh/m².

For context, solar energy here swings from a low near 4.48 kWh/m² to a high of 6.26 kWh/m² in September across the year — June's 4.52 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.7Bright
254.7Bright
264.7Bright
274.7Bright
284.7Bright
294.8Bright
304.8Bright
Planning a trip in June

Hazard calendar for Cayenne

In seasonPeak

In June, Cayenne sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Cayenne's rainy season runs April–July, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Cayenne?

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

3.5
Sightseeing
11th-best month of the year
3.9
Beach & pool
11th-best month of the year

June is a weaker month for outdoor sightseeing in Cayenne.

What to pack for Cayenne in June

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

In June, Cayenne sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Cayenne in June

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

The sea at the nearest coast (about 21 km away) is warmest in July at about 28°C and coldest in January 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
Apr27Warm
May28Warm
Jun28Warm
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Cayenne in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Cayenne peaks around April 12 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 12UV 14Dec 11UV 10
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Cayenne in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cayenne is worst in February — around 28 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (August, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 1627 µg/m³Aug 157 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb28Moderate
Mar26Moderate
Apr26Moderate
May21Moderate
Jun12Moderate
Jul8Good
Aug7Good
Sep8Good
Oct10Good
Nov12Good
Dec21Moderate
Location & terrain

Where is Cayenne?

Cayenne sits at 4.9°N, 52.3°W, 7 m above sea level, in French Guiana. The nearest listed city is Rémire-Montjoly, 8.0 km away.

KourouOiapoqueSaint-Laurent-du-Maroni

Topography around Cayenne

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

Within 3 km, the terrain around Cayenne has only modest variations in elevation — a maximum elevation change of 84 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, significant variations in elevation — a maximum elevation change of 487 m.

The land around Cayenne is covered by water (58%) and artificial surfaces (20%) within 3 km, water (55%) and trees (30%) within 16 km, and trees (53%) and water (41%) within 80 km.

3 km
84 m
16 km
250 m
80 km
487 m
treesgrasslandartificial surfaceswaterwetlandmangroves
June weather nearby: Rémire-Montjoly 8.0 km · Matoury 10 km · Kourou 42 km · Oiapoque 134 km · Saint-Laurent-du-Maroni 198 km · Blauwgrond 324 km · Rainville 326 km · Beekhuizen 329 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 Cayenne (4.9381°, -52.3346°, elevation 7 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).