Kourou weather in April

In April, Kourou sees average daytime highs of 28°C and overnight lows near 25°C, with 236 mm of rain across 25.3 wet days and about 12.1 hours of daylight. It is the 7th-warmest and 4th-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 11% 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 12 min by month's end. Set against the rest of the year, April is Kourou's 10th-clearest and 4th-windiest month. For the whole year in context, see Kourou's year-round climate.

Daytime high
28°
7th warmest
Overnight low
25°
12th coldest
Rainfall
236 mm
25.3 wet days
Daylight
12 h 06 min
6:27 AM – 6:34 PM
Cloud cover
72%
10th clearest
Wind
17 km/h
4th windiest
Solar energy
5.07 kWh/m²
Travel score
4.0
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

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

A typical April day in Kourou reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°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, April runs on par with March and on par with May.

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
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825

How April really feels in Kourou

Once humidity and wind are folded in, April 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

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

Kourou weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°2362611.74.1
Feb27° / 24°19122.511.84.2
Mar28° / 25°16523.8124.3
Apr28° / 25°23625.312.14.0
May28° / 25°39228.912.23.6
Jun28° / 24°34628.712.33.4
Jul29° / 24°2042612.33.8
Aug29° / 25°9016.812.24.8
Sep29° / 25°4010125.5
Oct30° / 25°491211.95.2
Nov29° / 25°12820.411.84.2
Dec28° / 24°24426.911.73.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33565
43565
53466
63466
73367
83367
93367
103367
113268
123268
133268
143268
153169
163169
173169
183169
193169
203169
213268
223268
233268
243268
253268
263268
273169
283169
293169
303169

Chance of precipitation in April

Any precipitation

Kourou gets around 236 mm of rain over 25.3 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 84% and peaks near 87% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
180
280
381
481
581
682
782
882
983
1083
1183
1284
1384
1484
1585
1685
1785
1885
1986
2086
2186
2286
2386
2486
2586
2686
2786
2886
2987
3087

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
14888
24879
33889
438710
538710
638611
728711
828612
928612
1028513
1128513
1228414
1328414
1428315
1528315
1618316
1718217
1818217
1918118
2018118
2118118
2208119
2308119
2408020
2508020
2607921
2707822
2807822
2907723
3007624

Wind in April

Winds average 17 km/h in April.

Across April, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in April

DaylightNight

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

Days grow by about 12 minutes over April. Sunrise moves from 6:34 AM to 6:23 AM, and sunset from 6:36 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:346:36
212.06:336:36
312.16:336:36
412.16:336:36
512.16:326:36
612.16:326:36
712.16:316:35
812.16:316:35
912.16:306:35
1012.16:306:35
1112.16:296:35
1212.16:296:35
1312.16:296:35
1412.16:286:34
1512.16:286:34
1612.16:276:34
1712.16:276:34
1812.16:276:34
1912.16:266:34
2012.16:266:34
2112.16:266:34
2212.16:256:34
2312.16:256:33
2412.16:246:33
2512.26:246:33
2612.26:246:33
2712.26:246:33
2812.26:236:33
2912.26:236:33
3012.26:236:33

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.07 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 6.25 kWh/m² in September across the year — April's 5.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in April

Hazard calendar for Kourou

In seasonPeak

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

Kourou'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 April a good time to visit Kourou?

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

4.0
Sightseeing
8th-best month of the year
4.3
Beach & pool
8th-best month of the year

April is a reasonable time to visit Kourou for sightseeing.

What to pack for Kourou in April

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

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

light clothesrain gearsun protection

Sea temperature near Kourou in April

The nearest coast averages about 27°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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
Sep28Tropical
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Kourou in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kourou peaks around April 11 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 11UV 14Dec 11UV 10
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Kourou 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 Kourou 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 Kourou?

Kourou sits at 5.2°N, 52.6°W, 7 m above sea level, in French Guiana. The nearest listed city is Cayenne, 42 km away.

CayenneMatouryRémire-MontjolySaint-Laurent-du-MaroniOiapoque

Topography around Kourou

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

Within 3 km, the terrain around Kourou has only modest variations in elevation — a maximum elevation change of 67 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 165 m; within 80 km, significant variations in elevation — a maximum elevation change of 403 m.

The land around Kourou is covered by water (45%) within 3 km, water (47%) and trees (34%) within 16 km, and trees (57%) and water (37%) within 80 km.

3 km
67 m
16 km
165 m
80 km
403 m
treesgrasslandartificial surfaceswaterwetlandmangroves
April weather nearby: Cayenne 42 km · Matoury 50 km · Rémire-Montjoly 50 km · Saint-Laurent-du-Maroni 158 km · Oiapoque 172 km · Blauwgrond 284 km · Rainville 286 km · Beekhuizen 289 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 Kourou (5.1628°, -52.6427°, 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).