Costa Rica weather in April

In April, Costa Rica sees average daytime highs of 29°C and overnight lows near 20°C, with 81 mm of rain across 12.4 wet days and about 11.6 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 43% of the time in April, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 24 min by month's end. Set against the rest of the year, April is Costa Rica's 6th-clearest and 8th-windiest month. For the whole year in context, see Costa Rica's year-round climate.

Daytime high
29°
6th warmest
Overnight low
20°
5th coldest
Rainfall
81 mm
12.4 wet days
Daylight
11 h 36 min
6:45 AM – 6:20 PM
Cloud cover
51%
6th clearest
Wind
7 km/h
8th windiest
Solar energy
5.1 kWh/m²
Travel score
5.0
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical April day in Costa Rica reaches about 29°C in the afternoon and slips back to 20°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, April runs on par with March and about 2°C warmer than May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153020
163020
173020
182920
192920
202920
212920
222919
232919
242919
252919
262919
272919
282919
292919
302919

How April really feels in Costa Rica

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.

Costa Rica weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°25626.2133.3
Feb29° / 21°21523.612.63.3
Mar30° / 21°18123.812.13.6
Apr29° / 20°8112.411.65.0
May28° / 18°395.711.17.0
Jun28° / 17°182.410.97.9
Jul28° / 16°111.4117.6
Aug30° / 18°172.511.46.0
Sep31° / 20°678.711.94.5
Oct31° / 21°12918.512.43.7
Nov30° / 21°17522.212.93.5
Dec29° / 21°21725.613.13.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25248
35446
45545
55644
65743
75842
85842
95842
105842
115941
125941
135842
145941
155941
165941
176040
186040
196139
206238
216337
226535
236634
246733
256832
266931
277030
287030
297129
307129

Chance of precipitation in April

Any precipitation

Costa Rica gets around 81 mm of rain over 12.4 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 42% and peaks near 63% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
163
262
360
458
557
656
755
853
952
1051
1150
1249
1347
1446
1544
1643
1741
1839
1938
2036
2134
2232
2330
2428
2526
2625
2723
2822
2921
3020

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 59% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10197317
21197316
311107216
411117215
511117314
611127313
722137112
822147111
923156911
1023166910
112317699
122418679
132519668
143521647
153622627
163624616
173725605
182827585
192828575
203930544
2131031524
2231132513
2331233493
2431334463
2541435442
2641636422
2751736402
2851837382
2962037362
3072137341

Wind in April

Winds average 7 km/h in April.

Across April, 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.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 48 min at the start of April to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over April. Sunrise moves from 6:42 AM to 6:49 AM, and sunset from 6:32 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:426:32
211.86:426:32
311.86:426:31
411.86:436:30
511.86:436:29
611.86:436:28
711.76:436:27
811.76:436:27
911.76:446:26
1011.76:446:25
1111.76:446:24
1211.66:446:23
1311.66:456:22
1411.66:456:22
1511.66:456:21
1611.66:456:20
1711.66:466:19
1811.56:466:19
1911.56:466:18
2011.56:466:17
2111.56:476:16
2211.56:476:16
2311.56:476:15
2411.46:486:14
2511.46:486:14
2611.46:486:13
2711.46:486:12
2811.46:496:12
2911.46:496:11
3011.46:496:10

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.1 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 5.99 kWh/m² in October across the year — April's 5.1 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in April

Hazard calendar for Costa Rica

In seasonPeak

None of Costa Rica's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Costa Rica's monsoon runs October–March, when most of the year's rain falls.

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

Is April a good time to visit Costa Rica?

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

5.0
Sightseeing
5th-best month of the year
6.6
Beach & pool
6th-best month of the year

April is a reasonable time to visit Costa Rica for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Costa Rica in April

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

In April, Costa Rica sees daytime highs around 29°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Costa Rica in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Costa Rica peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 22UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct10Extreme
Nov13Extreme
Dec14Extreme

Air quality in Costa Rica 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 Costa Rica is worst in September — around 24 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (June, 5 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1722 µg/m³Jun 125 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr5Good
May5Good
Jun5Good
Jul8Good
Aug10Good
Sep24Moderate
Oct12Moderate
Nov6Good
Dec6Good
Location & terrain

Where is Costa Rica?

Costa Rica sits at 18.5°S, 53.1°W, 646 m above sea level, in Brazil. The nearest listed city is Chapadão do Sul, 60 km away.

Topography around Costa Rica

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

Within 3 km, the terrain around Costa Rica has only modest variations in elevation — a maximum elevation change of 160 m around an average of 655 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 616 m.

The land around Costa Rica is covered by grassland (39%) and trees (22%) within 3 km, cropland (41%), grassland (28%) and trees (27%) within 16 km, and cropland (42%), grassland (31%) and trees (23%) within 80 km.

3 km
160 m
16 km
307 m
80 km
616 m
treesshrubsgrasslandcroplandartificial surfaceswater
April weather nearby: Chapadão do Sul 60 km · Mineiros 124 km · Alto Araguaia 137 km · Cassilândia 160 km · Jataí 166 km · Coxim 172 km · São Gabriel do Oeste 178 km · Rio Verde de Mato Grosso 185 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Costa Rica (-18.5439°, -53.1292°, elevation 646 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. 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).