Liberia weather in May

In May, Liberia sees average daytime highs of 32°C and overnight lows near 23°C, with 243 mm of rain across 17.9 wet days and about 12.5 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 30°C by the end. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Liberia's 7th-clearest and 8th-windiest month. For the whole year in context, see Liberia's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
23°
12th coldest
Rainfall
243 mm
17.9 wet days
Daylight
12 h 30 min
5:23 AM – 5:53 PM
Cloud cover
79%
7th clearest
Wind
8 km/h
8th windiest
Solar energy
5.42 kWh/m²
Travel score
3.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 30°C by the end.

A typical May day in Liberia reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13323
23323
33323
43323
53323
63323
73323
83223
93223
103223
113223
123223
133223
143223
153223
163223
173123
183123
193123
203123
213123
223123
233123
243123
253023
263023
273023
283023
293023
303023
313023

How May really feels in Liberia

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.

Liberia weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°30.611.47.1
Feb30° / 22°20.311.66.5
Mar32° / 22°30.911.95.4
Apr33° / 23°304.712.24.0
May32° / 23°24317.912.53.3
Jun30° / 23°27622.512.63.3
Jul30° / 23°16116.412.64.1
Aug30° / 22°20719.612.43.7
Sep29° / 22°35225.712.13.1
Oct29° / 22°36125.111.83.5
Nov29° / 22°10911.411.55.3
Dec29° / 22°12211.46.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23367
33268
43169
53070
63070
72971
82773
92773
102575
112575
122377
132278
142179
152080
161882
171882
181783
191684
201585
211486
221486
231387
241387
251288
261288
271189
281189
291090
301090
311090

Chance of precipitation in May

Any precipitation

Liberia gets around 243 mm of rain over 17.9 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 58% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
132
233
334
435
536
637
738
839
941
1043
1145
1248
1351
1454
1557
1659
1762
1865
1967
2069
2172
2273
2375
2477
2578
2679
2780
2881
2981
3081
3181

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 74% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1652420
2551440
3548470
4446490
5444520
6442540
7440560
8438580
9335620
10333640
11330661
12328681
13325711
14223741
15220771
16218782
17216802
18214822
19113842
20111862
21110872
2219882
2318892
2417902
2506922
2605932
2705932
2804942
2904942
3003952
3103952

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 6 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
128calm
138calm
148calm
158calm
168calm
178calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:28 AM to 5:22 AM, and sunset from 5:50 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:285:50
212.45:275:50
312.45:275:50
412.45:275:50
512.45:265:51
612.45:265:51
712.45:265:51
812.45:255:51
912.45:255:51
1012.45:255:51
1112.55:255:52
1212.55:245:52
1312.55:245:52
1412.55:245:52
1512.55:245:52
1612.55:235:53
1712.55:235:53
1812.55:235:53
1912.55:235:53
2012.55:235:53
2112.55:235:54
2212.55:225:54
2312.55:225:54
2412.55:225:54
2512.55:225:55
2612.55:225:55
2712.65:225:55
2812.65:225:55
2912.65:225:56
3012.65:225:56
3112.65:225:56

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.47 kWh/m² to a high of 6.56 kWh/m² in March across the year — May's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Liberia

In seasonPeak

In May, Liberia sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Liberia's monsoon runs August–October, when most of the year's rain falls.

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

Is May a good time to visit Liberia?

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

3.3
Sightseeing
10th-best month of the year
5.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Liberia.

What to pack for Liberia in May

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

In May, Liberia sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Liberia in May

The nearest coast averages about 29°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 20 km away) is warmest in May at about 29°C and coldest in February 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
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Liberia 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 Liberia peaks around March 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 19UV 14Dec 15UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec9Very high

Air quality in Liberia 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 Liberia is worst in July — around 20 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1619 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar11Good
Apr19Moderate
May19Moderate
Jun16Moderate
Jul20Moderate
Aug16Moderate
Sep12Good
Oct9Good
Nov7Good
Dec6Good
Location & terrain

Where is Liberia?

Liberia sits at 10.6°N, 85.4°W, 148 m above sea level, in Costa Rica. The nearest listed city is Cañas, 44 km away.

CañasSan JoséNicoyaTamarindoMonteverdeSan Juan del SurLa FortunaSan Carlos

Topography around Liberia

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

Within 3 km, the terrain around Liberia has only modest variations in elevation — a maximum elevation change of 109 m around an average of 151 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 726 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,977 m.

The land around Liberia is covered by grassland (38%), trees (35%) and artificial surfaces (24%) within 3 km, trees (57%) and grassland (37%) within 16 km, and trees (46%) and water (32%) within 80 km.

3 km
109 m
16 km
726 m
80 km
1,977 m
treesgrasslandcroplandartificial surfaceswatermangroves
May weather nearby: Cañas 44 km · San José 48 km · Nicoya 54 km · Tamarindo 58 km · Monteverde 78 km · San Juan del Sur 83 km · La Fortuna 89 km · San Carlos 90 km

Costa Rica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$19,970
2025
Happiness
7.4 / 10
World Happiness, 2025
Safe drinking water
81%
of population, 2024
Homicide rate
17.7
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 516
Religion
Roman Catholic 48%none 27%Evangelical and Pentecostal 20%other 3%

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 Liberia (10.6352°, -85.4378°, elevation 148 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).