Roatan weather in May

In May, Roatan sees average daytime highs of 28°C and overnight lows near 27°C, with 44 mm of rain across 7.6 wet days and about 12.8 hours of daylight. It is the 5th-warmest and 11th-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 43% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Roatan's 6th-clearest and 5th-windiest month. For the whole year in context, see Roatan's year-round climate.

Daytime high
28°
5th warmest
Overnight low
27°
9th coldest
Rainfall
44 mm
7.6 wet days
Daylight
12 h 48 min
5:20 AM – 6:05 PM
Cloud cover
49%
6th clearest
Wind
24 km/h
5th windiest
Solar energy
6.71 kWh/m²
Travel score
6.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Roatan reaches about 28°C in the afternoon and slips back to 27°C overnight — a 1°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, May runs on par with April and on par with June.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12827
22827
32827
42827
52827
62827
72827
82827
92827
102827
112827
122827
132827
142827
152827
162827
172827
182827
192827
202827
212827
222827
232827
242827
252827
262827
272827
282827
292827
302827
312827

How May really feels in Roatan

Once humidity and wind are folded in, May averages 9 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
9
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.

Roatan weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 24°16417.311.16.0
Feb26° / 25°6410.511.56.9
Mar26° / 25°549.511.97.4
Apr27° / 26°274.912.47.8
May28° / 27°447.612.86.8
Jun28° / 27°569.9135.8
Jul28° / 27°6113.612.95.8
Aug28° / 27°8215.412.55.2
Sep29° / 27°12117.812.14.6
Oct28° / 26°3092311.64.4
Nov27° / 25°31022.511.24.7
Dec26° / 25°17419.8115.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37327
47228
57228
67228
77129
87129
97030
106931
116832
126634
136535
146436
156238
166139
176040
185743
195644
205446
215347
225050
234951
244753
254654
264456
274456
284159
294060
304060
313961

Chance of precipitation in May

Any precipitation

Roatan gets around 44 mm of rain over 7.6 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 24% and peaks near 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
114
215
315
415
516
616
717
818
919
1020
1121
1222
1323
1424
1525
1626
1727
1828
1929
2029
2130
2230
2331
2431
2531
2631
2731
2831
2931
3031
3131

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
134552
224454
324454
424355
524355
624454
714455
814554
914554
1024652
1124652
1224652
1324652
1424652
1524553
1624553
1724553
1824454
1924355
2014257
2114158
2214059
2313861
2413663
2513465
2613366
2713168
2812970
2902872
3002674
3102575

Wind in May

Winds average 24 km/h in May.

Across May, daily wind ranges from about 23 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
425breezy
525breezy
625breezy
725breezy
825breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:26 AM to 5:17 AM, and sunset from 6:01 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:266:01
212.65:256:01
312.65:256:01
412.65:246:02
512.65:246:02
612.65:236:02
712.75:236:02
812.75:236:03
912.75:226:03
1012.75:226:03
1112.75:216:04
1212.75:216:04
1312.75:216:04
1412.75:206:05
1512.75:206:05
1612.85:206:05
1712.85:196:06
1812.85:196:06
1912.85:196:06
2012.85:196:07
2112.85:186:07
2212.85:186:07
2312.85:186:08
2412.85:186:08
2512.85:176:08
2612.95:176:09
2712.95:176:09
2812.95:176:09
2912.95:176:10
3012.95:176:10
3112.95:176:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.71 kWh/m².

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 6.95 kWh/m² in April across the year — May's 6.71 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
66.9Intense
76.9Intense
86.9Intense
96.9Intense
106.9Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.6Intense
206.6Intense
216.6Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.3Intense
Planning a trip in May

Hazard calendar for Roatan

In seasonPeak

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

Roatan sits in the Atlantic hurricane belt; the season peaks August–October.

Roatan's monsoon runs October–January, when most of the year's rain falls.

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

Is May a good time to visit Roatan?

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

6.8
Sightseeing
4th-best month of the year
7.3
Beach & pool
2nd-best month of the year

May is a reasonable time to visit Roatan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Roatan in May

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

In May, Roatan sees daytime highs around 28°C and nights near 27°C. Pack light clothes and sun protection. Worth having: a windbreaker. About 8 days see rain.

light clothessun protectiona windbreaker

Sea temperature near Roatan in May

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

The sea offshore is warmest in September at about 30°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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr28Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep30Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Roatan in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Roatan peaks around March 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 22UV 13Dec 16UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Roatan 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 Roatan is worst in July — around 33 µg/m³ PM2.5 (moderate), about 5.9× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1232 µg/m³Dec 146 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar9Good
Apr18Moderate
May22Moderate
Jun30Moderate
Jul33Moderate
Aug22Moderate
Sep13Moderate
Oct10Good
Nov6Good
Dec6Good
Location & terrain

Where is Roatan?

Roatan sits at 16.3°N, 86.5°W, 0 m above sea level, in Honduras. The nearest listed city is La Ceiba, 67 km away.

La CeibaSonagueraTocoaOlanchitoSabáArizonaTelaYoro

Topography around Roatan

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

Within 3 km, the terrain around Roatan has only modest variations in elevation — a maximum elevation change of 224 m around an average of 36 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 224 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,182 m.

The land around Roatan is covered by trees (51%) and water (43%) within 3 km, water (91%) within 16 km, and water (85%) within 80 km.

3 km
224 m
16 km
224 m
80 km
2,182 m
treesgrasslandartificial surfaceswater
May weather nearby: La Ceiba 67 km · Sonaguera 79 km · Tocoa 91 km · Olanchito 93 km · Sabá 99 km · Arizona 112 km · Tela 116 km · Yoro 145 km

Honduras travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$3,598
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
66%
of population, 2024
Homicide rate
31.4
per 100k, 2023
Road deaths
16.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 553
Religion
Evangelical 55%Roman Catholic 33%none 10%

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 Roatan (16.3155°, -86.5397°, elevation 0 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).