Masagua weather in May

In May, Masagua sees average daytime highs of 28°C and overnight lows near 20°C, with 299 mm of rain across 27.8 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 6th-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 8% of the time in May, and the air most often feels muggy.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Masagua's 7th-clearest and 8th-windiest month. For the whole year in context, see Masagua's year-round climate.

Daytime high
28°
5th warmest
Overnight low
20°
12th coldest
Rainfall
299 mm
27.8 wet days
Daylight
12 h 42 min
5:40 AM – 6:19 PM
Cloud cover
76%
7th clearest
Wind
4 km/h
8th windiest
Solar energy
5.57 kWh/m²
Travel score
3.5
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 Masagua reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, May runs about 1°C cooler than April and on par with June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142820
152820
162821
172821
182821
192821
202821
212821
222820
232820
242820
252820
262820
272820
282820
292820
302820
312820

Masagua weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°103.111.37.1
Feb30° / 18°92.711.56.6
Mar30° / 19°297.711.95.7
Apr30° / 20°8617.212.34.5
May28° / 20°29927.812.63.5
Jun28° / 20°36028.812.83.3
Jul28° / 20°32030.212.83.2
Aug28° / 20°35830.412.53.3
Sep27° / 20°42129.512.13.3
Oct27° / 20°41328.811.73.6
Nov28° / 19°14619.211.35.2
Dec28° / 18°277.411.26.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% 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 77%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24258
34159
43961
53862
63862
73565
83466
93268
103169
112872
122773
132575
142377
152377
162179
171981
181882
191684
201684
211585
221486
231486
241486
251387
261189
271189
281189
291189
301090
31991

Chance of precipitation in May

Any precipitation

Masagua gets around 299 mm of rain over 27.8 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 89% and peaks near 95% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
179
280
381
482
583
684
784
884
985
1085
1185
1286
1386
1487
1588
1688
1789
1890
1991
2092
2193
2293
2394
2494
2594
2695
2795
2895
2995
3095
3195

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1176428
2076429
3066331
4056332
5056134
6046135
7036136
8036136
9036037
10026038
11025939
12125839
13125740
14125641
15115642
16115543
17115444
18115345
19115246
20115147
21115147
22115048
23115048
24115048
25115048
26005248
27005149
28005149
29005149
30005149
31005149

Wind in May

Winds average 4 km/h in May.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 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 5:46 AM to 5:38 AM, and sunset from 6:16 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:466:16
212.55:456:16
312.55:456:16
412.55:446:16
512.55:446:16
612.65:436:17
712.65:436:17
812.65:436:17
912.65:426:17
1012.65:426:18
1112.65:416:18
1212.65:416:18
1312.65:416:18
1412.65:416:19
1512.65:406:19
1612.75:406:19
1712.75:406:20
1812.75:396:20
1912.75:396:20
2012.75:396:20
2112.75:396:21
2212.75:396:21
2312.75:386:21
2412.75:386:22
2512.75:386:22
2612.75:386:22
2712.75:386:23
2812.85:386:23
2912.85:386:23
3012.85:386:24
3112.85:386:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.57 kWh/m².

For context, solar energy here swings from a low near 4.76 kWh/m² to a high of 6.34 kWh/m² in March across the year — May's 5.57 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
75.9Bright
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Masagua

In seasonPeak

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

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

Masagua's monsoon runs May–October, 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 Masagua?

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

3.5
Sightseeing
8th-best month of the year
4.1
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Masagua.

What to pack for Masagua in May

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

In May, Masagua sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 28 days see rain.

light clothesrain gearsun protection

Sea temperature near Masagua in May

The nearest coast averages about 30°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 37 km away) is warmest in August at about 30°C and coldest in January near 28°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
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Masagua 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 Masagua peaks around April 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 14UV 13Nov 21UV 8
UV index (midday)Level
Jan9Very high
Feb13Extreme
Mar12Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep10Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Air quality in Masagua 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 Masagua is worst in April — around 47 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorApr 2046 µg/m³Jul 2030 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb34Moderate
Mar37Poor
Apr47Poor
May44Poor
Jun31Moderate
Jul30Moderate
Aug30Moderate
Sep33Moderate
Oct37Poor
Nov40Poor
Dec37Poor
Location & terrain

Where is Masagua?

Masagua sits at 14.2°N, 90.8°W, 118 m above sea level, in Guatemala. The nearest listed city is Escuintla, 13 km away.

La GomeraPalínPuerto San JoséAlotenangoYepocapaSanta María de Jesús

Topography around Masagua

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

Within 3 km, the terrain around Masagua has only modest variations in elevation — a maximum elevation change of 75 m around an average of 112 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 950 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,945 m.

The land around Masagua is covered by cropland (35%), trees (33%) and grassland (28%) within 3 km, trees (39%), grassland (31%) and cropland (26%) within 16 km, and trees (46%) and water (23%) within 80 km.

3 km
75 m
16 km
950 m
80 km
3,945 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Escuintla 13 km · Santa Lucía Cotzumalguapa 24 km · La Gomera 26 km · Palín 28 km · Puerto San José 31 km · Alotenango 32 km · Yepocapa 35 km · Santa María de Jesús 36 km

Guatemala travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 43% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
23.4
per 100k, 2023
Road deaths
22.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 510
Religion
Evangelical 46%Roman Catholic 42%none 11%

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 Masagua (14.2031°, -90.8481°, elevation 118 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).