Tamuning-Tumon-Harmon Village weather in May

In May, Tamuning-Tumon-Harmon Village sees average daytime highs of 28°C and overnight lows near 27°C, with 81 mm of rain across 15 wet days and about 12.6 hours of daylight. It is the 7th-warmest and 8th-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 41% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 42 min by month's end. Set against the rest of the year, May is Tamuning-Tumon-Harmon Village's 7th-clearest and 7th-windiest month. For the whole year in context, see Tamuning-Tumon-Harmon Village's year-round climate.

Daytime high
28°
7th warmest
Overnight low
27°
10th coldest
Rainfall
81 mm
15 wet days
Daylight
12 h 36 min
5:58 AM – 6:36 PM
Cloud cover
55%
7th clearest
Wind
22 km/h
7th windiest
Solar energy
6.59 kWh/m²
Travel score
5.6
out of 10

Tamuning-Tumon-Harmon Village is village of Guam, a municipality in the United States territory.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Tamuning-Tumon-Harmon Village 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 28°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)
12826
22826
32826
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 Tamuning-Tumon-Harmon Village

Once humidity and wind are folded in, May averages 23 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
23
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.

Tamuning-Tumon-Harmon Village weather by month

How May compares with the rest of the year at a glance. May is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°7114.711.36.0
Feb27° / 26°5111.311.66.3
Mar27° / 26°4510.211.96.7
Apr27° / 26°6711.112.36.5
May28° / 27°811512.65.6
Jun28° / 27°14020.412.84.4
Jul28° / 26°27328.412.73.3
Aug28° / 26°35029.212.43.2
Sep28° / 26°31427.212.13.3
Oct28° / 26°27927.511.73.6
Nov28° / 27°17521.511.44.5
Dec28° / 26°9316.811.25.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% 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 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36040
45842
55743
65743
75545
85545
95545
105446
115347
125347
135347
145446
155446
165545
175545
185545
195644
205644
215644
225743
235644
245644
255644
265644
275644
285644
295545
305446
315446

Chance of precipitation in May

Any precipitation

Tamuning-Tumon-Harmon Village gets around 81 mm of rain over 15 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 48% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
143
243
343
443
543
643
743
843
944
1044
1145
1246
1346
1447
1548
1648
1749
1849
1950
2050
2151
2252
2352
2453
2553
2654
2754
2855
2955
3055
3156

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 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
14654
24555
34555
44456
54357
64357
74258
84159
94060
103961
113862
123763
133664
143565
153565
163466
173367
183268
193169
203169
213070
222971
232971
242872
252872
262773
272674
282674
292575
302476
312377

Wind in May

Winds average 22 km/h in May.

Across May, daily wind ranges from about 20 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
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1023breezy
1123breezy
1223breezy
1323breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 42 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 6:04 AM to 5:56 AM, and sunset from 6:32 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:046:32
212.56:036:32
312.56:036:33
412.56:036:33
512.56:026:33
612.56:026:33
712.56:016:34
812.56:016:34
912.66:016:34
1012.66:006:34
1112.66:006:34
1212.66:006:35
1312.65:596:35
1412.65:596:35
1512.65:596:36
1612.65:586:36
1712.65:586:36
1812.65:586:36
1912.65:586:37
2012.75:586:37
2112.75:576:37
2212.75:576:37
2312.75:576:38
2412.75:576:38
2512.75:576:38
2612.75:576:39
2712.75:576:39
2812.75:576:39
2912.75:566:40
3012.75:566:40
3112.75:566:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.59 kWh/m².

For context, solar energy here swings from a low near 4.86 kWh/m² to a high of 6.68 kWh/m² in April across the year — May's 6.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.7Intense
56.7Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in May

Hazard calendar for Tamuning-Tumon-Harmon Village

In seasonPeak

In May, Tamuning-Tumon-Harmon Village sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Tamuning-Tumon-Harmon Village sits in the Pacific typhoon belt; the season peaks July–October.

Tamuning-Tumon-Harmon Village's monsoon runs July–November, when most of the year's rain falls.

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

Is May a good time to visit Tamuning-Tumon-Harmon Village?

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

5.6
Sightseeing
5th-best month of the year
6.1
Beach & pool
4th-best month of the year

May is a reasonable time to visit Tamuning-Tumon-Harmon Village for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tamuning-Tumon-Harmon Village in May

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

In May, Tamuning-Tumon-Harmon Village sees daytime highs around 28°C and nights near 27°C. Pack light clothes, rain gear and sun protection. Worth having: a windbreaker. About 15 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Tamuning-Tumon-Harmon Village 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 16 km away) is warmest in July at about 29°C and coldest in February near 28°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
Jan28Warm
Feb28Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Tamuning-Tumon-Harmon Village 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 Tamuning-Tumon-Harmon Village peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 highAug 18UV 14Dec 19UV 9
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec9Very high
Location & terrain

Where is Tamuning-Tumon-Harmon Village?

Tamuning-Tumon-Harmon Village sits at 13.5°N, 144.8°E, 13 m above sea level, in Guam. The nearest listed city is Tumon, 0.0 km away.

HagatnaMangilao VillageDededo VillageYigo Village

Topography around Tamuning-Tumon-Harmon Village

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tamuning-Tumon-Harmon Village.

Within 3 km, the terrain around Tamuning-Tumon-Harmon Village has only modest variations in elevation — a maximum elevation change of 109 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 308 m; within 80 km, significant variations in elevation — a maximum elevation change of 387 m.

The land around Tamuning-Tumon-Harmon Village is covered by water (31%), trees (24%) and artificial surfaces (23%) within 3 km, water (59%) and trees (28%) within 16 km, and water (94%) within 80 km.

3 km
109 m
16 km
308 m
80 km
387 m
treesgrasslandartificial surfacesbare terrainwater
May weather nearby: Tumon 0.0 km · Hagatna 4.0 km · Mangilao Village 5.0 km · Dededo Village 7.0 km · Yigo Village 13 km · Saipan 219 km · Ngerulmud 1,294 km · Koror 1,318 km

Guam travel facts

Power plugs
Type A / B
110 V · 60 Hz
GDP per capita
$41,833
2022
Safe drinking water
94%
of population, 2024
Homicide rate
4.3
per 100k, 2019
Income group
High
World Bank
Religion
Christian 94%unaffiliated 2%other 2%folk religions 2%

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 Tamuning-Tumon-Harmon Village (13.4877°, 144.7814°, elevation 13 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).