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Guam · Month guide

Guam in May

Around 28 °C with 109 mm of rain and 8.6 hours of sun a day.

May is a solid shoulder-season month in Guam. Around 28 °C with 109 mm of rain and 8.6 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.

Plan a trip in May← Guam year-round
Match verdictMatch: Good option. Guam · May.
Good option
Guam · May
What the weather usually does

Guam · typical month

  • Day / night
    27 – 28 °C
    Year range 26 – 29 °C
  • Rainfall
    109 mm
    Year range 54 – 376 mm
  • Sunshine
    8.6 hr / day
    Year range 5.3 – 8.9 hr / day
Compare with another destination
1 regions · current month

Guam, taken apart

Safety · 1 government

What one government says about Guam

Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 1 government · Advisory last changed
See breakdown by country
AU

Exercise normal precautions

Changed Checked www.smartraveller.gov.au
Climate at a glance · 10-year ERA5

A decade of weather, in one page

Temperature°C
Temperature · 12-month climatologyGuam. Average daytime high by month in °C. Lowest in February (27.2), highest in November (28.5). Monthly means: 27.4, 27.2, 27.3, 27.7, 28.2, 28.5, 28.5, 28.5, 28.4, 28.4, 28.5, 28.2.
— daytime high— overnight low▬ typical range
View data table
MonthAverage daytime high (°C)Average overnight low (°C)Typical lowTypical high
January27.426.325.428.3
February27.226.125.127.8
March27.326.225.327.9
April27.726.525.728.4
May28.226.825.928.8
June28.526.825.929.0
July28.526.625.929.1
August28.526.625.829.3
September28.426.525.829.2
October28.426.625.929.1
November28.527.026.229.0
December28.226.826.128.7
Rainfallmm
Rainfall · 12-month climatologyGuam. Rainfall by month in mm. Lowest in March (54), highest in September (376). Monthly means: 79, 68, 54, 92, 109, 166, 282, 367, 376, 369, 194, 112.
View data table
MonthRainfall (mm)
January79
February68
March54
April92
May109
June166
July282
August367
September376
October369
November194
December112
Sunshinehr / day
Sunshine · 12-month climatologyGuam. Sunshine hours by month in hr / day. Lowest in August (5.3), highest in March (8.9). Monthly means: 7.9, 8.3, 8.9, 8.7, 8.6, 7.7, 6.1, 5.3, 5.5, 5.7, 7.3, 7.8.
View data table
MonthSunshine hours (hr / day)
January7.9
February8.3
March8.9
April8.7
May8.6
June7.7
July6.1
August5.3
September5.5
October5.7
November7.3
December7.8
Windkm/h
Wind · 12-month climatologyGuam. Average wind speed by month in km/h. Lowest in September (17.6), highest in February (31.8). Monthly means: 30.0, 31.8, 26.6, 26.0, 23.5, 21.1, 19.6, 17.9, 17.6, 20.6, 26.9, 30.3.
— average▬ typical range
View data table
MonthAverage wind speed (km/h)Typical lowTypical high
January30.017.740.9
February31.822.040.8
March26.614.336.4
April26.014.734.8
May23.511.932.4
June21.111.529.5
July19.69.329.3
August17.96.036.4
September17.67.430.8
October20.68.931.8
November26.915.736.2
December30.320.240.2
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← Earlier
April

Around 28 °C with 92 mm of rain and 8.7 hours of sun a day.

Later →
June

Around 28 °C with 166 mm of rain and 7.7 hours of sun a day.

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