Climate and Weather Charts
Guam Antonio B. Won Pat International Airport (GUM)
(Guam, Guam)
Guam features a marine, tropical climate and is a particularly appealing island, being located in the warm Pacific Ocean, which moderates much of its weather. Constant high temperatures offer virtually no difference all through the year, hovering around 30°C / 86°F most months.
April to June tend to experience the hottest climate in Guam, with temperatures averaging 31°C / 88°F and often reaching 35°C / 95°F or more. Levels of precipitation are lowest at this time of the year, gradually increasing until July and August, the wettest months, when tropical showers and storms are most likely. The average annual daytime temperatures in Guam are around 30°C / 86°F.
Climate Description: Marine, tropical climate
Guam Antonio B. Won Pat Airport (GUM) Location: Northern Hemisphere, Guam
Annual High / Low Daytime Temperatures at Guam: 31°C / 29°C (88°F / 84°F)
Average Daily January Temperature: 29°C / 84°F
Average Daily June Temperature: 31°C / 88°F
Annual Rainfall / Precipication Guam at Airport (GUM): 2363 mm / 93 inches
Guam Antonio B. Won Pat Airport (GUM):
Climate and Weather Charts
Temperature Chart |
| Temperatures |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Average |
Maximum
Celcius (°C) |
29 |
29 |
30 |
31 |
31 |
31 |
30 |
30 |
30 |
30 |
30 |
29 |
30 |
Minimum
Celcius (°C) |
22 |
23 |
24 |
25 |
25 |
25 |
25 |
25 |
23 |
24 |
24 |
24 |
24 |
Maximum
Fahrenheit (°F) |
84 |
84 |
86 |
88 |
88 |
88 |
86 |
86 |
86 |
86 |
86 |
84 |
86 |
Minimum
Fahrenheit (°F) |
72 |
73 |
75 |
77 |
77 |
77 |
77 |
77 |
73 |
75 |
75 |
75 |
75 |
Rainfall / Precipitation Chart |
| Rainfall |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Total |
| Rainfall (mm) |
86 |
132 |
86 |
71 |
122 |
173 |
345 |
335 |
328 |
297 |
218 |
170 |
2363 |
| Rainfall (inches) |
3.4 |
5.2 |
3.4 |
2.8 |
4.8 |
6.8 |
13.6 |
13.2 |
12.9 |
11.7 |
8.6 |
6.7 |
93 |
Seasonal Chart |
| Seasons |
Average
Temp
(Max °C) |
Average
Temp
(Min °C) |
Average
Temp
(Max °F) |
Average
Temp
(Min °F) |
Total
Rainfall
(mm) |
Total
Rainfall
(inches) |
| Mar to May (Spring) |
31 |
25 |
87 |
76 |
279 |
11 |
| Jun to Aug (Summer) |
30 |
25 |
87 |
77 |
853 |
34 |
| Sept to Nov (Autumn / Fall) |
30 |
24 |
86 |
74 |
843 |
33 |
| Dec to Feb (Winter) |
29 |
23 |
84 |
73 |
388 |
15 |
