Travel Weather Fairy🎊 Featured eventJuly related
Guam Liberation Day
📅 Jul 21 each year
An important Guam commemoration with parades, ceremonies and fireworks. Related events are often held throughout July.
Check official source →🇬🇺 Guam, U.S.
Guam Weather in July
Wet seasonFor Guam, July typically brings hot daytime weather and warm nights: the 10-year average high is about 30°C (86°F), while the average low is 25°C (77°F). The 10-year average shows around 29 rainy days and about 384 mm of monthly precipitation, so rain is a major part of trip planning.
Avg high85.7°F 29.9°CAvg low77.0°F 25.0°CRainy days~29.0 daysMonthly rain383.7 mm
🧳 Packing guide
What to wear in Guam in July
Packing for Guam in July is easiest with layers: light, breathable clothes work best, with sun protection for long outdoor days. Add a compact umbrella or light rain jacket because wet weather is common enough to affect sightseeing.
Travel takeaway: The month can work well for a trip if you are comfortable building indoor alternatives around wetter periods.
🗓️ Travel timing at a glance
Guam: 12-month travel weather
Guam is generally drier from January to May and wetter from July to November. Tropical storms and typhoons are an important late-summer and autumn consideration.
JanDry seasonFebDry seasonMarDry seasonAprDry seasonMayDry seasonJunTransition seasonJulWet seasonAugWet season · Typhoon riskSepWet season · Typhoon riskOctWet season · Typhoon riskNovWet season · Typhoon riskDecTransition season
Monthly labels summarize typical climate patterns for trip planning. Always check the latest forecast and tropical-storm alerts before departure.
🎉 Trip planning check
Guam 2026 events & busy periods
Check major events, holidays and periods that may affect crowds, transport or opening hours.
⚠️ Busy / closure periodJuly related
Liberation Day events
📅 Around Jul 21
Crowds and traffic controls can affect Hagåtña and parade routes, so allow extra time when driving.
Check official source →Event dates, holiday schedules and opening hours can change. Recheck the linked official tourism or government source before departure.
Guam in July · recent 3 years
Compare the most recent complete year with the two years before it. Daily high / low temperatures are shown in °F.
CalendarNo measurable rain🌧️ Rain⛈️ Thunderstorm❄️ SnowHigh / Low · °F
⭐ July 2025 · latest complete year☔ 30 days · 397.8 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
30.6°C/25.1°C
🌧️ 9.8 mm
2
32.5°C/25.2°C
🌧️ 7.6 mm
3
32.1°C/25.5°C
🌧️ 4.3 mm
4
33.2°C/25.5°C
No rain
5
32.3°C/26.1°C
🌧️ 2.6 mm
6
31.7°C/24.9°C
🌧️ 12.6 mm
7
30.1°C/24.3°C
🌧️ 15 mm
8
31.7°C/24.8°C
🌧️ 36.4 mm
9
31.2°C/25.1°C
🌧️ 21 mm
10
31.8°C/26°C
🌧️ 2.7 mm
11
30.9°C/25.4°C
🌧️ 3.7 mm
12
29.7°C/25.5°C
🌧️ 16.4 mm
13
31.8°C/24.8°C
🌧️ 9.8 mm
14
31.1°C/26.7°C
🌧️ 2.1 mm
15
32.4°C/26.1°C
🌧️ 2 mm
16
30.9°C/24.8°C
🌧️ 15.9 mm
17
32.1°C/25.5°C
🌧️ 13.3 mm
18
31.3°C/25.3°C
🌧️ 3.6 mm
19
31.4°C/24.9°C
🌧️ 21.8 mm
20
29.1°C/24.7°C
🌧️ 43.6 mm
21
32.4°C/25.5°C
🌧️ 8.7 mm
22
32.1°C/25.5°C
🌧️ 12.8 mm
23
30.6°C/25.1°C
🌧️ 27.3 mm
24
29.3°C/25.4°C
🌧️ 8.5 mm
25
28.8°C/24.5°C
🌧️ 13.8 mm
26
29.7°C/24.4°C
🌧️ 9.3 mm
27
29.3°C/26.6°C
🌧️ 3.9 mm
28
31.4°C/25.5°C
🌧️ 5.5 mm
29
31.6°C/25.5°C
🌧️ 10 mm
30
31.3°C/24.6°C
🌧️ 47.8 mm
31
31.7°C/24.4°C
🌧️ 5.4 mm
July 2024☔ 27 days · 354.7 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
29.7°C/24.8°C
🌧️ 4.4 mm
2
31.2°C/25.4°C
🌧️ 4.1 mm
3
31.2°C/25°C
🌧️ 2.4 mm
4
30.5°C/24.2°C
🌧️ 9 mm
5
31.5°C/26.3°C
No rain
6
31.8°C/25.5°C
🌧️ 1.2 mm
7
30.9°C/24.9°C
🌧️ 3.2 mm
8
31.4°C/25.6°C
No rain
9
32.1°C/26.5°C
No rain
10
29.1°C/26.1°C
🌧️ 16.8 mm
11
28.8°C/24.5°C
🌧️ 33.6 mm
12
30.6°C/26.1°C
🌧️ 1.4 mm
13
31°C/24°C
🌧️ 11.4 mm
14
30.9°C/25.6°C
🌧️ 8.2 mm
15
31.3°C/25.5°C
🌧️ 1.9 mm
16
29.6°C/25°C
🌧️ 14.9 mm
17
30.7°C/24.8°C
🌧️ 2.8 mm
18
28°C/24.4°C
🌧️ 30.5 mm
19
29.8°C/24.1°C
🌧️ 14.7 mm
20
30.8°C/24.7°C
🌧️ 6.7 mm
21
29.1°C/26.2°C
🌧️ 12.6 mm
22
29°C/25.2°C
🌧️ 27.1 mm
23
30.7°C/26.1°C
No rain
24
30.2°C/24.3°C
🌧️ 7.6 mm
25
27.9°C/24.6°C
🌧️ 29 mm
26
28.7°C/23.9°C
🌧️ 37.7 mm
27
31.2°C/24.2°C
🌧️ 7.3 mm
28
29.9°C/24.1°C
🌧️ 40.5 mm
29
31.4°C/23.9°C
🌧️ 12.6 mm
30
30.3°C/24°C
🌧️ 4.4 mm
31
30.3°C/25.1°C
🌧️ 6 mm
July 2023☔ 28 days · 313.3 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
30.8°C/26.1°C
🌧️ 1.2 mm
2
30.9°C/26.4°C
🌧️ 2.5 mm
3
31.1°C/24.6°C
🌧️ 1.8 mm
4
30.6°C/25.8°C
🌧️ 3 mm
5
30.9°C/24.1°C
🌧️ 1.5 mm
6
30.3°C/23.3°C
🌧️ 3.8 mm
7
30.6°C/25.1°C
🌧️ 21.4 mm
8
28.9°C/24.5°C
🌧️ 14.6 mm
9
29.7°C/24.1°C
🌧️ 24.2 mm
10
29.5°C/24.1°C
🌧️ 30 mm
11
29°C/25.1°C
🌧️ 27.5 mm
12
29.8°C/24.6°C
🌧️ 19.1 mm
13
27.9°C/24.5°C
🌧️ 21.6 mm
14
30.4°C/25.8°C
🌧️ 1.7 mm
15
30.2°C/25°C
🌧️ 8.1 mm
16
30.2°C/25.2°C
🌧️ 5.5 mm
17
29.5°C/23.4°C
🌧️ 23.1 mm
18
30.9°C/25.2°C
No rain
19
30.2°C/26.3°C
No rain
20
30.5°C/24.8°C
No rain
21
30.8°C/25.5°C
🌧️ 5.7 mm
22
30.8°C/24.3°C
🌧️ 7.5 mm
23
30.8°C/24.5°C
🌧️ 5.5 mm
24
28.5°C/25°C
🌧️ 31.2 mm
25
30.4°C/24.7°C
🌧️ 5.9 mm
26
28.9°C/24.5°C
🌧️ 13.4 mm
27
28.5°C/24.5°C
🌧️ 10.5 mm
28
28.8°C/25.1°C
🌧️ 7.5 mm
29
31.1°C/24.9°C
🌧️ 1.3 mm
30
31°C/24.7°C
🌧️ 9.9 mm
31
30.5°C/25.3°C
🌧️ 3 mm
Historical calendars use Open-Meteo reanalysis data. A rainy day is counted when daily precipitation is at least 1 mm. Conditions at a specific hotel, beach or station can differ.
✈️ Traveling soon?
Current Guam weather and 7-day forecast
When departure is close, the latest forecast matters more than long-term averages.
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Forecast data: MET Norway · CC BY 4.0 · cached by Travel Weather Fairy
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Guam weather in other months
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