Travel Weather Fairy🎊 Featured eventMarch related
CHamoru Month
📅 March
A month celebrating Guam’s CHamoru culture and traditions, with a good chance to experience local cultural events.
Check official source →🇬🇺 Guam, U.S.
Guam Weather in March
Dry seasonFor Guam, March typically brings hot daytime weather and mild to warm nights: the 10-year average high is about 30°C (85°F), while the average low is 25°C (76°F). The 10-year average shows around 16 rainy days and about 75 mm of monthly precipitation, so rain is fairly common.
Avg high85.2°F 29.6°CAvg low76.4°F 24.7°CRainy days~16.3 daysMonthly rain75.1 mm
🧳 Packing guide
What to wear in Guam in March
Packing for Guam in March 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 be a practical time to visit when your packing matches the daytime-to-evening temperature change.
🗓️ 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 period
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 March · 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
⭐ March 2025 · latest complete year☔ 18 days · 65.4 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
28.9°C/23.1°C
🌧️ 7.9 mm
2
28.9°C/24°C
🌧️ 9.3 mm
3
30.6°C/26°C
🌧️ 1 mm
4
30.8°C/22.9°C
🌧️ 5.9 mm
5
31.6°C/23.6°C
🌧️ 7.9 mm
6
31.9°C/25.7°C
No rain
7
31.5°C/25.4°C
No rain
8
31.5°C/25.3°C
No rain
9
31.5°C/25.7°C
🌧️ 1.7 mm
10
32.1°C/25.6°C
No rain
11
31.2°C/25.7°C
🌧️ 1.3 mm
12
31.9°C/25.9°C
No rain
13
31.4°C/25.9°C
No rain
14
31°C/24.8°C
🌧️ 2.5 mm
15
30.9°C/26°C
🌧️ 2.3 mm
16
31.7°C/26.5°C
No rain
17
30.6°C/25.5°C
🌧️ 6.5 mm
18
32°C/25.6°C
🌧️ 2.6 mm
19
31.4°C/25.1°C
🌧️ 3 mm
20
31.9°C/25.7°C
🌧️ 1 mm
21
32.1°C/25.5°C
No rain
22
31°C/26.1°C
🌧️ 1 mm
23
31.2°C/25.7°C
🌧️ 2.1 mm
24
31.3°C/26.3°C
No rain
25
30.3°C/25.3°C
🌧️ 1.3 mm
26
32.1°C/25.6°C
No rain
27
32.4°C/25.2°C
No rain
28
31.9°C/25.9°C
No rain
29
30.7°C/25.5°C
🌧️ 1.3 mm
30
31.6°C/24.9°C
🌧️ 1.6 mm
31
31.8°C/25.3°C
No rain
March 2024☔ 14 days · 42.5 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
29.5°C/24°C
No rain
2
30.4°C/24.4°C
No rain
3
30.2°C/22.5°C
No rain
4
30.6°C/24.3°C
No rain
5
30°C/24.3°C
🌧️ 1.1 mm
6
30.4°C/24.8°C
No rain
7
30.9°C/24.6°C
No rain
8
30.7°C/24.5°C
No rain
9
31°C/24.2°C
No rain
10
30.4°C/24.1°C
🌧️ 3.1 mm
11
30.4°C/25.1°C
No rain
12
30.3°C/25°C
No rain
13
29.7°C/24.6°C
🌧️ 2.6 mm
14
29.2°C/24.9°C
🌧️ 2.1 mm
15
29.6°C/24.8°C
🌧️ 1.6 mm
16
29.5°C/24.6°C
🌧️ 1.7 mm
17
30.4°C/24°C
No rain
18
29.1°C/24.7°C
🌧️ 5.2 mm
19
30.4°C/23.9°C
No rain
20
30.3°C/23°C
No rain
21
30.9°C/23.6°C
No rain
22
30.8°C/24.7°C
No rain
23
30.7°C/24.5°C
🌧️ 2.4 mm
24
29.5°C/24.9°C
🌧️ 4.4 mm
25
29.9°C/25.3°C
🌧️ 6.1 mm
26
29.8°C/25.6°C
🌧️ 1.8 mm
27
31.5°C/25.2°C
No rain
28
29.9°C/24.5°C
🌧️ 2.7 mm
29
30.5°C/25.7°C
🌧️ 1.1 mm
30
30.5°C/25.4°C
🌧️ 2 mm
31
30.4°C/25.4°C
No rain
March 2023☔ 24 days · 173.4 mm
Sun
Mon
Tue
Wed
Thu
Fri
Sat
1
27.5°C/24.1°C
🌧️ 5.2 mm
2
28.9°C/24°C
🌧️ 1.7 mm
3
29.3°C/23.8°C
🌧️ 2.9 mm
4
28.1°C/23.5°C
🌧️ 2.1 mm
5
28.1°C/24.8°C
🌧️ 2.2 mm
6
28.5°C/23.7°C
🌧️ 4.7 mm
7
30.3°C/24.9°C
No rain
8
29.5°C/22.6°C
🌧️ 3.8 mm
9
29.5°C/22.3°C
🌧️ 9 mm
10
30.1°C/24.8°C
No rain
11
29.9°C/25°C
🌧️ 2.1 mm
12
28.8°C/24.4°C
🌧️ 4.9 mm
13
33°C/24°C
🌧️ 12.1 mm
14
29.9°C/24.4°C
No rain
15
29.5°C/23.9°C
🌧️ 2.9 mm
16
30.1°C/25°C
No rain
17
29°C/23.5°C
No rain
18
29°C/24.9°C
No rain
19
29.6°C/25.1°C
🌧️ 1.9 mm
20
29.1°C/23.4°C
🌧️ 3 mm
21
29.7°C/23°C
🌧️ 7 mm
22
29.3°C/23.6°C
🌧️ 3.7 mm
23
30.4°C/24.4°C
No rain
24
29.3°C/25.3°C
🌧️ 3.1 mm
25
28.9°C/24.4°C
🌧️ 2.7 mm
26
28.7°C/24°C
🌧️ 2.5 mm
27
27.9°C/23.1°C
🌧️ 30.4 mm
28
28.3°C/23.7°C
🌧️ 35.9 mm
29
28.7°C/22.1°C
🌧️ 16.2 mm
30
29.3°C/23.2°C
🌧️ 3.7 mm
31
30.1°C/23.2°C
🌧️ 7.3 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
Switch months to compare the seasonal pattern.