When to go · Guam
Guam, month by month
The best months for Guam: Jan, Feb, Mar, Apr.
Month by month
- JanuaryGreatDry and breezy; Japanese and Korean winter holidays keep Tumon busy.Guam: best weather · Tumon: 30 °C (86 °F) / 24 °C (75 °F), 15 rain days · Dededo: 30 °C (86 °F) / 24 °C (75 °F), 5 rain daysGuam: best weather · Tumon: 86 °F (30 °C) / 75 °F (24 °C), 15 rain days · Dededo: 86 °F (30 °C) / 75 °F (24 °C), 5 rain daysCrowds: High · 4 festivals or holidays
- FebruaryGreatDry season; Lunar New Year surge from Korea and Taiwan.Guam: best weather · Tumon: 30 °C (86 °F) / 24 °C (75 °F), 12 rain days · Dededo: 30 °C (86 °F) / 24 °C (75 °F), 5 rain daysGuam: best weather · Tumon: 86 °F (30 °C) / 75 °F (24 °C), 12 rain days · Dededo: 86 °F (30 °C) / 75 °F (24 °C), 5 rain daysCrowds: High · 2 festivals or holidays
- MarchGreatDriest stretch and CHamoru Month events; a good all-round pick.Guam: best weather · Tumon: 30 °C (86 °F) / 24 °C (75 °F), 12 rain days · Dededo: 31 °C (88 °F) / 25 °C (77 °F), 5 rain daysGuam: best weather · Tumon: 86 °F (30 °C) / 75 °F (24 °C), 12 rain days · Dededo: 88 °F (31 °C) / 77 °F (25 °C), 5 rain daysCrowds: Medium · 4 festivals or holidays
- AprilGreatDry and hotter; Golden Week crowds arrive at month's end.Guam: best weather · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 12 rain days · Dededo: 32 °C (90 °F) / 26 °C (79 °F), 5 rain daysGuam: best weather · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 12 rain days · Dededo: 90 °F (32 °C) / 79 °F (26 °C), 5 rain daysCrowds: Medium · 3 festivals or holidays
- MayGoodHottest and still mostly dry; Golden Week early in the month. Mawar hit in May 2023, so check forecasts.Guam: hot · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 14 rain days · Dededo: 32 °C (90 °F) / 26 °C (79 °F), 5 rain daysGuam: hot · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 14 rain days · Dededo: 90 °F (32 °C) / 79 °F (26 °C), 5 rain daysCrowds: High · 2 festivals or holidays
- JuneGoodHumidity rises and showers start; quieter hotels.Guam: fine · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 16 rain days · Dededo: 33 °C (91 °F) / 27 °C (81 °F), 6 rain daysGuam: fine · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 16 rain days · Dededo: 91 °F (33 °C) / 81 °F (27 °C), 6 rain daysCrowds: Medium · 1 festival or holiday
- JulyMixedRainy season begins; Liberation Day festivities; typhoon watch starts.Guam: rainy · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 22 rain days · Dededo: 33 °C (91 °F) / 27 °C (81 °F), 7 rain daysGuam: rainy · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 22 rain days · Dededo: 91 °F (33 °C) / 81 °F (27 °C), 7 rain daysCrowds: Medium · 3 festivals or holidays
- AugustMixedWettest weeks and peak storm risk, yet Asian summer holidays fill hotels.Guam: storm or typhoon risk · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 24 rain days · Dededo: 33 °C (91 °F) / 27 °C (81 °F), 7 rain daysGuam: storm or typhoon risk · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 24 rain days · Dededo: 91 °F (33 °C) / 81 °F (27 °C), 7 rain daysCrowds: High · 3 festivals or holidays
- SeptemberMixedHeavy showers and typhoon risk; low prices outside Chuseok.Guam: storm or typhoon risk · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 23 rain days · Dededo: 32 °C (90 °F) / 26 °C (79 °F), 7 rain daysGuam: storm or typhoon risk · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 23 rain days · Dededo: 90 °F (32 °C) / 79 °F (26 °C), 7 rain daysCrowds: Low · 3 festivals or holidays
- OctoberMixedStill stormy; seas rough on exposed coasts. Keep a spare day.Guam: storm or typhoon risk · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 22 rain days · Dededo: 31 °C (88 °F) / 25 °C (77 °F), 6 rain daysGuam: storm or typhoon risk · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 22 rain days · Dededo: 88 °F (31 °C) / 77 °F (25 °C), 6 rain daysCrowds: Low · 4 festivals or holidays
- NovemberMixedRains ease late in the month; late-season typhoons still possible.Guam: rainy · Tumon: 31 °C (88 °F) / 25 °C (77 °F), 19 rain days · Dededo: 30 °C (86 °F) / 24 °C (75 °F), 5 rain daysGuam: rainy · Tumon: 88 °F (31 °C) / 77 °F (25 °C), 19 rain days · Dededo: 86 °F (30 °C) / 75 °F (24 °C), 5 rain daysCrowds: Low · 4 festivals or holidays
- DecemberGoodTrade winds return; Christmas and New Year prices.Guam: fine · Tumon: 30 °C (86 °F) / 24 °C (75 °F), 17 rain days · Dededo: 30 °C (86 °F) / 24 °C (75 °F), 5 rain daysGuam: fine · Tumon: 86 °F (30 °C) / 75 °F (24 °C), 17 rain days · Dededo: 86 °F (30 °C) / 75 °F (24 °C), 5 rain daysCrowds: High · 3 festivals or holidays
Compare two months
Weather, crowds and prices for any two months in Guam, side by side.
Verdict
Jan: Great
Feb: Great
Crowds
Jan: High
Feb: High
Prices
Jan: High
Feb: High
Festivals listed
Jan: 4
Feb: 2
January: Dry and breezy; Japanese and Korean winter holidays keep Tumon busy.
February: Dry season; Lunar New Year surge from Korea and Taiwan.
Guam: figures are long-term averages from this guide, not a forecast.
Weather by region
How each climate zone rates each month.