Agat Weather in April (1981–2025)

📍 13.36°N, 144.66°E •
📊

April at a Glance in Agat

(1981–2025)
Avg High
🔥
28.3°C
Avg Low
❄️
27.3°C
Avg Temp
🌡️
27.8°C
Avg Rain
🌧️
46 mm
Avg Humidity
💧
78%
Avg Wind
🌬️
5.7 m/s
Avg Solar
☀️
6.7
kWh/m²/day
vs Annual
📈
-0.2°C
temp difference
🌡️Warm afternoons🌙Warm mornings☀️Very sunny🌦️Some rain💨Breezy💦Humid air

Agat April Weather Overview

April is close to Agat's year-round average, with average highs near 28.3°C and lows around 27.3°C (mean 27.8°C). It is one of the drier months, averaging 46 mm of rainfall and 78% relative humidity across the period.

Agat April Temperature History (1981–2025)

Range

April is close to Agat's year-round average. Across 45 years of records, the warmest April in Agat was 2021 — when the month averaged 28.7°C — while the coldest was 1983 at 26.6°C. Typical April days reach 28.3°C with nights near 27.3°C. The long-term trend is warming, about 0.3°C per decade.

1981–1985 vs 2021–2025

Avg Temp27.3°C→28.4°C+1.1°C
Max Temp27.8°C→28.9°C+1.1°C
Min Temp26.8°C→27.9°C+1.1°C

Trend (per decade)

Avg Temp+0.3°C/decade ↗
Max Temp+0.3°C/decade ↗
Min Temp+0.2°C/decade ↗

Distribution of Avg Temp

26.0°C–26.8°C1 yr (2%)
26.8°C–27.5°C8 yr (18%)
27.5°C–28.3°C30 yr (67%)
28.3°C–29.0°C6 yr (13%)

Agat April Rainfall History (1981–2025)

Range

April is one of the drier months in Agat, averaging 46 mm of rainfall. The wettest April on record was 2022 with 157 mm, while the driest was 1992 at 3 mm.

Agat April Humidity History (1981–2025)

Range

Relative humidity in Agat during April averages 78%. The most humid April was 2022 at 82%, and the least humid were 1993 and 1998 at 75%.

Agat April Solar History (1981–2025)

Range

April receives about 6.7 kWh/m²/day of solar energy in Agat. The sunniest April was 1998 at 7.2 kWh/m²/day, and the cloudiest was 2022 at 5.9.

Agat April Wind History (1981–2025)

Range

Average wind speed in Agat during April is 5.7 m/s. The windiest April was 1995 at 6.7 m/s, while the calmest was 2021 at 3.4 m/s.

What April Feels Like in Agat

🌅
Warm
Morning
🌞
Warm
Afternoon
🌆
Warm
Evening
Rain chanceModerate
Outdoor comfort★★★★★

How April Ranks in Agat

🥶4th coolest month of the year
🌵2nd driest month of the year
☀️1st sunniest month of the year

Ranked against the other 11 months using 1981–2025 averages.

Explore Agat Weather by Month

Agat April Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp27.4°C27.5°C28.0°C28.0°C28.3°C+0.9°C
Avg High27.8°C27.9°C28.4°C28.5°C28.8°C+1°C
Avg Low26.9°C27.0°C27.5°C27.5°C27.9°C+1°C
Avg Rain39 mm40 mm40 mm56 mm58 mm+20 mm

Extreme April Records in Agat

🔥Warmest April29.8°C2021
🧊Coldest April25.3°C1983
🌧️Wettest April157 mm2022
🏜️Driest April3 mm1992
🌬️Windiest April6.7 m/s1995

Key Insights for April

✅

April temperatures in Agat have risen by about 1.1°C between 1981–1985 and 2021–2025.

✅

April has ranged from a record low of 25.3°C (1983) to a record high of 29.8°C (2021).

✅

Rainfall in April is one of the drier months, averaging 46 mm, with a wettest year of 157 mm.

Is April a Good Time to Visit Agat?

One of the best times to visit Agat

April is one of the best times to visit Agat. Expect days averaging 28.3°C and nights around 27.3°C (mean 27.8°C) — close to Agat's yearly average — with moderate rainfall (46 mm), so conditions are generally comfortable for sightseeing and outdoor plans.

See Agat's complete weather history All 12 months side by side, 1981–2025 records, annual trends and long-term averages in one place. View full history →

Agat Weather in April — In Depth

☀️ April climate overview

April is close to Agat's year-round average, with average highs near 28.3°C and lows around 27.3°C (mean 27.8°C). It is one of the drier months, averaging 46 mm of rainfall and 78% relative humidity across the period.

🌧️ Rain, humidity & wind in April

April averages 46 mm of rainfall in Agat, one of the drier months compared with the rest of the year. The wettest April on record saw 157 mm (2022), and the driest just 3 mm (1992). Humidity sits around 78% and average wind speed is 5.7 m/s, with solar radiation averaging 6.7 kWh/m²/day.

📈 How April has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.1°C. Daytime highs moved from 27.8°C to 28.9°C and overnight lows from 26.8°C to 27.9°C over the same span.
April Weather in Agat, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202529.2°C28.6°C28.1°C29.6°C27.1°C13 mm77%5.1 m/s7.1
202428.8°C28.3°C27.8°C29.5°C27.0°C26 mm79%5.8 m/s6.9
202328.6°C28.2°C27.8°C29.1°C26.9°C88 mm80%6 m/s6.3
2022 🌧️28.5°C28.1°C27.7°C29.0°C26.8°C157 mm82%6.3 m/s5.9
2021 🔥29.2°C28.7°C28.2°C29.8°C27.4°C44 mm76%3.4 m/s6.7
202028.5°C28.0°C27.5°C29.1°C26.8°C20 mm78%5.7 m/s7
201928.3°C27.8°C27.3°C28.8°C26.7°C29 mm78%5.4 m/s6.9
201828.5°C28.0°C27.5°C29.0°C26.8°C86 mm81%5.9 m/s6.6
201728.6°C28.1°C27.6°C29.3°C26.6°C112 mm80%5.3 m/s6.6
201628.3°C27.8°C27.2°C29.0°C26.6°C13 mm77%5.9 m/s7.1
201528.4°C27.9°C27.5°C29.0°C26.9°C61 mm81%6.1 m/s6.6
201428.9°C28.4°C27.9°C29.4°C27.1°C67 mm79%4.6 m/s6.6
201328.7°C28.1°C27.5°C29.2°C26.7°C20 mm77%4.8 m/s6.9
201228.6°C28.1°C27.6°C29.1°C27.1°C23 mm78%5.1 m/s7.1
201128.6°C28.3°C27.9°C29.7°C26.9°C123 mm81%5.5 m/s6.2
201028.1°C27.6°C27.1°C28.6°C26.3°C29 mm78%6.3 m/s7
200928.4°C28.0°C27.5°C28.8°C26.9°C54 mm78%6 m/s6.8
200828.8°C28.3°C27.9°C29.1°C27.1°C27 mm78%5.6 m/s7
200728.3°C27.9°C27.4°C28.9°C26.2°C39 mm78%5.8 m/s6.8
200628.3°C27.8°C27.3°C29.0°C26.5°C19 mm76%5.3 m/s6.8
200528.2°C27.8°C27.3°C28.8°C26.9°C44 mm77%6.5 m/s6.4
200428.5°C28.1°C27.7°C29.0°C26.8°C49 mm80%5.9 m/s6.3
200328.3°C27.9°C27.5°C28.9°C26.6°C114 mm80%6.1 m/s6.4
200228.3°C27.8°C27.3°C28.9°C26.2°C28 mm77%5.4 m/s6.9
200128.7°C28.2°C27.6°C29.2°C26.3°C15 mm76%5.7 m/s7.1
200028.6°C28.1°C27.6°C29.0°C27.0°C16 mm75%5.4 m/s7
199928.5°C28.0°C27.6°C29.3°C27.0°C100 mm76%5.9 m/s6.5
199828.1°C27.6°C27.1°C28.6°C26.6°C12 mm75%6.1 m/s7.2
199727.9°C27.5°C27.1°C28.6°C26.2°C101 mm79%6.4 m/s6.2
199628.1°C27.6°C27.2°C28.8°C26.2°C92 mm81%5.3 m/s6.3
199528.0°C27.5°C27.0°C28.6°C26.3°C14 mm76%6.7 m/s6.7
199428.3°C27.9°C27.5°C28.9°C26.7°C23 mm80%5.7 m/s6.7
199327.6°C27.1°C26.6°C28.2°C25.9°C4 mm75%6.4 m/s7
199227.4°C26.9°C26.4°C27.8°C25.8°C3 mm76%5.2 m/s6.9
199127.8°C27.3°C26.9°C28.6°C26.3°C37 mm80%6.4 m/s6.6
199027.7°C27.3°C26.8°C28.7°C25.7°C9 mm79%5.5 m/s6.7
198928.2°C27.7°C27.3°C28.9°C26.4°C56 mm80%6.5 m/s6.3
198828.1°C27.7°C27.2°C29.0°C26.4°C13 mm77%5.4 m/s6.8
198727.5°C27.0°C26.5°C28.0°C25.8°C5 mm79%6.2 m/s6.8
198627.8°C27.4°C27.0°C28.4°C26.0°C63 mm80%6.3 m/s6.2
198527.6°C27.1°C26.7°C28.1°C26.0°C80 mm81%5.3 m/s6.4
198428.2°C27.7°C27.2°C29.3°C26.5°C21 mm79%4.8 m/s6.9
1983 ❄️27.1°C26.6°C26.1°C27.6°C25.3°C14 mm78%5.5 m/s—
198227.6°C27.1°C26.6°C28.7°C25.5°C16 mm80%5.4 m/s—
198128.4°C28.0°C27.6°C28.8°C27.1°C79 mm80%6.2 m/s—

Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.

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Agat April Weather — FAQ

What is the average temperature in Agat in April?▼

The average high in April is around 28.3°C with lows near 27.3°C (mean 27.8°C), based on 45 years of NASA POWER data.

Does it rain a lot in Agat in April?▼

April averages 46 mm of rainfall in Agat, one of the drier months. The wettest on record was 157 mm in 2022.

What was the hottest April on record in Agat?▼

The hottest April reached 29.8°C in 2021. The coldest dipped to 25.3°C in 1983.

Has April in Agat gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.1°C. Daytime highs moved from 27.8°C to 28.9°C and overnight lows from 26.8°C to 27.9°C over the same span.

Is April a good time to visit Agat?▼

April is close to Agat's year-round average and one of the drier months, so plan for around 28.3°C daytime highs and 27.3°C at night.

Is April the coldest month in Agat?▼

Not quite — April is the 4th coolest month in Agat, averaging 27.8°C.

What should I pack for Agat in April?▼

For April in Agat, pack light layers you can adjust through the day, with typical highs of 28.3°C and lows of 27.3°C.

Is Agat humid in April?▼

Relative humidity in April averages 78% — quite humid.

How windy is Agat in April?▼

Average wind speed in April is 5.7 m/s. The windiest April on record averaged 6.7 m/s (1995).

Which April had the most rainfall in Agat?▼

The wettest April on record was 2022 with 157 mm. On average, April sees 46 mm.

Where does this April weather data come from?▼

All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.

Other Guam cities

Explore how the weather in Agat behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.