March is one of the cooler months of the year in Hagatna, with average highs near 27.6°C and lows around 26.7°C (mean 27.2°C). It is one of the drier months, averaging 36 mm of rainfall and 78% relative humidity across the period.
March is one of the cooler months of the year in Hagatna. Across 45 years of records, the warmest Marchs in Hagatna were 2022 and 2025 — when the month averaged 27.9°C — while the coldest was 1983 at 25.7°C. Typical March days reach 27.6°C with nights near 26.7°C. The long-term trend is warming, about 0.3°C per decade.
March is one of the drier months in Hagatna, averaging 36 mm of rainfall. The wettest March on record was 2015 with 117 mm, while the driest was 1987 at 2 mm.
Relative humidity in Hagatna during March averages 78%. The most humid March was 1986 at 81%, and the least humid was 1998 at 70%.
March receives about 6.2 kWh/m²/day of solar energy in Hagatna. The sunniest March was 2021 at 6.7 kWh/m²/day, and the cloudiest was 2007 at 5.5.
Average wind speed in Hagatna during March is 6.3 m/s. The windiest March was 1985 at 7.4 m/s, while the calmest was 1989 at 4.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.8°C | 26.7°C | 27.3°C | 27.4°C | 27.6°C | +0.8°C |
| Avg High | 27.2°C | 27.1°C | 27.8°C | 27.8°C | 28.1°C | +0.9°C |
| Avg Low | 26.4°C | 26.3°C | 26.9°C | 26.9°C | 27.2°C | +0.8°C |
| Avg Rain | 36 mm | 25 mm | 35 mm | 51 mm | 33 mm | -4 mm |
March temperatures in Hagatna have risen by about 1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 24.4°C (1983) to a record high of 29°C (1999).
Rainfall in March is one of the drier months, averaging 36 mm, with a wettest year of 117 mm.
One of the best times to visit Hagatna
March is one of the best times to visit Hagatna. Expect days averaging 27.6°C and nights around 26.7°C (mean 27.2°C) — close to Hagatna's yearly average — with moderate rainfall (36 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 28.4°C | 27.9°C | 27.4°C | 28.9°C | 26.8°C | 49 mm | 79% | 6.1 m/s | 6.5 |
| 2024 | 27.9°C | 27.4°C | 26.9°C | 28.5°C | 26.0°C | 27 mm | 78% | 6 m/s | 6.5 |
| 2023 | 28.1°C | 27.7°C | 27.2°C | 28.7°C | 26.6°C | 51 mm | 80% | 5.3 m/s | 6.2 |
| 2022 🔥 | 28.3°C | 27.9°C | 27.4°C | 28.9°C | 26.6°C | 27 mm | 79% | 5.9 m/s | 6.5 |
| 2021 | 28.2°C | 27.8°C | 27.3°C | 28.7°C | 26.7°C | 23 mm | 78% | 5.7 m/s | 6.7 |
| 2020 | 27.6°C | 27.1°C | 26.7°C | 28.0°C | 25.5°C | 18 mm | 79% | 6.1 m/s | 6.6 |
| 2019 | 27.6°C | 27.2°C | 26.7°C | 28.1°C | 26.1°C | 23 mm | 78% | 6 m/s | 6.6 |
| 2018 | 28.0°C | 27.5°C | 27.1°C | 28.9°C | 25.5°C | 25 mm | 77% | 6.1 m/s | 6.5 |
| 2017 | 28.2°C | 27.8°C | 27.3°C | 28.7°C | 26.7°C | 90 mm | 78% | 5.1 m/s | 5.9 |
| 2016 | 27.4°C | 26.9°C | 26.4°C | 28.2°C | 25.7°C | 18 mm | 77% | 4.8 m/s | 6.6 |
| 2015 🌧️ | 27.6°C | 27.1°C | 26.7°C | 28.3°C | 25.7°C | 117 mm | 79% | 6.1 m/s | 5.9 |
| 2014 | 27.8°C | 27.4°C | 27.0°C | 28.4°C | 26.0°C | 73 mm | 79% | 6.5 m/s | 6.2 |
| 2013 | 27.9°C | 27.5°C | 27.1°C | 28.7°C | 26.3°C | 49 mm | 79% | 6.3 m/s | 6.1 |
| 2012 | 27.9°C | 27.4°C | 27.0°C | 28.4°C | 26.1°C | 29 mm | 78% | 7.2 m/s | 6.2 |
| 2011 | 28.0°C | 27.6°C | 27.2°C | 28.4°C | 26.3°C | 58 mm | 81% | 6.1 m/s | 6.1 |
| 2010 | 27.5°C | 27.1°C | 26.7°C | 27.9°C | 26.1°C | 34 mm | 79% | 7.1 m/s | 6.3 |
| 2009 | 27.6°C | 27.1°C | 26.7°C | 28.3°C | 25.7°C | 32 mm | 77% | 5.7 m/s | 6.2 |
| 2008 | 27.9°C | 27.4°C | 26.9°C | 28.3°C | 26.2°C | 28 mm | 77% | 5.4 m/s | 6.6 |
| 2007 | 27.3°C | 26.9°C | 26.4°C | 28.1°C | 25.5°C | 46 mm | 78% | 6.8 m/s | 5.5 |
| 2006 | 27.8°C | 27.4°C | 27.0°C | 28.8°C | 26.4°C | 23 mm | 74% | 6.3 m/s | 6.3 |
| 2005 | 27.8°C | 27.4°C | 27.1°C | 28.8°C | 26.5°C | 60 mm | 77% | 6.7 m/s | 6.1 |
| 2004 | 28.1°C | 27.7°C | 27.3°C | 28.8°C | 26.6°C | 31 mm | 78% | 6.3 m/s | 6.3 |
| 2003 | 27.6°C | 27.1°C | 26.7°C | 28.6°C | 25.6°C | 40 mm | 77% | 5.6 m/s | 6.3 |
| 2002 | 27.9°C | 27.5°C | 27.1°C | 28.5°C | 26.3°C | 37 mm | 77% | 6.8 m/s | 6.2 |
| 2001 | 27.7°C | 27.2°C | 26.8°C | 28.0°C | 26.2°C | 23 mm | 76% | 5.9 m/s | 6.4 |
| 2000 | 28.1°C | 27.7°C | 27.3°C | 28.6°C | 26.4°C | 32 mm | 77% | 6.6 m/s | 6.1 |
| 1999 | 28.3°C | 27.8°C | 27.4°C | 29.0°C | 26.5°C | 14 mm | 76% | 5.8 m/s | 6.5 |
| 1998 | 27.2°C | 26.7°C | 26.1°C | 28.0°C | 25.2°C | 16 mm | 70% | 5.6 m/s | 6.3 |
| 1997 | 27.2°C | 26.8°C | 26.3°C | 28.1°C | 25.5°C | 23 mm | 75% | 6.9 m/s | 6 |
| 1996 | 27.5°C | 27.1°C | 26.7°C | 28.1°C | 25.5°C | 19 mm | 78% | 7.2 m/s | 6.2 |
| 1995 | 26.7°C | 26.2°C | 25.8°C | 27.3°C | 25.0°C | 16 mm | 75% | 6.7 m/s | 6.1 |
| 1994 | 27.6°C | 27.3°C | 26.9°C | 28.1°C | 26.1°C | 95 mm | 80% | 6.6 m/s | 5.7 |
| 1993 | 26.6°C | 26.1°C | 25.7°C | 27.2°C | 25.0°C | 12 mm | 78% | 6.4 m/s | 6.2 |
| 1992 | 26.8°C | 26.4°C | 26.0°C | 27.2°C | 25.4°C | 9 mm | 74% | 7.3 m/s | 6.3 |
| 1991 | 26.8°C | 26.4°C | 26.0°C | 27.3°C | 25.5°C | 20 mm | 78% | 7.1 m/s | 6.1 |
| 1990 | 26.8°C | 26.4°C | 26.0°C | 27.6°C | 25.1°C | 22 mm | 78% | 6.7 m/s | 6.1 |
| 1989 | 27.6°C | 27.0°C | 26.5°C | 28.7°C | 25.3°C | 11 mm | 76% | 4.4 m/s | 6.3 |
| 1988 | 27.4°C | 27.0°C | 26.6°C | 27.9°C | 26.2°C | 9 mm | 79% | 6.9 m/s | 6.2 |
| 1987 | 27.1°C | 26.7°C | 26.3°C | 27.6°C | 25.3°C | 2 mm | 79% | 6.5 m/s | 6.1 |
| 1986 | 27.2°C | 26.9°C | 26.6°C | 27.9°C | 25.6°C | 84 mm | 81% | 6.7 m/s | 5.6 |
| 1985 | 27.1°C | 26.8°C | 26.4°C | 27.8°C | 25.6°C | 56 mm | 80% | 7.4 m/s | 6.2 |
| 1984 | 27.4°C | 27.0°C | 26.6°C | 28.5°C | 25.9°C | 58 mm | 79% | 6.2 m/s | 6 |
| 1983 ❄️ | 26.2°C | 25.7°C | 25.2°C | 26.9°C | 24.4°C | 47 mm | 79% | 5.6 m/s | — |
| 1982 | 27.0°C | 26.7°C | 26.3°C | 27.4°C | 25.5°C | 30 mm | 79% | 6.7 m/s | — |
| 1981 | 27.5°C | 27.1°C | 26.7°C | 28.0°C | 25.1°C | 31 mm | 79% | 6.6 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 27.6°C with lows near 26.7°C (mean 27.2°C), based on 45 years of NASA POWER data.
March averages 36 mm of rainfall in Hagatna, one of the drier months. The wettest on record was 117 mm in 2015.
The hottest March reached 29°C in 1999. The coldest dipped to 24.4°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1°C. Daytime highs moved from 27°C to 28.2°C and overnight lows from 26.2°C to 27.2°C over the same span.
March is one of the cooler months of the year in Hagatna and one of the drier months, so plan for around 27.6°C daytime highs and 26.7°C at night.
Not quite — March is the 2nd coolest month in Hagatna, averaging 27.2°C.
For March in Hagatna, pack light layers you can adjust through the day, with typical highs of 27.6°C and lows of 26.7°C.
Relative humidity in March averages 78% — quite humid.
Average wind speed in March is 6.3 m/s. The windiest March on record averaged 7.4 m/s (1985).
The wettest March on record was 2015 with 117 mm. On average, March sees 36 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Hagatna behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
