March is one of the warmer months of the year in Karratha, with average highs near 32.1°C and lows around 28°C (mean 30.1°C). It is a relatively wet time of year, averaging 50 mm of rainfall and 69% relative humidity across the period.
March is one of the warmer months of the year in Karratha. Across 45 years of records, the warmest March in Karratha was 2025 — when the month averaged 32.1°C — while the coldest was 2012 at 28.6°C. Typical March days reach 32.1°C with nights near 28°C. The long-term trend is warming, about 0.2°C per decade.
March is a relatively wet time of year in Karratha, averaging 50 mm of rainfall. The wettest March on record was 2000 with 243 mm, while the driest was 1993 at 0 mm.
Relative humidity in Karratha during March averages 69%. The most humid March was 2000 at 80%, and the least humid was 1993 at 63%.
March receives about 6.4 kWh/m²/day of solar energy in Karratha. The sunniest Marchs were 2001, 2009 and 2013 at 7 kWh/m²/day, and the cloudiest was 2012 at 5.4.
Average wind speed in Karratha during March is 4.3 m/s. The windiest Marchs were 2012 and 2019 at 5.4 m/s, while the calmest was 1981 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.9°C | 30.0°C | 29.7°C | 30.1°C | 30.6°C | +0.7°C |
| Avg High | 32.0°C | 32.3°C | 31.7°C | 32.0°C | 32.4°C | +0.4°C |
| Avg Low | 27.8°C | 27.8°C | 27.7°C | 28.3°C | 28.8°C | +1°C |
| Avg Rain | 35 mm | 31 mm | 88 mm | 55 mm | 35 mm | +0 mm |
March temperatures in Karratha have risen by about 1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 22.3°C (2004) to a record high of 39.6°C (2019).
Rainfall in March is a relatively wet time of year, averaging 50 mm, with a wettest year of 243 mm.
A quieter season to visit Karratha
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Karratha. That said, March — with days averaging 32.1°C and nights around 28°C (mean 30.1°C) and moderate rainfall (50 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 33.9°C | 32.1°C | 30.3°C | 39.0°C | 28.2°C | 20 mm | 66% | 3.9 m/s | 6.5 |
| 2024 | 31.8°C | 30.0°C | 28.3°C | 33.9°C | 27.4°C | 35 mm | 70% | 4.6 m/s | 6.5 |
| 2023 | 32.0°C | 30.4°C | 28.7°C | 34.9°C | 26.8°C | 63 mm | 72% | 3.8 m/s | 6.2 |
| 2022 | 33.2°C | 31.3°C | 29.5°C | 36.5°C | 27.8°C | 20 mm | 66% | 4 m/s | 6.1 |
| 2021 | 30.9°C | 29.2°C | 27.6°C | 33.8°C | 25.1°C | 24 mm | 69% | 4.5 m/s | 6.6 |
| 2020 | 32.7°C | 30.6°C | 28.6°C | 36.3°C | 27.6°C | 50 mm | 70% | 3.9 m/s | 6.6 |
| 2019 | 32.5°C | 30.7°C | 29.0°C | 39.6°C | 26.7°C | 168 mm | 72% | 5.4 m/s | 5.9 |
| 2018 | 33.1°C | 31.0°C | 29.0°C | 37.5°C | 27.6°C | 14 mm | 68% | 4 m/s | 6.9 |
| 2017 | 31.7°C | 30.1°C | 28.5°C | 37.0°C | 27.1°C | 94 mm | 72% | 3.9 m/s | 6.2 |
| 2016 | 32.3°C | 30.1°C | 28.0°C | 35.5°C | 25.6°C | 2 mm | 68% | 5 m/s | 6.7 |
| 2015 | 30.9°C | 29.2°C | 27.6°C | 34.9°C | 26.4°C | 147 mm | 74% | 4.5 m/s | 6.1 |
| 2014 | 33.0°C | 31.2°C | 29.4°C | 35.0°C | 27.1°C | 14 mm | 66% | 3.8 m/s | 6.6 |
| 2013 | 32.5°C | 30.5°C | 28.4°C | 34.4°C | 25.9°C | 3 mm | 66% | 4.8 m/s | 7 |
| 2012 ❄️ | 30.2°C | 28.6°C | 26.9°C | 34.2°C | 24.7°C | 85 mm | 71% | 5.4 m/s | 5.4 |
| 2011 | 31.0°C | 29.1°C | 27.2°C | 33.5°C | 24.9°C | 16 mm | 69% | 3.9 m/s | 6.5 |
| 2010 | 32.7°C | 30.7°C | 28.6°C | 35.1°C | 27.3°C | 3 mm | 68% | 4.3 m/s | 6.8 |
| 2009 | 32.4°C | 29.9°C | 27.4°C | 35.6°C | 25.7°C | 11 mm | 67% | 3.9 m/s | 7 |
| 2008 | 31.3°C | 29.7°C | 28.2°C | 35.3°C | 25.6°C | 158 mm | 73% | 4 m/s | 5.8 |
| 2007 | 31.5°C | 29.6°C | 27.7°C | 34.4°C | 22.7°C | 110 mm | 72% | 5.1 m/s | 5.9 |
| 2006 | 31.3°C | 29.5°C | 27.6°C | 33.9°C | 25.8°C | 177 mm | 75% | 4.3 m/s | 5.9 |
| 2005 | 33.0°C | 31.2°C | 29.3°C | 36.9°C | 27.3°C | 14 mm | 67% | 4.5 m/s | 6.4 |
| 2004 | 31.9°C | 29.2°C | 26.5°C | 36.7°C | 22.3°C | 114 mm | 71% | 4.5 m/s | 6.3 |
| 2003 | 31.9°C | 29.7°C | 27.6°C | 35.0°C | 25.7°C | 15 mm | 67% | 4.1 m/s | 6.6 |
| 2002 | 32.7°C | 30.8°C | 28.9°C | 36.1°C | 26.3°C | 16 mm | 64% | 3.6 m/s | 6.3 |
| 2001 | 31.7°C | 29.0°C | 26.3°C | 36.4°C | 23.0°C | 17 mm | 66% | 4.9 m/s | 7 |
| 2000 🌧️ | 29.7°C | 28.7°C | 27.6°C | 32.5°C | 26.6°C | 243 mm | 80% | 4.9 m/s | 5.6 |
| 1999 | 31.4°C | 29.8°C | 28.2°C | 35.7°C | 24.9°C | 180 mm | 75% | 4.2 m/s | 6 |
| 1998 | 33.2°C | 31.1°C | 29.0°C | 38.7°C | 26.9°C | 23 mm | 65% | 4.3 m/s | 6.8 |
| 1997 | 32.0°C | 29.8°C | 27.6°C | 35.5°C | 25.1°C | 7 mm | 67% | 3.9 m/s | 6.9 |
| 1996 | 33.1°C | 31.0°C | 28.8°C | 35.5°C | 27.0°C | 6 mm | 63% | 4.4 m/s | 6.7 |
| 1995 | 31.7°C | 28.9°C | 26.1°C | 35.6°C | 23.8°C | 17 mm | 68% | 4 m/s | 6.8 |
| 1994 | 32.7°C | 30.3°C | 27.8°C | 34.4°C | 26.4°C | 4 mm | 63% | 3.9 m/s | 6.6 |
| 1993 | 32.5°C | 29.7°C | 26.9°C | 36.7°C | 25.5°C | 0 mm | 63% | 4.1 m/s | 6.9 |
| 1992 | 31.4°C | 29.2°C | 27.0°C | 38.0°C | 25.1°C | 15 mm | 70% | 4.7 m/s | 6.3 |
| 1991 | 32.5°C | 30.4°C | 28.2°C | 36.5°C | 27.2°C | 11 mm | 68% | 4 m/s | 6.4 |
| 1990 | 32.2°C | 30.1°C | 28.1°C | 38.0°C | 25.9°C | 45 mm | 71% | 4.7 m/s | 6.4 |
| 1989 | 31.5°C | 29.5°C | 27.5°C | 34.9°C | 25.0°C | 14 mm | 68% | 4.2 m/s | 6.5 |
| 1988 | 33.3°C | 31.3°C | 29.2°C | 36.6°C | 25.3°C | 88 mm | 65% | 4.4 m/s | 6 |
| 1987 | 32.5°C | 30.3°C | 28.1°C | 35.5°C | 25.9°C | 15 mm | 65% | 3.9 m/s | 6.6 |
| 1986 | 32.6°C | 30.4°C | 28.2°C | 37.6°C | 26.6°C | 24 mm | 71% | 4 m/s | 6.5 |
| 1985 | 32.4°C | 30.2°C | 28.0°C | 35.9°C | 25.8°C | 4 mm | 66% | 4 m/s | 6.9 |
| 1984 | 31.3°C | 29.1°C | 27.0°C | 33.9°C | 24.0°C | 108 mm | 71% | 4.2 m/s | 6.5 |
| 1983 | 31.7°C | 29.7°C | 27.8°C | 34.1°C | 25.6°C | 39 mm | 69% | 4.9 m/s | — |
| 1982 | 31.9°C | 29.8°C | 27.7°C | 35.1°C | 25.2°C | 5 mm | 64% | 4.5 m/s | — |
| 1981 | 31.0°C | 29.1°C | 27.1°C | 33.4°C | 25.0°C | 20 mm | 69% | 3.5 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 32.1°C with lows near 28°C (mean 30.1°C), based on 45 years of NASA POWER data.
March averages 50 mm of rainfall in Karratha, a relatively wet time of year. The wettest on record was 243 mm in 2000.
The hottest March reached 39.6°C in 2019. The coldest dipped to 22.3°C in 2004.
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 31.7°C to 32.4°C and overnight lows from 27.5°C to 28.9°C over the same span.
March is one of the warmer months of the year in Karratha and a relatively wet time of year, so plan for around 32.1°C daytime highs and 28°C at night.
Not quite — March is the 12th coolest month in Karratha, averaging 30.1°C.
For March in Karratha, pack light, breathable clothing and sun protection, with typical highs of 32.1°C and lows of 28°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 69% — moderately humid.
Average wind speed in March is 4.3 m/s. The windiest March on record averaged 5.4 m/s (2012).
The wettest March on record was 2000 with 243 mm. On average, March sees 50 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 Karratha 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.
