March is one of the cooler months of the year in Santa Maria, with average highs near 16.3°C and lows around 9.1°C (mean 12.7°C). It is a relatively wet time of year, averaging 76 mm of rainfall and 78% relative humidity across the period.
March is one of the cooler months of the year in Santa Maria. Across 45 years of records, the warmest March in Santa Maria was 2015 — when the month averaged 16.3°C — while the coldest was 2006 at 10°C. Typical March days reach 16.3°C with nights near 9.1°C. The long-term March temperature trend is broadly flat.
March is a relatively wet time of year in Santa Maria, averaging 76 mm of rainfall. The wettest March on record was 1991 with 259 mm, while the driest was 1988 at 1 mm.
Relative humidity in Santa Maria during March averages 78%. The most humid March was 1992 at 85%, and the least humid was 1988 at 66%.
March receives about 5.1 kWh/m²/day of solar energy in Santa Maria. The sunniest Marchs were 1988 and 2008 at 5.8 kWh/m²/day, and the cloudiest were 1986 and 1992 at 4.4.
Average wind speed in Santa Maria during March is 3.3 m/s. The windiest March was 1991 at 4.2 m/s, while the calmest was 2015 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.7°C | 12.6°C | 12.8°C | 13.2°C | 12.1°C | -0.6°C |
| Avg High | 16.4°C | 16.0°C | 16.6°C | 16.9°C | 15.4°C | -1°C |
| Avg Low | 9.0°C | 9.1°C | 8.9°C | 9.6°C | 8.9°C | -0.1°C |
| Avg Rain | 83 mm | 99 mm | 49 mm | 68 mm | 85 mm | +2 mm |
March temperatures in Santa Maria have stayed relatively stable across the record.
March has ranged from a record low of 4.1°C (2007) to a record high of 27°C (1988).
Rainfall in March is a relatively wet time of year, averaging 76 mm, with a wettest year of 259 mm.
A quieter season to visit Santa Maria
If your dates are flexible, the more temperate months of August and September tend to be the most comfortable for visiting Santa Maria. That said, March — with days averaging 16.3°C and nights around 9.1°C (mean 12.7°C) and moderate rainfall (76 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.5°C | 12.2°C | 8.8°C | 24.3°C | 6.7°C | 67 mm | 81% | 3.5 m/s | 4.9 |
| 2024 | 15.4°C | 12.7°C | 9.9°C | 20.4°C | 8.1°C | 92 mm | 84% | 3.4 m/s | 5.3 |
| 2023 | 13.0°C | 10.5°C | 8.1°C | 15.9°C | 4.9°C | 177 mm | 84% | 3.7 m/s | 4.8 |
| 2022 | 17.9°C | 13.6°C | 9.4°C | 22.4°C | 6.1°C | 27 mm | 73% | 3.4 m/s | 5.5 |
| 2021 | 15.3°C | 11.6°C | 7.9°C | 21.9°C | 5.5°C | 30 mm | 76% | 3.2 m/s | 5.6 |
| 2020 | 15.1°C | 12.2°C | 9.3°C | 21.3°C | 6.0°C | 115 mm | 80% | 3.2 m/s | 4.7 |
| 2019 | 15.4°C | 12.3°C | 9.3°C | 21.0°C | 6.6°C | 99 mm | 81% | 3.1 m/s | 5.3 |
| 2018 | 16.1°C | 12.6°C | 9.1°C | 21.6°C | 5.3°C | 150 mm | 77% | 3.1 m/s | 4.6 |
| 2017 | 17.1°C | 13.5°C | 9.9°C | 23.0°C | 5.1°C | 32 mm | 82% | 3.3 m/s | 5.4 |
| 2016 | 17.5°C | 13.8°C | 10.2°C | 22.2°C | 7.9°C | 94 mm | 79% | 3.5 m/s | 5.3 |
| 2015 🔥 | 20.8°C | 16.3°C | 11.9°C | 25.1°C | 8.3°C | 6 mm | 67% | 2.5 m/s | 5.4 |
| 2014 | 18.3°C | 14.4°C | 10.5°C | 24.2°C | 9.0°C | 46 mm | 74% | 3 m/s | 5.2 |
| 2013 | 17.7°C | 13.5°C | 9.3°C | 22.2°C | 7.1°C | 22 mm | 73% | 2.8 m/s | 5.1 |
| 2012 | 15.7°C | 11.9°C | 8.1°C | 23.5°C | 4.2°C | 69 mm | 74% | 3.1 m/s | 5.2 |
| 2011 | 14.8°C | 11.8°C | 8.8°C | 23.7°C | 5.2°C | 137 mm | 83% | 3.5 m/s | 4.9 |
| 2010 | 15.9°C | 12.3°C | 8.7°C | 21.9°C | 5.1°C | 21 mm | 75% | 3 m/s | 5.5 |
| 2009 | 16.4°C | 12.4°C | 8.3°C | 21.8°C | 4.2°C | 23 mm | 75% | 3.4 m/s | 5.6 |
| 2008 | 16.8°C | 12.6°C | 8.3°C | 21.7°C | 4.3°C | 2 mm | 75% | 3.4 m/s | 5.8 |
| 2007 | 18.7°C | 14.2°C | 9.6°C | 26.8°C | 4.1°C | 8 mm | 70% | 2.8 m/s | 5.1 |
| 2006 ❄️ | 12.9°C | 10.0°C | 7.2°C | 17.7°C | 4.6°C | 124 mm | 81% | 3.5 m/s | 4.8 |
| 2005 | 16.6°C | 13.5°C | 10.3°C | 22.4°C | 7.5°C | 80 mm | 83% | 3 m/s | 4.6 |
| 2004 | 19.4°C | 15.0°C | 10.6°C | 24.7°C | 6.9°C | 17 mm | 75% | 2.9 m/s | 5 |
| 2003 | 17.3°C | 13.1°C | 9.0°C | 23.4°C | 6.9°C | 43 mm | 77% | 3.4 m/s | 5.7 |
| 2002 | 15.9°C | 12.0°C | 8.2°C | 20.0°C | 4.6°C | 24 mm | 76% | 3.3 m/s | 5.3 |
| 2001 | 16.0°C | 12.7°C | 9.4°C | 20.7°C | 5.6°C | 119 mm | 84% | 3.3 m/s | 4.9 |
| 2000 | 15.6°C | 12.0°C | 8.5°C | 20.5°C | 6.3°C | 45 mm | 80% | 3.4 m/s | 5.5 |
| 1999 | 13.9°C | 10.6°C | 7.4°C | 18.5°C | 4.9°C | 130 mm | 80% | 3.8 m/s | 5.2 |
| 1998 | 15.2°C | 12.2°C | 9.2°C | 20.5°C | 5.5°C | 109 mm | 84% | 3.3 m/s | 4.8 |
| 1997 | 17.7°C | 13.4°C | 9.2°C | 23.6°C | 4.7°C | 1 mm | 76% | 2.7 m/s | 5.1 |
| 1996 | 16.8°C | 13.1°C | 9.4°C | 21.0°C | 6.0°C | 32 mm | 81% | 2.7 m/s | 5.1 |
| 1995 | 15.6°C | 12.7°C | 9.7°C | 19.7°C | 5.7°C | 245 mm | 84% | 3.7 m/s | 4.8 |
| 1994 | 18.0°C | 13.8°C | 9.6°C | 23.9°C | 5.4°C | 42 mm | 75% | 2.9 m/s | 5.1 |
| 1993 | 17.0°C | 13.6°C | 10.3°C | 20.8°C | 7.0°C | 96 mm | 84% | 2.7 m/s | 4.9 |
| 1992 | 15.7°C | 12.9°C | 10.2°C | 18.6°C | 8.2°C | 70 mm | 85% | 3.2 m/s | 4.4 |
| 1991 🌧️ | 13.5°C | 10.5°C | 7.6°C | 18.1°C | 5.2°C | 259 mm | 81% | 4.2 m/s | 4.7 |
| 1990 | 16.9°C | 12.8°C | 8.7°C | 22.8°C | 5.2°C | 7 mm | 74% | 3.2 m/s | 4.8 |
| 1989 | 17.0°C | 13.0°C | 9.1°C | 21.4°C | 4.9°C | 21 mm | 78% | 3.5 m/s | 5 |
| 1988 | 19.4°C | 14.4°C | 9.3°C | 27.0°C | 5.2°C | 1 mm | 66% | 3.4 m/s | 5.8 |
| 1987 | 16.0°C | 12.4°C | 8.7°C | 20.4°C | 5.2°C | 91 mm | 75% | 3.4 m/s | 5.2 |
| 1986 | 17.2°C | 13.8°C | 10.3°C | 21.7°C | 6.5°C | 132 mm | 82% | 3 m/s | 4.4 |
| 1985 | 15.0°C | 11.2°C | 7.3°C | 22.4°C | 4.8°C | 49 mm | 73% | 3.7 m/s | 5.3 |
| 1984 | 18.7°C | 14.1°C | 9.4°C | 23.6°C | 7.1°C | 15 mm | 68% | 3.7 m/s | 5.3 |
| 1983 | 14.9°C | 12.3°C | 9.6°C | 18.6°C | 7.2°C | 147 mm | 84% | 3.7 m/s | — |
| 1982 | 14.4°C | 11.4°C | 8.3°C | 17.9°C | 5.3°C | 162 mm | 79% | 3.4 m/s | — |
| 1981 | 15.2°C | 12.0°C | 8.8°C | 18.9°C | 6.6°C | 127 mm | 80% | 3.3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 16.3°C with lows near 9.1°C (mean 12.7°C), based on 45 years of NASA POWER data.
March averages 76 mm of rainfall in Santa Maria, a relatively wet time of year. The wettest on record was 259 mm in 1991.
The hottest March reached 27°C in 1988. The coldest dipped to 4.1°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 8.7°C to 8.8°C while daytime highs eased from 15.6°C to 15.4°C, narrowing the gap between day and night.
March is one of the cooler months of the year in Santa Maria and a relatively wet time of year, so plan for around 16.3°C daytime highs and 9.1°C at night.
Not quite — March is the 4th coolest month in Santa Maria, averaging 12.7°C.
For March in Santa Maria, pack light layers you can adjust through the day, with typical highs of 16.3°C and lows of 9.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 78% — quite humid.
Average wind speed in March is 3.3 m/s. The windiest March on record averaged 4.2 m/s (1991).
The wettest March on record was 1991 with 259 mm. On average, March sees 76 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 Santa Maria 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.
