August is one of the warmer months of the year in Santa Maria, with average highs near 24.8°C and lows around 15.3°C (mean 20.1°C). It is one of the drier months, averaging 2 mm of rainfall and 64% relative humidity across the period.
August is one of the warmer months of the year in Santa Maria. Across 45 years of records, the warmest August in Santa Maria was 1998 — when the month averaged 21.8°C — while the coldest was 2010 at 18.4°C. Typical August days reach 24.8°C with nights near 15.3°C. The long-term August temperature trend is broadly flat.
August is one of the drier months in Santa Maria, averaging 2 mm of rainfall. The wettest August on record was 1983 with 15 mm, while the driest were 1996, 2022 and 2025, among others at 0 mm.
Relative humidity in Santa Maria during August averages 64%. The most humid August was 2015 at 71%, and the least humid was 1986 at 54%.
August receives about 6.1 kWh/m²/day of solar energy in Santa Maria. The sunniest August was 2003 at 6.9 kWh/m²/day, and the cloudiest was 1986 at 4.9.
Average wind speed in Santa Maria during August is 2.7 m/s. The windiest August was 1997 at 3.4 m/s, while the calmest was 2005 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.3°C | 20.4°C | 19.7°C | 19.9°C | 20.1°C | -0.2°C |
| Avg High | 25.3°C | 25.3°C | 24.4°C | 24.4°C | 24.7°C | -0.6°C |
| Avg Low | 15.4°C | 15.6°C | 15.0°C | 15.3°C | 15.6°C | +0.2°C |
| Avg Rain | 2 mm | 1 mm | 4 mm | 2 mm | 1 mm | -1 mm |
August temperatures in Santa Maria have fallen by about 0.9°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 11.6°C (2010) to a record high of 31.8°C (2025).
Rainfall in August is one of the drier months, averaging 2 mm, with a wettest year of 15 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
One of the best times to visit Santa Maria
August is one of the best times to visit Santa Maria. Expect days averaging 24.8°C and nights around 15.3°C (mean 20.1°C) — warmer than Santa Maria's yearly average — with low rainfall (2 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 | 24.5°C | 19.8°C | 15.1°C | 31.8°C | 12.6°C | 0 mm | 66% | 2.8 m/s | 6.6 |
| 2024 | 24.7°C | 20.0°C | 15.2°C | 27.5°C | 13.1°C | 0 mm | 62% | 2.8 m/s | 6.4 |
| 2023 | 25.1°C | 20.5°C | 16.0°C | 29.5°C | 12.7°C | 5 mm | 67% | 2.6 m/s | 6.4 |
| 2022 | 24.2°C | 19.7°C | 15.3°C | 27.1°C | 13.1°C | 0 mm | 66% | 2.6 m/s | 6.3 |
| 2021 | 24.1°C | 19.7°C | 15.3°C | 27.5°C | 13.6°C | 0 mm | 68% | 2.4 m/s | 5.9 |
| 2020 | 25.7°C | 21.1°C | 16.5°C | 31.4°C | 12.5°C | 1 mm | 63% | 2.5 m/s | 6.3 |
| 2019 | 24.6°C | 20.0°C | 15.4°C | 27.8°C | 13.0°C | 3 mm | 66% | 2.5 m/s | 6.1 |
| 2018 | 24.8°C | 20.5°C | 16.2°C | 29.5°C | 13.7°C | 2 mm | 63% | 2.7 m/s | 6.2 |
| 2017 | 25.4°C | 21.0°C | 16.5°C | 30.8°C | 13.5°C | 1 mm | 66% | 2.5 m/s | 5.8 |
| 2016 | 23.8°C | 19.1°C | 14.5°C | 27.4°C | 13.0°C | 2 mm | 69% | 2.7 m/s | 5.8 |
| 2015 | 25.2°C | 20.9°C | 16.5°C | 29.5°C | 14.9°C | 3 mm | 71% | 3 m/s | 6.6 |
| 2014 | 24.6°C | 20.2°C | 15.8°C | 28.6°C | 14.5°C | 3 mm | 69% | 2.4 m/s | 6.2 |
| 2013 | 24.0°C | 19.3°C | 14.6°C | 28.2°C | 12.3°C | 4 mm | 68% | 2.9 m/s | 6.2 |
| 2012 | 25.2°C | 20.5°C | 15.8°C | 28.1°C | 12.4°C | 2 mm | 59% | 2.6 m/s | 6.1 |
| 2011 | 23.6°C | 18.9°C | 14.2°C | 26.8°C | 12.7°C | 2 mm | 66% | 2.9 m/s | 5.8 |
| 2010 ❄️ | 23.1°C | 18.4°C | 13.7°C | 30.1°C | 11.6°C | 1 mm | 65% | 2.9 m/s | 6 |
| 2009 | 24.6°C | 19.7°C | 14.7°C | 31.7°C | 12.2°C | 3 mm | 63% | 2.5 m/s | 6 |
| 2008 | 24.8°C | 20.2°C | 15.5°C | 28.2°C | 13.0°C | 1 mm | 63% | 2.6 m/s | 6 |
| 2007 | 24.7°C | 20.0°C | 15.2°C | 28.5°C | 12.7°C | 3 mm | 64% | 2.8 m/s | 6.3 |
| 2006 | 23.9°C | 19.3°C | 14.7°C | 30.0°C | 13.4°C | 10 mm | 69% | 2.8 m/s | 6.2 |
| 2005 | 25.1°C | 20.3°C | 15.6°C | 27.7°C | 13.8°C | 3 mm | 64% | 2.3 m/s | 5.5 |
| 2004 | 24.4°C | 19.7°C | 15.1°C | 27.7°C | 13.2°C | 5 mm | 68% | 2.7 m/s | 6.3 |
| 2003 | 25.1°C | 20.2°C | 15.4°C | 28.0°C | 13.3°C | 3 mm | 67% | 3 m/s | 6.9 |
| 2002 | 23.1°C | 18.6°C | 14.0°C | 27.2°C | 11.7°C | 7 mm | 67% | 2.6 m/s | 5.8 |
| 2001 | 24.0°C | 19.2°C | 14.4°C | 27.4°C | 12.0°C | 0 mm | 66% | 2.8 m/s | 5.9 |
| 2000 | 24.7°C | 19.9°C | 15.0°C | 28.0°C | 12.4°C | 2 mm | 61% | 2.7 m/s | 6.5 |
| 1999 | 24.0°C | 19.1°C | 14.2°C | 31.4°C | 12.0°C | 1 mm | 64% | 3.2 m/s | 6.2 |
| 1998 🔥 | 26.7°C | 21.8°C | 17.0°C | 30.6°C | 13.2°C | 1 mm | 59% | 2.8 m/s | 6 |
| 1997 | 25.8°C | 21.1°C | 16.4°C | 31.3°C | 14.8°C | 1 mm | 66% | 3.4 m/s | 6.3 |
| 1996 | 25.7°C | 20.7°C | 15.6°C | 31.7°C | 11.9°C | 0 mm | 57% | 2.5 m/s | 6 |
| 1995 | 24.8°C | 19.7°C | 14.7°C | 27.4°C | 12.7°C | 0 mm | 61% | 2.7 m/s | 6 |
| 1994 | 25.6°C | 20.6°C | 15.7°C | 30.6°C | 12.3°C | 0 mm | 60% | 3 m/s | 6.1 |
| 1993 | 24.6°C | 20.1°C | 15.5°C | 29.8°C | 13.2°C | 1 mm | 66% | 2.9 m/s | 5.6 |
| 1992 | 26.1°C | 21.3°C | 16.5°C | 29.0°C | 12.9°C | 0 mm | 58% | 2.7 m/s | 5.8 |
| 1991 | 24.2°C | 19.5°C | 14.8°C | 28.0°C | 12.0°C | 2 mm | 67% | 3.2 m/s | 5.6 |
| 1990 | 25.2°C | 20.4°C | 15.5°C | 29.6°C | 13.3°C | 0 mm | 65% | 3.1 m/s | 6.1 |
| 1989 | 23.7°C | 18.8°C | 13.9°C | 27.1°C | 12.2°C | 0 mm | 62% | 2.7 m/s | 5.9 |
| 1988 | 24.7°C | 20.0°C | 15.3°C | 27.7°C | 12.5°C | 0 mm | 65% | 2.8 m/s | 5.9 |
| 1987 | 24.5°C | 19.7°C | 14.8°C | 28.5°C | 12.4°C | 0 mm | 63% | 2.5 m/s | 5.8 |
| 1986 | 25.7°C | 20.7°C | 15.7°C | 28.1°C | 13.3°C | 0 mm | 54% | 2.4 m/s | 4.9 |
| 1985 | 25.5°C | 20.4°C | 15.3°C | 31.2°C | 12.3°C | 0 mm | 57% | 2.8 m/s | 6.1 |
| 1984 | 26.5°C | 21.5°C | 16.5°C | 30.6°C | 13.7°C | 1 mm | 58% | 2.9 m/s | 6.1 |
| 1983 🌧️ | 25.8°C | 21.2°C | 16.5°C | 30.9°C | 13.6°C | 15 mm | 62% | 2.8 m/s | — |
| 1982 | 25.1°C | 20.1°C | 15.0°C | 28.3°C | 11.7°C | 1 mm | 56% | 2.8 m/s | — |
| 1981 | 25.9°C | 20.7°C | 15.4°C | 29.4°C | 12.6°C | 0 mm | 55% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 24.8°C with lows near 15.3°C (mean 20.1°C), based on 45 years of NASA POWER data.
August averages 2 mm of rainfall in Santa Maria, one of the drier months. The wettest on record was 15 mm in 1983.
The hottest August reached 31.8°C in 2025. The coldest dipped to 11.6°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have fallen by about 0.9°C. Daytime highs moved from 25.8°C to 24.5°C and overnight lows from 15.7°C to 15.4°C over the same span.
August is one of the warmer months of the year in Santa Maria and one of the drier months, so plan for around 24.8°C daytime highs and 15.3°C at night.
Not quite — August is the 12th coolest month in Santa Maria, averaging 20.1°C.
For August in Santa Maria, pack light layers you can adjust through the day, with typical highs of 24.8°C and lows of 15.3°C.
Relative humidity in August averages 64% — moderately humid.
Average wind speed in August is 2.7 m/s. The windiest August on record averaged 3.4 m/s (1997).
The wettest August on record was 1983 with 15 mm. On average, August sees 2 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 August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
