April is one of the cooler months of the year in Santa Maria, with average highs near 17.9°C and lows around 9.7°C (mean 13.8°C). It is about average for rainfall, averaging 26 mm of rainfall and 74% relative humidity across the period.
April is one of the cooler months of the year in Santa Maria. Across 45 years of records, the warmest April in Santa Maria was 1989 — when the month averaged 16.4°C — while the coldest was 2001 at 11.7°C. Typical April days reach 17.9°C with nights near 9.7°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Santa Maria, averaging 26 mm of rainfall. The wettest April on record was 2006 with 98 mm, while the driest was 2023 at 0 mm.
Relative humidity in Santa Maria during April averages 74%. The most humid April was 2006 at 84%, and the least humid was 1985 at 64%.
April receives about 6.4 kWh/m²/day of solar energy in Santa Maria. The sunniest April was 1993 at 7.1 kWh/m²/day, and the cloudiest was 2006 at 5.3.
Average wind speed in Santa Maria during April is 3.4 m/s. The windiest April was 1984 at 4.5 m/s, while the calmest was 2019 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.2°C | 13.8°C | 13.2°C | 14.1°C | 13.7°C | -0.5°C |
| Avg High | 18.6°C | 18.0°C | 17.1°C | 18.1°C | 17.7°C | -0.9°C |
| Avg Low | 9.8°C | 9.7°C | 9.2°C | 10.0°C | 9.7°C | -0.1°C |
| Avg Rain | 29 mm | 17 mm | 33 mm | 25 mm | 23 mm | -5 mm |
April temperatures in Santa Maria have stayed relatively stable across the record.
April has ranged from a record low of 4.1°C (1999) to a record high of 30.3°C (2004).
Rainfall in April is about average for rainfall, averaging 26 mm, with a wettest year of 98 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.
A good time to visit Santa Maria
April is a good time to visit Santa Maria, with days averaging 17.9°C and nights around 9.7°C (mean 13.8°C, cooler than Santa Maria's yearly average) and low rainfall. August and September are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 17.4°C | 13.8°C | 10.1°C | 21.7°C | 7.7°C | 12 mm | 77% | 2.8 m/s | 6.1 |
| 2024 | 17.0°C | 13.5°C | 10.0°C | 22.3°C | 6.3°C | 46 mm | 81% | 3.4 m/s | 6.2 |
| 2023 | 16.3°C | 12.5°C | 8.7°C | 20.5°C | 5.4°C | 0 mm | 82% | 3.3 m/s | 6.5 |
| 2022 | 19.2°C | 14.4°C | 9.6°C | 27.7°C | 5.6°C | 11 mm | 69% | 3.8 m/s | 7 |
| 2021 | 18.0°C | 13.6°C | 9.1°C | 25.5°C | 7.2°C | 1 mm | 72% | 3.5 m/s | 6.5 |
| 2020 | 18.0°C | 14.2°C | 10.5°C | 24.9°C | 6.9°C | 71 mm | 77% | 3.3 m/s | 6.4 |
| 2019 | 17.7°C | 14.4°C | 11.1°C | 22.2°C | 9.2°C | 9 mm | 81% | 2.6 m/s | 5.9 |
| 2018 | 18.2°C | 14.1°C | 9.9°C | 25.2°C | 6.4°C | 12 mm | 75% | 3.2 m/s | 6.5 |
| 2017 | 17.6°C | 13.8°C | 10.0°C | 20.9°C | 6.7°C | 36 mm | 79% | 3.4 m/s | 6.6 |
| 2016 | 19.3°C | 15.2°C | 11.1°C | 24.8°C | 8.3°C | 17 mm | 73% | 3.3 m/s | 6.6 |
| 2015 | 19.3°C | 15.0°C | 10.6°C | 23.0°C | 8.1°C | 18 mm | 66% | 3.3 m/s | 6.7 |
| 2014 | 19.1°C | 14.8°C | 10.4°C | 26.8°C | 8.3°C | 17 mm | 70% | 3.2 m/s | 6.4 |
| 2013 | 19.4°C | 14.7°C | 10.1°C | 23.5°C | 6.2°C | 5 mm | 68% | 3.4 m/s | 6.4 |
| 2012 | 17.9°C | 13.7°C | 9.4°C | 26.7°C | 4.6°C | 61 mm | 73% | 3.5 m/s | 6.3 |
| 2011 | 16.4°C | 12.6°C | 8.9°C | 20.7°C | 5.4°C | 8 mm | 80% | 3.4 m/s | 6.7 |
| 2010 | 15.9°C | 12.4°C | 8.8°C | 21.3°C | 6.5°C | 64 mm | 78% | 3.7 m/s | 6.3 |
| 2009 | 17.4°C | 13.1°C | 8.7°C | 29.6°C | 5.6°C | 9 mm | 71% | 3.7 m/s | 6.7 |
| 2008 | 18.2°C | 13.4°C | 8.6°C | 25.6°C | 4.8°C | 7 mm | 67% | 3.7 m/s | 7 |
| 2007 | 18.3°C | 13.9°C | 9.4°C | 24.0°C | 6.1°C | 23 mm | 70% | 3.5 m/s | 6.4 |
| 2006 🌧️ | 15.3°C | 12.6°C | 9.9°C | 20.0°C | 7.2°C | 98 mm | 84% | 3.2 m/s | 5.3 |
| 2005 | 16.4°C | 12.7°C | 8.9°C | 20.8°C | 6.6°C | 25 mm | 80% | 3.5 m/s | 6.8 |
| 2004 | 19.3°C | 14.7°C | 10.1°C | 30.3°C | 7.7°C | 6 mm | 71% | 2.9 m/s | 6.7 |
| 2003 | 15.5°C | 12.2°C | 8.9°C | 20.9°C | 5.9°C | 40 mm | 78% | 3.4 m/s | 6.6 |
| 2002 | 17.5°C | 13.6°C | 9.7°C | 26.1°C | 6.9°C | 8 mm | 76% | 3.4 m/s | 6.3 |
| 2001 ❄️ | 15.3°C | 11.7°C | 8.1°C | 24.0°C | 5.0°C | 34 mm | 79% | 3.6 m/s | 6.4 |
| 2000 | 17.7°C | 13.8°C | 9.9°C | 22.5°C | 7.3°C | 76 mm | 78% | 3.5 m/s | 6.4 |
| 1999 | 15.6°C | 11.9°C | 8.2°C | 22.4°C | 4.1°C | 50 mm | 76% | 3.9 m/s | 6.2 |
| 1998 | 15.4°C | 12.2°C | 9.0°C | 23.1°C | 5.8°C | 57 mm | 81% | 3.4 m/s | 6.4 |
| 1997 | 18.9°C | 14.2°C | 9.5°C | 22.7°C | 5.0°C | 1 mm | 72% | 3.8 m/s | 6.7 |
| 1996 | 19.9°C | 15.3°C | 10.8°C | 28.2°C | 7.2°C | 17 mm | 71% | 3.6 m/s | 6.9 |
| 1995 | 16.6°C | 13.0°C | 9.4°C | 21.4°C | 6.0°C | 13 mm | 80% | 3.4 m/s | 6.4 |
| 1994 | 18.3°C | 14.0°C | 9.8°C | 23.7°C | 8.4°C | 20 mm | 74% | 3.7 m/s | 6.2 |
| 1993 | 17.9°C | 13.6°C | 9.3°C | 22.5°C | 7.0°C | 2 mm | 79% | 3.7 m/s | 7.1 |
| 1992 | 20.1°C | 15.7°C | 11.3°C | 26.7°C | 8.6°C | 1 mm | 75% | 3.2 m/s | 6.4 |
| 1991 | 16.4°C | 12.3°C | 8.2°C | 20.9°C | 5.7°C | 5 mm | 79% | 3.7 m/s | 6.8 |
| 1990 | 20.4°C | 15.7°C | 11.0°C | 26.0°C | 8.0°C | 9 mm | 69% | 3.3 m/s | 6.3 |
| 1989 🔥 | 21.0°C | 16.4°C | 11.7°C | 30.0°C | 8.7°C | 6 mm | 67% | 2.9 m/s | 6 |
| 1988 | 18.7°C | 14.6°C | 10.5°C | 24.8°C | 8.2°C | 67 mm | 68% | 3.3 m/s | 6.1 |
| 1987 | 20.8°C | 15.7°C | 10.7°C | 27.6°C | 7.5°C | 7 mm | 65% | 3.1 m/s | 6.3 |
| 1986 | 17.7°C | 13.5°C | 9.3°C | 25.2°C | 7.0°C | 11 mm | 75% | 3.4 m/s | 5.9 |
| 1985 | 20.2°C | 15.3°C | 10.5°C | 27.6°C | 7.4°C | 3 mm | 64% | 3.1 m/s | 5.6 |
| 1984 | 18.3°C | 13.5°C | 8.6°C | 25.5°C | 6.2°C | 11 mm | 66% | 4.5 m/s | 6.5 |
| 1983 | 15.0°C | 11.8°C | 8.6°C | 19.2°C | 5.7°C | 78 mm | 79% | 3.9 m/s | — |
| 1982 | 16.9°C | 13.1°C | 9.3°C | 22.0°C | 4.2°C | 60 mm | 76% | 3.4 m/s | — |
| 1981 | 18.8°C | 14.0°C | 9.2°C | 29.8°C | 6.7°C | 16 mm | 71% | 3.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 17.9°C with lows near 9.7°C (mean 13.8°C), based on 45 years of NASA POWER data.
April averages 26 mm of rainfall in Santa Maria, about average for rainfall. The wettest on record was 98 mm in 2006.
The hottest April reached 30.3°C in 2004. The coldest dipped to 4.1°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 9.2°C to 9.5°C while daytime highs eased from 17.8°C to 17.6°C, narrowing the gap between day and night.
April is one of the cooler months of the year in Santa Maria and about average for rainfall, so plan for around 17.9°C daytime highs and 9.7°C at night.
Not quite — April is the 5th coolest month in Santa Maria, averaging 13.8°C.
For April in Santa Maria, pack light layers you can adjust through the day, with typical highs of 17.9°C and lows of 9.7°C.
Relative humidity in April averages 74% — moderately humid.
Average wind speed in April is 3.4 m/s. The windiest April on record averaged 4.5 m/s (1984).
The wettest April on record was 2006 with 98 mm. On average, April sees 26 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 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.
