January is one of the cooler months of the year in Santa Maria, with average highs near 15.6°C and lows around 8.7°C (mean 12.1°C). It is a relatively wet time of year, averaging 85 mm of rainfall and 74% relative humidity across the period.
January is one of the cooler months of the year in Santa Maria. Across 45 years of records, the warmest January in Santa Maria was 2014 — when the month averaged 15.6°C — while the coldest was 1982 at 10.2°C. Typical January days reach 15.6°C with nights near 8.7°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Santa Maria, averaging 85 mm of rainfall. The wettest January on record was 1995 with 313 mm, while the driest was 2014 at 0 mm.
Relative humidity in Santa Maria during January averages 74%. The most humid January was 1995 at 87%, and the least humid was 2014 at 55%.
January receives about 3 kWh/m²/day of solar energy in Santa Maria. The sunniest Januarys were 2009 and 2025 at 3.4 kWh/m²/day, and the cloudiest was 1995 at 2.3.
Average wind speed in Santa Maria during January is 3 m/s. The windiest January was 1995 at 4.3 m/s, while the calmest was 2015 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.9°C | 12.1°C | 11.8°C | 13.0°C | 12.2°C | +0.3°C |
| Avg High | 15.6°C | 15.4°C | 15.2°C | 16.4°C | 15.6°C | 0°C |
| Avg Low | 8.3°C | 8.8°C | 8.3°C | 9.5°C | 8.8°C | +0.5°C |
| Avg Rain | 63 mm | 110 mm | 78 mm | 86 mm | 84 mm | +21 mm |
January temperatures in Santa Maria have stayed relatively stable across the record.
January has ranged from a record low of 0.7°C (2007) to a record high of 24.9°C (2018).
Rainfall in January is a relatively wet time of year, averaging 85 mm, with a wettest year of 313 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, January — with days averaging 15.6°C and nights around 8.7°C (mean 12.1°C) and higher rainfall (85 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 | 16.4°C | 12.3°C | 8.3°C | 20.6°C | 6.0°C | 6 mm | 68% | 2.7 m/s | 3.4 |
| 2024 | 15.5°C | 12.5°C | 9.6°C | 21.0°C | 5.6°C | 72 mm | 83% | 3.2 m/s | 3 |
| 2023 | 13.8°C | 11.1°C | 8.4°C | 16.5°C | 4.5°C | 244 mm | 83% | 3.9 m/s | 2.8 |
| 2022 | 16.1°C | 12.7°C | 9.2°C | 19.5°C | 5.1°C | 3 mm | 76% | 2.4 m/s | 3.2 |
| 2021 | 16.3°C | 12.7°C | 9.1°C | 23.8°C | 5.0°C | 158 mm | 73% | 3.3 m/s | 3 |
| 2020 | 15.5°C | 11.9°C | 8.4°C | 20.2°C | 5.6°C | 20 mm | 83% | 3.3 m/s | 3.2 |
| 2019 | 15.5°C | 12.7°C | 9.9°C | 19.1°C | 4.8°C | 145 mm | 81% | 3.3 m/s | 2.8 |
| 2018 | 18.2°C | 14.6°C | 10.9°C | 24.9°C | 6.1°C | 62 mm | 73% | 2.9 m/s | 2.9 |
| 2017 | 13.7°C | 11.0°C | 8.2°C | 19.4°C | 4.7°C | 241 mm | 81% | 3.6 m/s | 2.8 |
| 2016 | 15.1°C | 12.3°C | 9.5°C | 19.3°C | 6.5°C | 122 mm | 83% | 2.9 m/s | 2.7 |
| 2015 | 18.6°C | 14.7°C | 10.9°C | 24.3°C | 5.3°C | 13 mm | 70% | 2.1 m/s | 3.3 |
| 2014 🔥 | 19.9°C | 15.6°C | 11.4°C | 24.7°C | 8.4°C | 0 mm | 55% | 2.5 m/s | 3.2 |
| 2013 | 14.8°C | 11.1°C | 7.3°C | 20.4°C | 2.4°C | 27 mm | 68% | 2.8 m/s | 3.2 |
| 2012 | 17.0°C | 12.9°C | 8.8°C | 21.5°C | 3.3°C | 51 mm | 65% | 2.9 m/s | 3.3 |
| 2011 | 15.5°C | 12.1°C | 8.6°C | 20.3°C | 3.2°C | 39 mm | 74% | 2.8 m/s | 3.2 |
| 2010 | 15.8°C | 12.7°C | 9.7°C | 21.0°C | 7.1°C | 161 mm | 76% | 3.1 m/s | 2.8 |
| 2009 | 17.8°C | 13.6°C | 9.4°C | 24.0°C | 4.4°C | 14 mm | 63% | 2.7 m/s | 3.4 |
| 2008 | 13.5°C | 10.5°C | 7.6°C | 18.8°C | 4.0°C | 202 mm | 79% | 4 m/s | 2.8 |
| 2007 | 14.7°C | 10.7°C | 6.7°C | 21.9°C | 0.7°C | 34 mm | 66% | 3.1 m/s | 3.3 |
| 2006 | 15.1°C | 11.6°C | 8.2°C | 20.8°C | 4.6°C | 114 mm | 78% | 3.3 m/s | 3.3 |
| 2005 | 15.0°C | 12.1°C | 9.3°C | 22.6°C | 5.8°C | 154 mm | 80% | 3 m/s | 2.8 |
| 2004 | 14.9°C | 11.4°C | 8.0°C | 18.5°C | 3.8°C | 25 mm | 78% | 3 m/s | 3.1 |
| 2003 | 17.9°C | 14.3°C | 10.8°C | 24.2°C | 7.0°C | 6 mm | 77% | 2.5 m/s | 3.1 |
| 2002 | 13.8°C | 10.3°C | 6.8°C | 18.5°C | 2.2°C | 27 mm | 76% | 3 m/s | 3.2 |
| 2001 | 14.5°C | 11.1°C | 7.7°C | 22.9°C | 3.5°C | 132 mm | 72% | 2.9 m/s | 3.1 |
| 2000 | 15.1°C | 12.0°C | 8.9°C | 17.8°C | 6.1°C | 68 mm | 80% | 3 m/s | 2.5 |
| 1999 | 15.7°C | 12.1°C | 8.4°C | 20.5°C | 4.9°C | 75 mm | 74% | 2.9 m/s | 3 |
| 1998 | 14.8°C | 12.2°C | 9.7°C | 18.4°C | 5.2°C | 120 mm | 85% | 3.1 m/s | 2.8 |
| 1997 | 14.4°C | 11.7°C | 9.0°C | 18.5°C | 4.3°C | 141 mm | 84% | 3.3 m/s | 2.7 |
| 1996 | 16.0°C | 12.5°C | 9.0°C | 23.0°C | 3.7°C | 66 mm | 76% | 3 m/s | 3 |
| 1995 🌧️ | 14.1°C | 11.9°C | 9.8°C | 19.9°C | 5.8°C | 313 mm | 87% | 4.3 m/s | 2.3 |
| 1994 | 17.1°C | 13.1°C | 9.1°C | 22.4°C | 5.7°C | 49 mm | 65% | 2.6 m/s | 3.2 |
| 1993 | 14.2°C | 11.5°C | 8.8°C | 19.3°C | 2.6°C | 184 mm | 80% | 3.5 m/s | 2.6 |
| 1992 | 16.0°C | 12.0°C | 7.9°C | 21.0°C | 4.4°C | 62 mm | 70% | 2.9 m/s | 3 |
| 1991 | 15.8°C | 11.8°C | 7.9°C | 19.4°C | 4.8°C | 25 mm | 74% | 2.3 m/s | 3.1 |
| 1990 | 16.1°C | 12.0°C | 8.0°C | 20.8°C | 5.2°C | 69 mm | 71% | 3.7 m/s | 3.2 |
| 1989 | 14.5°C | 10.4°C | 6.3°C | 20.9°C | 2.3°C | 16 mm | 69% | 3 m/s | 3.2 |
| 1988 | 14.7°C | 11.4°C | 8.0°C | 20.0°C | 5.0°C | 48 mm | 75% | 3.1 m/s | 2.8 |
| 1987 | 14.8°C | 10.9°C | 7.1°C | 20.0°C | 1.8°C | 52 mm | 69% | 3.2 m/s | 3 |
| 1986 | 17.1°C | 13.9°C | 10.7°C | 21.2°C | 8.1°C | 43 mm | 74% | 2.8 m/s | 2.9 |
| 1985 | 15.0°C | 11.1°C | 7.2°C | 17.9°C | 4.1°C | 17 mm | 70% | 2.5 m/s | 3 |
| 1984 | 16.8°C | 12.9°C | 9.1°C | 21.7°C | 6.1°C | 4 mm | 71% | 2.5 m/s | 3 |
| 1983 | 16.2°C | 12.9°C | 9.6°C | 23.1°C | 5.3°C | 200 mm | 73% | 3.4 m/s | — |
| 1982 ❄️ | 14.0°C | 10.2°C | 6.5°C | 19.5°C | 2.7°C | 89 mm | 70% | 3.6 m/s | — |
| 1981 | 16.9°C | 13.4°C | 10.0°C | 21.4°C | 4.1°C | 99 mm | 68% | 2.9 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 15.6°C with lows near 8.7°C (mean 12.1°C), based on 45 years of NASA POWER data.
January averages 85 mm of rainfall in Santa Maria, a relatively wet time of year. The wettest on record was 313 mm in 1995.
The hottest January reached 24.9°C in 2018. The coldest dipped to 0.7°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 8.5°C to 8.9°C while daytime highs eased from 15.8°C to 15.6°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Santa Maria and a relatively wet time of year, so plan for around 15.6°C daytime highs and 8.7°C at night.
Yes — January is the coldest month of the year in Santa Maria, averaging 12.1°C.
For January in Santa Maria, pack light layers you can adjust through the day, with typical highs of 15.6°C and lows of 8.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 74% — moderately humid.
Average wind speed in January is 3 m/s. The windiest January on record averaged 4.3 m/s (1995).
The wettest January on record was 1995 with 313 mm. On average, January sees 85 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 January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
