January is one of the cooler months of the year in Boynton Beach, with average highs near 22.9°C and lows around 17.8°C (mean 20.4°C). It is one of the drier months, averaging 63 mm of rainfall and 77% relative humidity across the period.
January is one of the cooler months of the year in Boynton Beach. Across 45 years of records, the warmest Januarys in Boynton Beach were 1989 and 2013 — when the month averaged 22.6°C — while the coldest was 1981 at 17°C. Typical January days reach 22.9°C with nights near 17.8°C. The long-term trend is warming, about 0.2°C per decade.
January is one of the drier months in Boynton Beach, averaging 63 mm of rainfall. The wettest January on record was 1993 with 204 mm, while the driest was 2012 at 8 mm.
Relative humidity in Boynton Beach during January averages 77%. The most humid January was 1993 at 82%, and the least humid was 1981 at 70%.
January receives about 3.5 kWh/m²/day of solar energy in Boynton Beach. The sunniest January was 1985 at 3.9 kWh/m²/day, and the cloudiest was 1988 at 2.7.
Average wind speed in Boynton Beach during January is 4 m/s. The windiest January was 1994 at 4.9 m/s, while the calmest were 1989 and 2002 at 3.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 19.6°C | 20.9°C | 20.1°C | 20.5°C | 21.0°C | +1.4°C |
| Avg High | 22.3°C | 23.2°C | 22.8°C | 23.1°C | 23.5°C | +1.2°C |
| Avg Low | 16.9°C | 18.7°C | 17.4°C | 17.8°C | 18.4°C | +1.5°C |
| Avg Rain | 58 mm | 105 mm | 29 mm | 71 mm | 41 mm | -17 mm |
January temperatures in Boynton Beach have risen by about 1.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 3.6°C (1985) to a record high of 27.8°C (2020).
Rainfall in January is one of the drier months, averaging 63 mm, with a wettest year of 204 mm.
One of the best times to visit Boynton Beach
January is one of the best times to visit Boynton Beach. Expect days averaging 22.9°C and nights around 17.8°C (mean 20.4°C) — cooler than Boynton Beach's yearly average — with moderate rainfall (63 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 | 22.6°C | 19.8°C | 17.0°C | 26.6°C | 11.8°C | 41 mm | 80% | 4 m/s | 3.4 |
| 2024 | 23.8°C | 21.5°C | 19.3°C | 27.4°C | 14.3°C | 78 mm | 81% | 4.4 m/s | 2.9 |
| 2023 | 24.7°C | 22.1°C | 19.4°C | 27.3°C | 9.1°C | 13 mm | 76% | 3.5 m/s | 3.8 |
| 2022 | 23.0°C | 20.5°C | 18.0°C | 27.2°C | 8.6°C | 61 mm | 76% | 3.9 m/s | 3.5 |
| 2021 | 22.6°C | 20.1°C | 17.7°C | 26.8°C | 11.5°C | 23 mm | 77% | 3.5 m/s | 3.8 |
| 2020 | 24.2°C | 21.7°C | 19.2°C | 27.8°C | 8.2°C | 30 mm | 76% | 4.2 m/s | 3.8 |
| 2019 | 23.4°C | 20.8°C | 18.1°C | 27.5°C | 11.3°C | 118 mm | 76% | 4 m/s | 3.7 |
| 2018 | 22.1°C | 19.8°C | 17.4°C | 26.1°C | 7.2°C | 64 mm | 80% | 4.8 m/s | 3.5 |
| 2017 | 24.1°C | 21.5°C | 18.9°C | 27.0°C | 13.8°C | 50 mm | 76% | 4.3 m/s | 3.7 |
| 2016 | 22.4°C | 20.1°C | 17.8°C | 27.2°C | 8.1°C | 202 mm | 79% | 4.2 m/s | 2.9 |
| 2015 | 24.0°C | 21.6°C | 19.1°C | 27.2°C | 12.7°C | 50 mm | 76% | 3.8 m/s | 3.5 |
| 2014 | 23.3°C | 20.5°C | 17.8°C | 27.7°C | 10.2°C | 113 mm | 76% | 4 m/s | 3.3 |
| 2013 | 24.9°C | 22.6°C | 20.2°C | 26.4°C | 13.7°C | 24 mm | 77% | 3.4 m/s | 3.4 |
| 2012 | 23.2°C | 20.6°C | 18.0°C | 26.5°C | 9.4°C | 8 mm | 71% | 3.5 m/s | 3.8 |
| 2011 | 22.7°C | 19.7°C | 16.7°C | 26.6°C | 11.0°C | 43 mm | 75% | 3.8 m/s | 3.4 |
| 2010 | 20.5°C | 17.4°C | 14.3°C | 26.8°C | 5.3°C | 43 mm | 76% | 4.5 m/s | 3.5 |
| 2009 | 22.6°C | 19.8°C | 17.0°C | 26.6°C | 7.8°C | 12 mm | 73% | 3.8 m/s | 3.8 |
| 2008 | 23.6°C | 21.1°C | 18.6°C | 26.9°C | 8.8°C | 33 mm | 76% | 4.2 m/s | 3.4 |
| 2007 | 24.7°C | 22.3°C | 19.9°C | 27.4°C | 13.2°C | 18 mm | 76% | 3.8 m/s | 3.4 |
| 2006 | 23.0°C | 20.4°C | 17.8°C | 26.3°C | 10.3°C | 18 mm | 78% | 4.3 m/s | 3.6 |
| 2005 | 23.2°C | 20.7°C | 18.2°C | 26.0°C | 12.6°C | 42 mm | 74% | 4.3 m/s | 3.6 |
| 2004 | 22.9°C | 20.2°C | 17.5°C | 26.4°C | 12.8°C | 59 mm | 74% | 3.7 m/s | 3.5 |
| 2003 | 21.2°C | 17.9°C | 14.6°C | 27.0°C | 7.0°C | 29 mm | 74% | 3.9 m/s | 3.8 |
| 2002 | 23.4°C | 20.8°C | 18.1°C | 26.5°C | 6.5°C | 18 mm | 81% | 3.3 m/s | 3.6 |
| 2001 | 21.4°C | 18.1°C | 14.8°C | 26.2°C | 9.1°C | 25 mm | 74% | 4 m/s | 3.8 |
| 2000 | 22.5°C | 20.0°C | 17.4°C | 25.7°C | 8.0°C | 35 mm | 79% | 4.2 m/s | 3.7 |
| 1999 | 23.7°C | 21.6°C | 19.6°C | 25.8°C | 11.4°C | 108 mm | 79% | 4.2 m/s | 3.5 |
| 1998 | 23.1°C | 20.9°C | 18.6°C | 26.3°C | 12.7°C | 117 mm | 81% | 4.5 m/s | 3.2 |
| 1997 | 23.0°C | 20.6°C | 18.2°C | 26.6°C | 8.5°C | 83 mm | 77% | 3.7 m/s | 3.6 |
| 1996 | 22.1°C | 19.5°C | 16.8°C | 25.9°C | 6.8°C | 60 mm | 81% | 4.2 m/s | 3.4 |
| 1995 | 21.6°C | 19.3°C | 17.0°C | 25.3°C | 10.6°C | 94 mm | 80% | 4.1 m/s | 3.4 |
| 1994 | 22.7°C | 20.7°C | 18.7°C | 26.6°C | 12.3°C | 126 mm | 82% | 4.9 m/s | 2.9 |
| 1993 🌧️ | 24.0°C | 22.4°C | 20.7°C | 26.0°C | 13.0°C | 204 mm | 82% | 4.2 m/s | 3.1 |
| 1992 | 22.0°C | 19.6°C | 17.1°C | 25.4°C | 10.0°C | 96 mm | 81% | 4.2 m/s | 3.4 |
| 1991 | 24.3°C | 22.2°C | 20.0°C | 27.1°C | 13.9°C | 129 mm | 81% | 3.7 m/s | 3.3 |
| 1990 | 25.0°C | 22.5°C | 20.0°C | 27.1°C | 13.6°C | 29 mm | 77% | 3.9 m/s | 3.5 |
| 1989 🔥 | 25.1°C | 22.6°C | 20.1°C | 26.5°C | 13.7°C | 35 mm | 74% | 3.3 m/s | 3.6 |
| 1988 | 22.4°C | 20.2°C | 18.0°C | 25.9°C | 10.2°C | 72 mm | 79% | 4.5 m/s | 2.7 |
| 1987 | 22.4°C | 19.4°C | 16.5°C | 26.9°C | 10.0°C | 33 mm | 77% | 4.4 m/s | 3.5 |
| 1986 | 22.2°C | 19.4°C | 16.7°C | 25.6°C | 4.1°C | 120 mm | 77% | 3.9 m/s | 3.2 |
| 1985 | 20.9°C | 17.8°C | 14.7°C | 25.2°C | 3.6°C | 23 mm | 73% | 4.3 m/s | 3.9 |
| 1984 | 22.5°C | 20.2°C | 17.8°C | 26.6°C | 11.8°C | 24 mm | 81% | 4.3 m/s | 3.1 |
| 1983 | 22.0°C | 19.7°C | 17.3°C | 26.0°C | 11.3°C | 161 mm | 79% | 3.6 m/s | — |
| 1982 | 23.1°C | 20.3°C | 17.4°C | 26.6°C | 6.2°C | 34 mm | 73% | 3.9 m/s | — |
| 1981 ❄️ | 20.2°C | 17.0°C | 13.8°C | 24.0°C | 8.2°C | 18 mm | 70% | 3.9 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 22.9°C with lows near 17.8°C (mean 20.4°C), based on 45 years of NASA POWER data.
January averages 63 mm of rainfall in Boynton Beach, one of the drier months. The wettest on record was 204 mm in 1993.
The hottest January reached 27.8°C in 2020. The coldest dipped to 3.6°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.8°C. Daytime highs moved from 21.7°C to 23.3°C and overnight lows from 16.2°C to 18.3°C over the same span.
January is one of the cooler months of the year in Boynton Beach and one of the drier months, so plan for around 22.9°C daytime highs and 17.8°C at night.
Yes — January is the coldest month of the year in Boynton Beach, averaging 20.4°C.
For January in Boynton Beach, pack light layers you can adjust through the day, with typical highs of 22.9°C and lows of 17.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 77% — quite humid.
Average wind speed in January is 4 m/s. The windiest January on record averaged 4.9 m/s (1994).
The wettest January on record was 1993 with 204 mm. On average, January sees 63 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 Boynton Beach 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.
