January is one of the cooler months of the year in Naples, with average highs near 21.2°C and lows around 16.2°C (mean 18.7°C). It is one of the drier months, averaging 53 mm of rainfall and 81% relative humidity across the period.
January is one of the cooler months of the year in Naples. Across 45 years of records, the warmest January in Naples was 1993 — when the month averaged 21.5°C — while the coldest was 1981 at 15.6°C. Typical January days reach 21.2°C with nights near 16.2°C. The long-term January temperature trend is broadly flat.
January is one of the drier months in Naples, averaging 53 mm of rainfall. The wettest January on record was 2016 with 208 mm, while the driest was 2023 at 10 mm.
Relative humidity in Naples during January averages 81%. The most humid January was 1993 at 86%, and the least humid was 1981 at 69%.
January receives about 3.6 kWh/m²/day of solar energy in Naples. The sunniest Januarys were 2009, 2012 and 2020, among others at 4 kWh/m²/day, and the cloudiest were 1988 and 2024 at 2.9.
Average wind speed in Naples during January is 4 m/s. The windiest Januarys were 1988 and 1994 at 4.8 m/s, while the calmest were 2002, 2021 and 2023 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 19.6°C | 18.4°C | 18.4°C | 18.9°C | +0.8°C |
| Avg High | 20.7°C | 21.9°C | 21.1°C | 20.9°C | 21.3°C | +0.6°C |
| Avg Low | 15.6°C | 17.3°C | 15.8°C | 15.9°C | 16.4°C | +0.8°C |
| Avg Rain | 48 mm | 73 mm | 37 mm | 67 mm | 30 mm | -17 mm |
January temperatures in Naples have risen by about 1.3°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 3.6°C (2003) to a record high of 26.1°C (2016).
Rainfall in January is one of the drier months, averaging 53 mm, with a wettest year of 208 mm.
A good time to visit Naples
January is a good time to visit Naples, with days averaging 21.2°C and nights around 16.2°C (mean 18.7°C, cooler than Naples's yearly average) and moderate rainfall. March and November are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.8°C | 17.0°C | 14.1°C | 23.1°C | 8.5°C | 21 mm | 83% | 4.1 m/s | 3.6 |
| 2024 | 21.3°C | 19.1°C | 16.8°C | 24.0°C | 10.4°C | 52 mm | 85% | 4.1 m/s | 2.9 |
| 2023 | 22.2°C | 19.7°C | 17.2°C | 25.1°C | 8.9°C | 10 mm | 84% | 3.2 m/s | 3.9 |
| 2022 | 21.7°C | 19.3°C | 17.0°C | 25.7°C | 7.7°C | 55 mm | 78% | 3.9 m/s | 3.7 |
| 2021 | 20.6°C | 18.3°C | 15.9°C | 23.6°C | 10.1°C | 12 mm | 81% | 3.2 m/s | 3.8 |
| 2020 | 22.2°C | 19.8°C | 17.3°C | 25.1°C | 7.2°C | 32 mm | 80% | 4 m/s | 4 |
| 2019 | 20.7°C | 18.1°C | 15.5°C | 25.0°C | 9.6°C | 92 mm | 81% | 3.9 m/s | 3.7 |
| 2018 | 19.7°C | 16.7°C | 13.8°C | 22.6°C | 5.0°C | 30 mm | 84% | 4.6 m/s | 3.6 |
| 2017 | 22.3°C | 19.9°C | 17.6°C | 25.1°C | 8.1°C | 43 mm | 82% | 3.9 m/s | 3.8 |
| 2016 🌧️ | 20.8°C | 18.6°C | 16.3°C | 26.1°C | 10.3°C | 208 mm | 80% | 4.2 m/s | 3 |
| 2015 | 21.9°C | 19.5°C | 17.2°C | 25.0°C | 10.7°C | 27 mm | 82% | 3.6 m/s | 3.7 |
| 2014 | 20.6°C | 18.0°C | 15.4°C | 24.7°C | 9.4°C | 127 mm | 83% | 3.7 m/s | 3.3 |
| 2013 | 23.2°C | 20.9°C | 18.5°C | 25.1°C | 12.7°C | 13 mm | 83% | 3.3 m/s | 3.7 |
| 2012 | 21.3°C | 18.7°C | 16.1°C | 23.8°C | 7.3°C | 14 mm | 78% | 3.3 m/s | 4 |
| 2011 | 19.9°C | 17.3°C | 14.7°C | 22.0°C | 6.8°C | 60 mm | 82% | 3.5 m/s | 3.6 |
| 2010 | 18.5°C | 15.9°C | 13.4°C | 23.6°C | 4.7°C | 55 mm | 79% | 4.2 m/s | 3.5 |
| 2009 | 20.8°C | 18.1°C | 15.4°C | 23.8°C | 7.8°C | 16 mm | 78% | 3.6 m/s | 4 |
| 2008 | 22.0°C | 19.2°C | 16.3°C | 24.2°C | 5.5°C | 34 mm | 81% | 4.1 m/s | 3.6 |
| 2007 | 23.2°C | 20.8°C | 18.5°C | 25.4°C | 11.3°C | 18 mm | 80% | 3.9 m/s | 3.6 |
| 2006 | 21.4°C | 19.0°C | 16.6°C | 23.9°C | 10.5°C | 19 mm | 81% | 4.1 m/s | 3.9 |
| 2005 | 21.2°C | 18.6°C | 16.1°C | 24.2°C | 7.1°C | 68 mm | 83% | 3.8 m/s | 3.8 |
| 2004 | 20.6°C | 17.9°C | 15.3°C | 23.5°C | 8.8°C | 94 mm | 83% | 3.8 m/s | 3.7 |
| 2003 | 18.8°C | 15.7°C | 12.7°C | 22.7°C | 3.6°C | 25 mm | 77% | 4.1 m/s | 4 |
| 2002 | 21.9°C | 19.4°C | 17.0°C | 25.5°C | 8.8°C | 48 mm | 83% | 3.2 m/s | 3.8 |
| 2001 | 19.5°C | 16.5°C | 13.5°C | 23.4°C | 7.5°C | 16 mm | 75% | 4 m/s | 4 |
| 2000 | 21.8°C | 19.2°C | 16.6°C | 24.3°C | 8.9°C | 28 mm | 80% | 4.2 m/s | 4 |
| 1999 | 22.7°C | 20.1°C | 17.5°C | 24.7°C | 7.1°C | 67 mm | 82% | 4.2 m/s | 3.8 |
| 1998 | 22.1°C | 20.0°C | 17.8°C | 24.7°C | 10.3°C | 55 mm | 81% | 4.5 m/s | 3.3 |
| 1997 | 21.9°C | 19.6°C | 17.3°C | 24.7°C | 7.7°C | 36 mm | 80% | 3.8 m/s | 3.9 |
| 1996 | 20.5°C | 18.0°C | 15.5°C | 23.4°C | 6.7°C | 51 mm | 83% | 4.3 m/s | 3.6 |
| 1995 | 20.5°C | 18.0°C | 15.5°C | 23.7°C | 9.5°C | 87 mm | 81% | 4.2 m/s | 3.4 |
| 1994 | 21.3°C | 18.9°C | 16.5°C | 23.8°C | 10.9°C | 77 mm | 85% | 4.8 m/s | 3.1 |
| 1993 🔥 | 23.3°C | 21.5°C | 19.6°C | 25.2°C | 12.7°C | 159 mm | 86% | 4 m/s | 3.3 |
| 1992 | 20.6°C | 18.3°C | 15.9°C | 23.3°C | 9.3°C | 48 mm | 83% | 4.2 m/s | 3.4 |
| 1991 | 23.3°C | 21.3°C | 19.3°C | 25.1°C | 13.1°C | 142 mm | 85% | 3.8 m/s | 3.5 |
| 1990 | 22.9°C | 20.3°C | 17.7°C | 25.1°C | 10.1°C | 11 mm | 83% | 3.6 m/s | 3.7 |
| 1989 | 23.7°C | 21.2°C | 18.7°C | 25.0°C | 12.6°C | 36 mm | 80% | 3.4 m/s | 3.9 |
| 1988 | 20.6°C | 18.0°C | 15.5°C | 23.3°C | 7.8°C | 58 mm | 82% | 4.8 m/s | 2.9 |
| 1987 | 21.2°C | 18.7°C | 16.3°C | 24.6°C | 9.6°C | 48 mm | 79% | 4.5 m/s | 3.7 |
| 1986 | 21.2°C | 18.5°C | 15.8°C | 23.4°C | 5.8°C | 56 mm | 78% | 4 m/s | 3.5 |
| 1985 | 19.8°C | 17.1°C | 14.5°C | 24.0°C | 4.5°C | 39 mm | 75% | 4.3 m/s | 3.9 |
| 1984 | 19.9°C | 17.5°C | 15.0°C | 23.0°C | 9.5°C | 22 mm | 86% | 4.3 m/s | 3.3 |
| 1983 | 20.2°C | 17.9°C | 15.6°C | 24.1°C | 8.7°C | 130 mm | 81% | 3.8 m/s | — |
| 1982 | 21.3°C | 18.7°C | 16.0°C | 24.7°C | 5.8°C | 24 mm | 77% | 3.6 m/s | — |
| 1981 ❄️ | 18.5°C | 15.6°C | 12.7°C | 22.4°C | 4.8°C | 18 mm | 69% | 4.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 21.2°C with lows near 16.2°C (mean 18.7°C), based on 45 years of NASA POWER data.
January averages 53 mm of rainfall in Naples, one of the drier months. The wettest on record was 208 mm in 2016.
The hottest January reached 26.1°C in 2016. The coldest dipped to 3.6°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.3°C. Daytime highs moved from 19.9°C to 21.1°C and overnight lows from 14.8°C to 16.2°C over the same span.
January is one of the cooler months of the year in Naples and one of the drier months, so plan for around 21.2°C daytime highs and 16.2°C at night.
Yes — January is the coldest month of the year in Naples, averaging 18.7°C.
For January in Naples, pack light layers you can adjust through the day, with typical highs of 21.2°C and lows of 16.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 81% — quite humid.
Average wind speed in January is 4 m/s. The windiest January on record averaged 4.8 m/s (1988).
The wettest January on record was 2016 with 208 mm. On average, January sees 53 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 Naples 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.
