May is one of the warmer months of the year in Naples, with average highs near 28.2°C and lows around 24.2°C (mean 26.2°C). It is one of the drier months, averaging 92 mm of rainfall and 74% relative humidity across the period.
May is one of the warmer months of the year in Naples. Across 45 years of records, the warmest May in Naples was 2024 — when the month averaged 28.2°C — while the coldest was 1992 at 24°C. Typical May days reach 28.2°C with nights near 24.2°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Naples, averaging 92 mm of rainfall. The wettest May on record was 2018 with 333 mm, while the driest was 1992 at 20 mm.
Relative humidity in Naples during May averages 74%. The most humid May was 2018 at 82%, and the least humid was 2011 at 69%.
May receives about 6.5 kWh/m²/day of solar energy in Naples. The sunniest May was 2024 at 7 kWh/m²/day, and the cloudiest was 2018 at 5.
Average wind speed in Naples during May is 3.3 m/s. The windiest May was 1982 at 4.2 m/s, while the calmest was 2003 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.7°C | 26.1°C | 26.1°C | 26.4°C | 27.1°C | +1.4°C |
| Avg High | 27.8°C | 28.0°C | 28.2°C | 28.3°C | 29.0°C | +1.2°C |
| Avg Low | 23.5°C | 24.1°C | 24.0°C | 24.4°C | 25.2°C | +1.7°C |
| Avg Rain | 66 mm | 84 mm | 78 mm | 127 mm | 110 mm | +44 mm |
May temperatures in Naples have risen by about 1.7°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 17.6°C (1992) to a record high of 32.6°C (1989).
Rainfall in May is one of the drier months, averaging 92 mm, with a wettest year of 333 mm.
A good time to visit Naples
May is a good time to visit Naples, with days averaging 28.2°C and nights around 24.2°C (mean 26.2°C, warmer than Naples's yearly average) and higher rainfall. March and November are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.4°C | 27.8°C | 26.1°C | 31.0°C | 23.4°C | 118 mm | 76% | 2.6 m/s | 6.5 |
| 2024 🔥 | 30.0°C | 28.2°C | 26.4°C | 31.8°C | 23.8°C | 54 mm | 76% | 2.8 m/s | 7 |
| 2023 | 28.8°C | 26.8°C | 24.7°C | 30.2°C | 22.2°C | 111 mm | 73% | 2.6 m/s | 6.8 |
| 2022 | 28.8°C | 26.9°C | 25.0°C | 30.2°C | 21.4°C | 122 mm | 75% | 3.1 m/s | 6.5 |
| 2021 | 29.1°C | 27.0°C | 24.8°C | 30.1°C | 22.2°C | 31 mm | 71% | 3.7 m/s | 6.9 |
| 2020 | 27.9°C | 26.1°C | 24.2°C | 29.4°C | 20.6°C | 223 mm | 77% | 3.4 m/s | 6.3 |
| 2019 | 29.4°C | 27.3°C | 25.2°C | 31.3°C | 23.3°C | 126 mm | 75% | 3.3 m/s | 6.8 |
| 2018 🌧️ | 27.0°C | 25.4°C | 23.8°C | 28.7°C | 22.0°C | 333 mm | 82% | 4 m/s | 5 |
| 2017 | 28.4°C | 26.5°C | 24.6°C | 30.5°C | 20.5°C | 79 mm | 74% | 3.4 m/s | 6.9 |
| 2016 | 27.9°C | 26.1°C | 24.2°C | 29.6°C | 19.5°C | 161 mm | 74% | 2.9 m/s | 6.7 |
| 2015 | 28.9°C | 26.7°C | 24.6°C | 30.7°C | 21.2°C | 66 mm | 72% | 3.3 m/s | 6.8 |
| 2014 | 28.5°C | 26.3°C | 24.1°C | 29.9°C | 20.3°C | 81 mm | 72% | 3.7 m/s | 6.7 |
| 2013 | 27.2°C | 25.3°C | 23.4°C | 29.9°C | 20.3°C | 188 mm | 75% | 3.3 m/s | 6.3 |
| 2012 | 28.2°C | 26.5°C | 24.7°C | 30.4°C | 22.8°C | 132 mm | 76% | 2.8 m/s | 6.2 |
| 2011 | 29.2°C | 27.1°C | 25.0°C | 31.4°C | 23.5°C | 51 mm | 69% | 3 m/s | 6.9 |
| 2010 | 28.5°C | 26.6°C | 24.8°C | 30.1°C | 23.9°C | 57 mm | 77% | 3.1 m/s | 6.7 |
| 2009 | 28.0°C | 26.3°C | 24.5°C | 29.7°C | 22.4°C | 227 mm | 75% | 3 m/s | 6.1 |
| 2008 | 28.7°C | 26.5°C | 24.2°C | 30.7°C | 20.8°C | 32 mm | 72% | 3.5 m/s | 6.7 |
| 2007 | 27.9°C | 25.5°C | 23.2°C | 29.4°C | 18.9°C | 66 mm | 73% | 4.1 m/s | 6.4 |
| 2006 | 27.8°C | 25.7°C | 23.6°C | 30.2°C | 20.1°C | 56 mm | 73% | 2.9 m/s | 6.6 |
| 2005 | 27.4°C | 25.5°C | 23.6°C | 30.1°C | 19.0°C | 85 mm | 76% | 2.7 m/s | 6.2 |
| 2004 | 27.8°C | 25.8°C | 23.7°C | 29.8°C | 20.6°C | 30 mm | 74% | 3.8 m/s | 6.7 |
| 2003 | 28.6°C | 27.0°C | 25.5°C | 29.9°C | 22.8°C | 119 mm | 78% | 2.5 m/s | 6.4 |
| 2002 | 29.4°C | 26.9°C | 24.5°C | 31.1°C | 22.3°C | 72 mm | 72% | 3.6 m/s | 6.5 |
| 2001 | 27.7°C | 25.3°C | 23.0°C | 29.8°C | 20.6°C | 65 mm | 73% | 3.3 m/s | 6.2 |
| 2000 | 28.9°C | 26.6°C | 24.3°C | 30.9°C | 20.7°C | 34 mm | 70% | 3.1 m/s | 6.7 |
| 1999 | 27.9°C | 25.9°C | 23.9°C | 30.2°C | 18.5°C | 76 mm | 72% | 2.9 m/s | 6.6 |
| 1998 | 28.4°C | 26.2°C | 24.0°C | 30.1°C | 20.9°C | 59 mm | 75% | 2.8 m/s | 6.6 |
| 1997 | 28.4°C | 26.4°C | 24.4°C | 30.3°C | 20.2°C | 76 mm | 75% | 3.2 m/s | 6.2 |
| 1996 | 28.1°C | 26.3°C | 24.6°C | 29.5°C | 21.2°C | 107 mm | 77% | 3.3 m/s | 6.1 |
| 1995 | 29.2°C | 27.4°C | 25.6°C | 30.2°C | 23.7°C | 71 mm | 74% | 3.1 m/s | 6.6 |
| 1994 | 28.3°C | 26.3°C | 24.3°C | 30.0°C | 19.6°C | 45 mm | 73% | 3 m/s | 6.7 |
| 1993 | 26.5°C | 24.6°C | 22.7°C | 27.7°C | 20.1°C | 77 mm | 77% | 3.9 m/s | 6.3 |
| 1992 ❄️ | 26.2°C | 24.0°C | 21.7°C | 30.0°C | 17.6°C | 20 mm | 73% | 3.2 m/s | 6.9 |
| 1991 | 28.4°C | 26.9°C | 25.4°C | 29.6°C | 24.4°C | 207 mm | 77% | 3.8 m/s | 5.7 |
| 1990 | 28.4°C | 26.5°C | 24.7°C | 29.9°C | 22.8°C | 100 mm | 76% | 3.7 m/s | 5.9 |
| 1989 | 29.0°C | 26.7°C | 24.4°C | 32.6°C | 19.9°C | 25 mm | 69% | 3.1 m/s | 6.8 |
| 1988 | 27.0°C | 24.8°C | 22.7°C | 29.0°C | 19.8°C | 54 mm | 74% | 3.2 m/s | 6.1 |
| 1987 | 27.7°C | 25.6°C | 23.5°C | 29.0°C | 21.0°C | 101 mm | 75% | 3.4 m/s | 6.5 |
| 1986 | 28.0°C | 25.7°C | 23.4°C | 30.7°C | 20.7°C | 63 mm | 72% | 3.8 m/s | 6.3 |
| 1985 | 28.4°C | 26.4°C | 24.3°C | 30.5°C | 21.9°C | 46 mm | 71% | 2.8 m/s | 6.5 |
| 1984 | 27.1°C | 25.5°C | 23.8°C | 28.8°C | 20.4°C | 105 mm | 78% | 3.6 m/s | 5.9 |
| 1983 | 26.9°C | 24.9°C | 22.9°C | 28.6°C | 19.8°C | 30 mm | 74% | 3.7 m/s | — |
| 1982 | 27.4°C | 25.3°C | 23.2°C | 28.6°C | 21.2°C | 130 mm | 73% | 4.2 m/s | — |
| 1981 | 28.7°C | 26.1°C | 23.6°C | 30.2°C | 20.5°C | 41 mm | 70% | 3.5 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 28.2°C with lows near 24.2°C (mean 26.2°C), based on 45 years of NASA POWER data.
May averages 92 mm of rainfall in Naples, one of the drier months. The wettest on record was 333 mm in 2018.
The hottest May reached 32.6°C in 1989. The coldest dipped to 17.6°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.7°C. Daytime highs moved from 27.7°C to 29.2°C and overnight lows from 23.6°C to 25.4°C over the same span.
May is one of the warmer months of the year in Naples and one of the drier months, so plan for around 28.2°C daytime highs and 24.2°C at night.
Not quite — May is the 8th coolest month in Naples, averaging 26.2°C.
For May in Naples, pack light layers you can adjust through the day, with typical highs of 28.2°C and lows of 24.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 74% — moderately humid.
Average wind speed in May is 3.3 m/s. The windiest May on record averaged 4.2 m/s (1982).
The wettest May on record was 2018 with 333 mm. On average, May sees 92 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 May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
