July is one of the cooler months of the year in Roma, with average highs near 19.6°C and lows around 5.6°C (mean 12.6°C). It is one of the drier months, averaging 25 mm of rainfall and 66% relative humidity across the period.
July is one of the cooler months of the year in Roma. Across 45 years of records, the warmest July in Roma was 2017 — when the month averaged 15.1°C — while the coldest was 1983 at 10.3°C. Typical July days reach 19.6°C with nights near 5.6°C. The long-term trend is warming, about 0.4°C per decade.
July is one of the drier months in Roma, averaging 25 mm of rainfall. The wettest July on record was 1984 with 154 mm, while the driest were 1994, 2005 and 2007 at 0 mm.
Relative humidity in Roma during July averages 66%. The most humid July was 1983 at 81%, and the least humid was 2002 at 47%.
July receives about 3.9 kWh/m²/day of solar energy in Roma. The sunniest July was 2002 at 4.4 kWh/m²/day, and the cloudiest was 1984 at 2.6.
Average wind speed in Roma during July is 2.4 m/s. The windiest July was 2024 at 2.8 m/s, while the calmest was 2017 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.6°C | 12.6°C | 12.7°C | 13.3°C | 12.8°C | +1.2°C |
| Avg High | 18.4°C | 19.4°C | 20.0°C | 20.4°C | 19.9°C | +1.5°C |
| Avg Low | 4.9°C | 5.7°C | 5.4°C | 6.1°C | 5.7°C | +0.8°C |
| Avg Rain | 46 mm | 21 mm | 17 mm | 17 mm | 23 mm | -22 mm |
July temperatures in Roma have risen by about 1.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -2.4°C (1983) to a record high of 28.1°C (2016).
Rainfall in July is one of the drier months, averaging 25 mm, with a wettest year of 154 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.3°C per decade, widening the gap between day and night.
A quieter season to visit Roma
If your dates are flexible, the more temperate months of October and April tend to be the most comfortable for visiting Roma. That said, July — with days averaging 19.6°C and nights around 5.6°C (mean 12.6°C) and low rainfall (25 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 | 21.3°C | 13.4°C | 5.6°C | 26.0°C | 2.5°C | 10 mm | 56% | 2.6 m/s | 3.9 |
| 2024 | 19.2°C | 12.4°C | 5.6°C | 25.2°C | -0.8°C | 20 mm | 69% | 2.8 m/s | 3.6 |
| 2023 | 20.8°C | 13.8°C | 6.7°C | 26.2°C | 2.1°C | 41 mm | 68% | 2.2 m/s | 3.7 |
| 2022 | 17.9°C | 11.4°C | 4.9°C | 24.0°C | -0.2°C | 42 mm | 74% | 2.4 m/s | 3.6 |
| 2021 | 20.0°C | 12.8°C | 5.5°C | 27.5°C | -0.5°C | 21 mm | 65% | 2.7 m/s | 3.8 |
| 2020 | 20.2°C | 13.1°C | 6.0°C | 23.8°C | 1.3°C | 6 mm | 64% | 2.4 m/s | 4 |
| 2019 | 22.3°C | 14.7°C | 7.0°C | 26.0°C | 2.3°C | 1 mm | 52% | 2.2 m/s | 4 |
| 2018 | 21.8°C | 14.0°C | 6.2°C | 26.8°C | 0.6°C | 2 mm | 52% | 2.1 m/s | 4.2 |
| 2017 🔥 | 22.8°C | 15.1°C | 7.5°C | 27.7°C | 1.8°C | 20 mm | 57% | 2 m/s | 4 |
| 2016 | 20.1°C | 13.4°C | 6.8°C | 28.1°C | 0.7°C | 26 mm | 70% | 2.5 m/s | 3.6 |
| 2015 | 19.5°C | 12.5°C | 5.4°C | 25.4°C | -0.7°C | 5 mm | 69% | 2.4 m/s | 3.9 |
| 2014 | 20.4°C | 12.3°C | 4.3°C | 26.5°C | 0.0°C | 7 mm | 58% | 2.2 m/s | 4.2 |
| 2013 | 21.4°C | 14.4°C | 7.5°C | 25.0°C | 2.6°C | 16 mm | 68% | 2.5 m/s | 3.7 |
| 2012 | 17.7°C | 11.5°C | 5.3°C | 25.0°C | -0.4°C | 31 mm | 78% | 2.6 m/s | 3.9 |
| 2011 | 18.7°C | 11.5°C | 4.3°C | 24.4°C | -0.4°C | 21 mm | 70% | 2.2 m/s | 4 |
| 2010 | 19.1°C | 13.1°C | 7.1°C | 27.6°C | 0.6°C | 41 mm | 75% | 2.4 m/s | 3.2 |
| 2009 | 19.9°C | 12.6°C | 5.3°C | 26.2°C | 1.8°C | 3 mm | 65% | 2.4 m/s | 4.2 |
| 2008 | 19.4°C | 12.8°C | 6.1°C | 25.0°C | 0.4°C | 42 mm | 67% | 2.3 m/s | 3.6 |
| 2007 | 18.8°C | 11.3°C | 3.8°C | 25.3°C | -2.1°C | 0 mm | 64% | 2.3 m/s | 4.2 |
| 2006 | 20.5°C | 13.3°C | 6.1°C | 25.6°C | 0.8°C | 20 mm | 65% | 2.2 m/s | 3.6 |
| 2005 | 19.2°C | 12.5°C | 5.8°C | 23.0°C | 1.7°C | 0 mm | 75% | 2.2 m/s | 4 |
| 2004 | 20.7°C | 13.0°C | 5.4°C | 27.3°C | -1.3°C | 8 mm | 56% | 2.2 m/s | 4.1 |
| 2003 | 19.7°C | 12.7°C | 5.7°C | 23.0°C | -0.8°C | 24 mm | 68% | 2.3 m/s | 4.1 |
| 2002 | 20.8°C | 12.2°C | 3.6°C | 25.4°C | 0.1°C | 10 mm | 47% | 2.1 m/s | 4.4 |
| 2001 | 20.0°C | 13.2°C | 6.4°C | 25.6°C | 2.5°C | 64 mm | 61% | 2.4 m/s | 3.7 |
| 2000 | 20.6°C | 13.2°C | 5.9°C | 26.8°C | 0.0°C | 3 mm | 59% | 2.2 m/s | 4.1 |
| 1999 | 19.1°C | 12.8°C | 6.5°C | 24.2°C | 1.7°C | 14 mm | 73% | 2.4 m/s | 3.8 |
| 1998 | 18.9°C | 12.8°C | 6.6°C | 27.9°C | 0.5°C | 59 mm | 76% | 2.7 m/s | 3.4 |
| 1997 | 19.0°C | 12.2°C | 5.3°C | 24.2°C | 0.0°C | 5 mm | 69% | 2.2 m/s | 3.9 |
| 1996 | 18.7°C | 11.9°C | 5.1°C | 25.5°C | 0.7°C | 25 mm | 66% | 2.7 m/s | 3.9 |
| 1995 | 19.4°C | 12.0°C | 4.6°C | 25.9°C | 0.5°C | 7 mm | 61% | 2.4 m/s | 4 |
| 1994 | 20.1°C | 12.3°C | 4.5°C | 23.3°C | 0.9°C | 0 mm | 54% | 2.4 m/s | 4.2 |
| 1993 | 21.3°C | 15.0°C | 8.7°C | 26.3°C | 3.4°C | 46 mm | 72% | 2.1 m/s | 3.7 |
| 1992 | 20.3°C | 12.7°C | 5.1°C | 25.8°C | 0.0°C | 10 mm | 63% | 2.2 m/s | 4.3 |
| 1991 | 19.1°C | 11.9°C | 4.6°C | 23.6°C | -0.6°C | 33 mm | 63% | 2.3 m/s | 3.9 |
| 1990 | 18.4°C | 12.0°C | 5.7°C | 24.8°C | -0.4°C | 11 mm | 78% | 2.3 m/s | 4 |
| 1989 | 16.8°C | 10.6°C | 4.5°C | 23.2°C | -1.1°C | 16 mm | 77% | 2.4 m/s | 3.7 |
| 1988 | 20.1°C | 13.1°C | 6.1°C | 23.9°C | 0.2°C | 54 mm | 72% | 2.5 m/s | 3.8 |
| 1987 | 19.7°C | 12.1°C | 4.5°C | 26.6°C | -0.2°C | 16 mm | 60% | 2.3 m/s | 4.2 |
| 1986 | 19.5°C | 12.7°C | 5.9°C | 25.9°C | -0.3°C | 52 mm | 66% | 2.7 m/s | 3.7 |
| 1985 | 18.9°C | 12.0°C | 5.1°C | 26.2°C | 0.6°C | 56 mm | 69% | 2.3 m/s | 4.1 |
| 1984 🌧️ | 16.7°C | 10.9°C | 5.1°C | 24.0°C | -1.0°C | 154 mm | 74% | 2.5 m/s | 2.6 |
| 1983 ❄️ | 16.3°C | 10.3°C | 4.2°C | 23.8°C | -2.4°C | 13 mm | 81% | 2.3 m/s | — |
| 1982 | 18.4°C | 10.9°C | 3.3°C | 22.4°C | -1.0°C | 12 mm | 55% | 2.1 m/s | — |
| 1981 | 18.8°C | 12.1°C | 5.4°C | 26.6°C | -0.6°C | 36 mm | 73% | 2.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 19.6°C with lows near 5.6°C (mean 12.6°C), based on 45 years of NASA POWER data.
July averages 25 mm of rainfall in Roma, one of the drier months. The wettest on record was 154 mm in 1984.
The hottest July reached 28.1°C in 2016. The coldest dipped to -2.4°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.6°C. Daytime highs moved from 17.8°C to 19.8°C and overnight lows from 4.6°C to 5.7°C over the same span.
July is one of the cooler months of the year in Roma and one of the drier months, so plan for around 19.6°C daytime highs and 5.6°C at night.
Yes — July is the coldest month of the year in Roma, averaging 12.6°C.
For July in Roma, pack warm layers and a jacket for chilly mornings, with typical highs of 19.6°C and lows of 5.6°C.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 2.4 m/s. The windiest July on record averaged 2.8 m/s (2024).
The wettest July on record was 1984 with 154 mm. On average, July sees 25 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 Roma behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
