July is one of the warmer months of the year in Salem, with average highs near 37°C and lows around 21.4°C (mean 29.2°C). It is about average for rainfall, averaging 63 mm of rainfall and 66% relative humidity across the period.
July is one of the warmer months of the year in Salem. Across 45 years of records, the warmest Julys in Salem were 1987 and 2017 — when the month averaged 31.2°C — while the coldest was 1991 at 27.5°C. Typical July days reach 37°C with nights near 21.4°C. The long-term July temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.4°C | 28.6°C | 29.6°C | 29.3°C | 29.2°C | -0.2°C |
| Avg High | 37.6°C | 36.2°C | 37.5°C | 37.1°C | 36.6°C | -1°C |
| Avg Low | 21.1°C | 21.1°C | 21.7°C | 21.6°C | 21.8°C | +0.7°C |
| Avg Rain | 67 mm | 51 mm | 71 mm | 53 mm | 80 mm | +14 mm |
July temperatures in Salem have risen by about 0.3°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 20°C (1982) to a record high of 39.8°C (2017).
Rainfall in July is about average for rainfall, averaging 63 mm, with a wettest year of 146 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
A good time to visit Salem
July is a good time to visit Salem, with days averaging 37°C and nights around 21.4°C (mean 29.2°C, warmer than Salem's yearly average) and moderate rainfall. January and December are marginally more temperate, but July still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 38.1°C | 21.8°C | 29.9°C | 22 mm | 63% | 3.3 m/s | 4.9 |
| 2024 | 36.5°C | 21.8°C | 29.1°C | 45 mm | 69% | 3.6 m/s | 4.6 |
| 2023 | 39.1°C | 21.8°C | 30.4°C | 51 mm | 63% | 3.4 m/s | 4.8 |
| 2022 | 36.4°C | 21.8°C | 29.1°C | 101 mm | 71% | 2.7 m/s | 5 |
| 2021 | 34.6°C | 21.6°C | 28.1°C | 118 mm | 75% | 2.6 m/s | 5.2 |
| 2020 🌧️ | 34.8°C | 22.1°C | 28.5°C | 146 mm | 75% | 2.1 m/s | 5.2 |
| 2019 | 37.8°C | 22.3°C | 30.0°C | 52 mm | 64% | 2.9 m/s | 5.2 |
| 2018 | 36.1°C | 21.4°C | 28.7°C | 74 mm | 69% | 3.4 m/s | 4.9 |
| 2017 | 39.8°C | 22.6°C | 31.2°C | 43 mm | 58% | 3.3 m/s | 5.3 |
| 2016 | 37.9°C | 20.3°C | 29.1°C | 84 mm | 66% | 3 m/s | 5.3 |
| 2015 | 37.8°C | 21.6°C | 29.7°C | 20 mm | 63% | 3.1 m/s | 5.9 |
| 2014 | 37.1°C | 22.2°C | 29.7°C | 20 mm | 62% | 3.9 m/s | 5.3 |
| 2013 | 35.6°C | 21.8°C | 28.7°C | 31 mm | 64% | 3.9 m/s | 4.7 |
| 2012 | 37.2°C | 21.6°C | 29.4°C | 63 mm | 64% | 2.9 m/s | 5.6 |
| 2011 | 36.3°C | 21.0°C | 28.7°C | 74 mm | 65% | 3.5 m/s | 5.3 |
| 2010 | 35.0°C | 21.1°C | 28.0°C | 74 mm | 71% | 2.9 m/s | 5 |
| 2009 | 38.3°C | 21.9°C | 30.1°C | 38 mm | 60% | 4.2 m/s | 5.1 |
| 2008 | 37.5°C | 21.2°C | 29.3°C | 125 mm | 65% | 2.8 m/s | 5.5 |
| 2007 | 36.5°C | 22.0°C | 29.3°C | 86 mm | 68% | 3 m/s | 4.9 |
| 2006 | 38.6°C | 22.5°C | 30.5°C | 18 mm | 60% | 4 m/s | 5.5 |
| 2005 | 37.0°C | 22.3°C | 29.7°C | 40 mm | 65% | 3.5 m/s | 5.3 |
| 2004 | 35.3°C | 20.5°C | 27.9°C | 113 mm | 74% | 2.5 m/s | 5.3 |
| 2003 | 36.0°C | 21.8°C | 28.9°C | 68 mm | 69% | 2.7 m/s | 5.1 |
| 2002 | 38.6°C | 21.5°C | 30.1°C | 12 mm | 59% | 3.5 m/s | 5.9 |
| 2001 | 38.4°C | 21.6°C | 30.0°C | 107 mm | 62% | 3.7 m/s | 5.6 |
| 2000 | 38.5°C | 22.0°C | 30.2°C | 99 mm | 60% | 3.7 m/s | 5.4 |
| 1999 | 36.0°C | 21.0°C | 28.5°C | 35 mm | 65% | 3.4 m/s | 5.4 |
| 1998 | 36.7°C | 21.8°C | 29.2°C | 74 mm | 67% | 3.1 m/s | 5.1 |
| 1997 | 37.3°C | 21.6°C | 29.4°C | 41 mm | 67% | 3.5 m/s | 4.9 |
| 1996 | 36.0°C | 20.9°C | 28.4°C | 28 mm | 69% | 3.2 m/s | 4.6 |
| 1995 | 36.0°C | 21.4°C | 28.7°C | 68 mm | 70% | 3 m/s | 4.8 |
| 1994 | 34.9°C | 21.1°C | 28.0°C | 76 mm | 68% | 3.6 m/s | 4.7 |
| 1993 | 35.8°C | 21.2°C | 28.5°C | 72 mm | 66% | 3.7 m/s | 5 |
| 1992 | 35.8°C | 21.5°C | 28.7°C | 59 mm | 70% | 3.1 m/s | 5 |
| 1991 ❄️ | 34.8°C | 20.2°C | 27.5°C | 26 mm | 67% | 3.8 m/s | 4.7 |
| 1990 | 38.3°C | 20.0°C | 29.2°C | 33 mm | 61% | 3.6 m/s | 5.2 |
| 1989 | 38.3°C | 20.7°C | 29.5°C | 99 mm | 70% | 2.8 m/s | 5.1 |
| 1988 | 36.3°C | 21.5°C | 28.9°C | 116 mm | 73% | 2.6 m/s | 4.8 |
| 1987 🔥 | 39.6°C | 22.8°C | 31.2°C | 25 mm | 56% | 3.2 m/s | 5.6 |
| 1986 | 37.8°C | 21.7°C | 29.8°C | 26 mm | 59% | 3.4 m/s | 5.4 |
| 1985 | 35.8°C | 20.6°C | 28.2°C | 41 mm | 64% | 3.1 m/s | 5.2 |
| 1984 | 36.2°C | 20.3°C | 28.2°C | 124 mm | 67% | 3.2 m/s | 5.4 |
| 1983 | 39.2°C | 21.2°C | 30.2°C | 26 mm | 60% | 3.3 m/s | — |
| 1982 | 38.8°C | 20.0°C | 29.4°C | 42 mm | 63% | 3.4 m/s | — |
| 1981 | 36.6°C | 21.4°C | 29.0°C | 104 mm | 69% | 2.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 37°C with lows near 21.4°C (mean 29.2°C), based on 45 years of NASA POWER data.
July averages 63 mm of rainfall in Salem, about average for rainfall. The wettest on record was 146 mm in 2020.
The hottest July reached 39.8°C in 2017. The coldest dipped to 20°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.3°C. Daytime highs moved from 37.3°C to 36.9°C and overnight lows from 20.7°C to 21.8°C over the same span.
July is one of the warmer months of the year in Salem and about average for rainfall, so plan for around 37°C daytime highs and 21.4°C at night.
Not quite — July is the 9th coolest month in Salem, averaging 29.2°C.
For July in Salem, pack light, breathable clothing and sun protection, with typical highs of 37°C and lows of 21.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 3.2 m/s. The windiest July on record averaged 4.2 m/s (2009).
The wettest July on record was 2020 with 146 mm. On average, July 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 Salem 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.
