July is one of the warmer months of the year in Baytown, with average highs near 33.7°C and lows around 24.2°C (mean 29°C). It is about average for rainfall, averaging 108 mm of rainfall and 75% relative humidity across the period.
July is one of the warmer months of the year in Baytown. Across 45 years of records, the warmest July in Baytown was 2023 — when the month averaged 32.4°C — while the coldest was 2007 at 26.5°C. Typical July days reach 33.7°C with nights near 24.2°C. The long-term trend is warming, about 0.4°C per decade.
July is about average for rainfall in Baytown, averaging 108 mm of rainfall. The wettest July on record was 2024 with 304 mm, while the driest was 1993 at 19 mm.
Relative humidity in Baytown during July averages 75%. The most humid July was 2007 at 87%, and the least humid was 2000 at 61%.
July receives about 6.3 kWh/m²/day of solar energy in Baytown. The sunniest July was 2015 at 7.1 kWh/m²/day, and the cloudiest was 2007 at 5.
Average wind speed in Baytown during July is 1.4 m/s. The windiest Julys were 2009 and 2022 at 1.7 m/s, while the calmest were 1991, 1997 and 2004 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.3°C | 28.7°C | 28.9°C | 29.2°C | 30.0°C | +1.7°C |
| Avg High | 32.9°C | 33.3°C | 33.5°C | 34.1°C | 34.9°C | +2°C |
| Avg Low | 23.6°C | 24.0°C | 24.2°C | 24.3°C | 25.0°C | +1.4°C |
| Avg Rain | 105 mm | 81 mm | 125 mm | 113 mm | 125 mm | +19 mm |
July temperatures in Baytown have risen by about 1.6°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 17.4°C (1990) to a record high of 42.5°C (2023).
Rainfall in July is about average for rainfall, averaging 108 mm, with a wettest year of 304 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 good time to visit Baytown
July is a good time to visit Baytown, with days averaging 33.7°C and nights around 24.2°C (mean 29°C, warmer than Baytown's yearly average) and higher rainfall. October and April are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 34.8°C | 29.7°C | 24.5°C | 39.3°C | 21.9°C | 80 mm | 74% | 1.3 m/s | 6.4 |
| 2024 🌧️ | 32.8°C | 28.7°C | 24.7°C | 38.4°C | 23.0°C | 304 mm | 81% | 1.2 m/s | 5.2 |
| 2023 🔥 | 38.8°C | 32.4°C | 25.9°C | 42.5°C | 23.8°C | 42 mm | 63% | 1.6 m/s | 7 |
| 2022 | 37.2°C | 31.5°C | 25.7°C | 39.8°C | 24.1°C | 62 mm | 66% | 1.7 m/s | 6.8 |
| 2021 | 31.8°C | 27.9°C | 24.0°C | 35.0°C | 22.2°C | 154 mm | 82% | 1.2 m/s | 6 |
| 2020 | 34.1°C | 29.5°C | 24.9°C | 38.4°C | 23.1°C | 106 mm | 77% | 1.6 m/s | 6.2 |
| 2019 | 34.6°C | 29.4°C | 24.2°C | 37.2°C | 19.1°C | 52 mm | 73% | 1.5 m/s | 6.2 |
| 2018 | 35.2°C | 29.4°C | 23.7°C | 39.8°C | 21.7°C | 137 mm | 72% | 1.2 m/s | 6.4 |
| 2017 | 33.7°C | 29.0°C | 24.3°C | 37.4°C | 20.4°C | 119 mm | 77% | 1.2 m/s | 6.3 |
| 2016 | 33.5°C | 29.2°C | 24.9°C | 36.9°C | 23.8°C | 91 mm | 78% | 1.4 m/s | 6.6 |
| 2015 | 33.9°C | 29.0°C | 24.0°C | 38.6°C | 20.7°C | 24 mm | 78% | 1.4 m/s | 7.1 |
| 2014 | 34.5°C | 29.1°C | 23.8°C | 38.1°C | 22.1°C | 108 mm | 73% | 1.2 m/s | 6.2 |
| 2013 | 35.0°C | 29.5°C | 24.0°C | 39.1°C | 20.3°C | 87 mm | 67% | 1.5 m/s | 6.1 |
| 2012 | 32.0°C | 28.0°C | 24.0°C | 36.2°C | 22.8°C | 201 mm | 80% | 1.2 m/s | 5.8 |
| 2011 | 36.4°C | 30.8°C | 25.3°C | 39.7°C | 24.2°C | 88 mm | 65% | 1.5 m/s | 6.3 |
| 2010 | 32.3°C | 28.4°C | 24.5°C | 36.2°C | 22.6°C | 220 mm | 81% | 1.3 m/s | 5.9 |
| 2009 | 36.8°C | 31.1°C | 25.3°C | 39.8°C | 23.7°C | 94 mm | 67% | 1.7 m/s | 6.2 |
| 2008 | 35.0°C | 29.4°C | 23.9°C | 37.6°C | 20.8°C | 82 mm | 69% | 1.5 m/s | 6.6 |
| 2007 ❄️ | 29.5°C | 26.5°C | 23.4°C | 33.2°C | 19.5°C | 229 mm | 87% | 1.2 m/s | 5 |
| 2006 | 31.3°C | 27.7°C | 24.1°C | 35.2°C | 22.8°C | 242 mm | 83% | 1.2 m/s | 5.5 |
| 2005 | 35.1°C | 30.0°C | 24.9°C | 40.2°C | 21.0°C | 143 mm | 71% | 1.3 m/s | 6.3 |
| 2004 | 32.3°C | 28.0°C | 23.7°C | 35.1°C | 22.0°C | 84 mm | 81% | 1.1 m/s | 6.6 |
| 2003 | 32.2°C | 28.2°C | 24.2°C | 35.4°C | 22.8°C | 130 mm | 80% | 1.3 m/s | 5.9 |
| 2002 | 32.4°C | 28.3°C | 24.1°C | 36.3°C | 22.7°C | 131 mm | 80% | 1.3 m/s | 6.2 |
| 2001 | 33.0°C | 28.6°C | 24.1°C | 37.4°C | 22.1°C | 71 mm | 79% | 1.2 m/s | 6.4 |
| 2000 | 37.3°C | 30.9°C | 24.5°C | 42.0°C | 21.5°C | 46 mm | 61% | 1.6 m/s | 6.9 |
| 1999 | 32.5°C | 28.2°C | 24.0°C | 36.3°C | 22.6°C | 116 mm | 79% | 1.3 m/s | 6.2 |
| 1998 | 36.4°C | 30.8°C | 25.1°C | 40.1°C | 23.6°C | 47 mm | 69% | 1.6 m/s | 6.8 |
| 1997 | 34.5°C | 29.3°C | 24.2°C | 36.5°C | 21.6°C | 68 mm | 74% | 1.1 m/s | 6.7 |
| 1996 | 34.5°C | 29.6°C | 24.6°C | 36.9°C | 23.0°C | 56 mm | 71% | 1.4 m/s | 6.6 |
| 1995 | 33.0°C | 28.5°C | 24.0°C | 39.0°C | 21.8°C | 143 mm | 77% | 1.5 m/s | 6.4 |
| 1994 | 33.6°C | 28.7°C | 23.7°C | 37.6°C | 19.3°C | 53 mm | 73% | 1.5 m/s | 6.4 |
| 1993 | 32.9°C | 28.4°C | 24.0°C | 36.4°C | 22.7°C | 19 mm | 79% | 1.4 m/s | 6.8 |
| 1992 | 31.6°C | 27.8°C | 24.0°C | 34.4°C | 22.1°C | 94 mm | 81% | 1.4 m/s | 6.2 |
| 1991 | 30.8°C | 27.2°C | 23.6°C | 34.8°C | 21.6°C | 112 mm | 84% | 1.1 m/s | 6.7 |
| 1990 | 33.2°C | 28.2°C | 23.2°C | 37.7°C | 17.4°C | 99 mm | 73% | 1.3 m/s | 5.9 |
| 1989 | 30.9°C | 27.0°C | 23.1°C | 33.0°C | 20.0°C | 126 mm | 82% | 1.3 m/s | 6 |
| 1988 | 34.1°C | 29.1°C | 24.1°C | 37.7°C | 21.7°C | 103 mm | 72% | 1.6 m/s | 5.9 |
| 1987 | 31.3°C | 27.4°C | 23.4°C | 34.3°C | 20.4°C | 124 mm | 82% | 1.3 m/s | 6.2 |
| 1986 | 34.1°C | 28.9°C | 23.8°C | 40.5°C | 22.2°C | 30 mm | 73% | 1.4 m/s | 6.7 |
| 1985 | 32.9°C | 27.9°C | 22.9°C | 37.3°C | 19.8°C | 97 mm | 75% | 1.4 m/s | 6.1 |
| 1984 | 34.5°C | 29.0°C | 23.5°C | 37.7°C | 20.2°C | 78 mm | 68% | 1.4 m/s | 6.4 |
| 1983 | 31.8°C | 27.7°C | 23.6°C | 34.3°C | 21.3°C | 180 mm | 80% | 1.4 m/s | — |
| 1982 | 34.6°C | 29.3°C | 24.1°C | 37.2°C | 22.8°C | 61 mm | 71% | 1.4 m/s | — |
| 1981 | 32.0°C | 28.0°C | 24.0°C | 35.3°C | 22.7°C | 150 mm | 82% | 1.3 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 33.7°C with lows near 24.2°C (mean 29°C), based on 45 years of NASA POWER data.
July averages 108 mm of rainfall in Baytown, about average for rainfall. The wettest on record was 304 mm in 2024.
The hottest July reached 42.5°C in 2023. The coldest dipped to 17.4°C in 1990.
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 33.2°C to 35.1°C and overnight lows from 23.6°C to 25°C over the same span.
July is one of the warmer months of the year in Baytown and about average for rainfall, so plan for around 33.7°C daytime highs and 24.2°C at night.
Not quite — July is the 11th coolest month in Baytown, averaging 29°C.
For July in Baytown, pack light, breathable clothing and sun protection, with typical highs of 33.7°C and lows of 24.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 75% — quite humid.
Average wind speed in July is 1.4 m/s. The windiest July on record averaged 1.7 m/s (2009).
The wettest July on record was 2024 with 304 mm. On average, July sees 108 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 Baytown 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.
