June is one of the warmer months of the year in Brownsville, with average highs near 34.3°C and lows around 25.4°C (mean 29.9°C). It is a relatively wet time of year, averaging 74 mm of rainfall and 70% relative humidity across the period.
June is one of the warmer months of the year in Brownsville. Across 45 years of records, the warmest June in Brownsville was 1998 — when the month averaged 31.6°C — while the coldest was 1993 at 27.8°C. Typical June days reach 34.3°C with nights near 25.4°C. The long-term trend is warming, about 0.2°C per decade.
June is a relatively wet time of year in Brownsville, averaging 74 mm of rainfall. The wettest June on record was 1993 with 221 mm, while the driest was 1982 at 5 mm.
Relative humidity in Brownsville during June averages 70%. The most humid June was 1993 at 81%, and the least humid was 2005 at 64%.
June receives about 6.6 kWh/m²/day of solar energy in Brownsville. The sunniest June was 2023 at 7.2 kWh/m²/day, and the cloudiest was 2021 at 5.8.
Average wind speed in Brownsville during June is 3.7 m/s. The windiest June was 1998 at 4.7 m/s, while the calmest were 1987 and 2016 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 29.2°C | 29.8°C | 30.0°C | 30.0°C | 30.3°C | +1.1°C |
| Avg High | 33.7°C | 34.3°C | 34.5°C | 34.3°C | 34.5°C | +0.8°C |
| Avg Low | 24.8°C | 25.3°C | 25.5°C | 25.7°C | 26.0°C | +1.2°C |
| Avg Rain | 69 mm | 66 mm | 57 mm | 98 mm | 82 mm | +13 mm |
June temperatures in Brownsville have risen by about 1.1°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 18.3°C (1984) to a record high of 42°C (2019).
Rainfall in June is a relatively wet time of year, averaging 74 mm, with a wettest year of 221 mm.
A quieter season to visit Brownsville
If your dates are flexible, the more temperate months of March and November tend to be the most comfortable for visiting Brownsville. That said, June — with days averaging 34.3°C and nights around 25.4°C (mean 29.9°C) and moderate rainfall (74 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 34.4°C | 30.3°C | 26.2°C | 36.6°C | 24.6°C | 98 mm | 73% | 3.7 m/s | 6.3 |
| 2024 | 35.7°C | 31.5°C | 27.3°C | 38.9°C | 25.6°C | 137 mm | 71% | 3.8 m/s | 6.5 |
| 2023 | 36.4°C | 31.3°C | 26.2°C | 39.8°C | 22.9°C | 20 mm | 70% | 3.8 m/s | 7.2 |
| 2022 | 35.1°C | 30.4°C | 25.7°C | 37.1°C | 22.9°C | 13 mm | 68% | 3.6 m/s | 6.9 |
| 2021 | 32.2°C | 28.7°C | 25.2°C | 35.5°C | 22.1°C | 125 mm | 78% | 3.2 m/s | 5.8 |
| 2020 | 33.2°C | 29.3°C | 25.4°C | 37.0°C | 22.1°C | 97 mm | 72% | 3.6 m/s | 6.4 |
| 2019 | 35.1°C | 30.7°C | 26.3°C | 42.0°C | 24.2°C | 134 mm | 71% | 3.6 m/s | 6.4 |
| 2018 | 33.6°C | 29.8°C | 25.9°C | 37.6°C | 24.6°C | 197 mm | 75% | 4 m/s | 6.6 |
| 2017 | 35.3°C | 30.6°C | 25.8°C | 39.4°C | 23.4°C | 38 mm | 67% | 3.5 m/s | 7 |
| 2016 | 32.9°C | 29.0°C | 25.1°C | 36.0°C | 21.2°C | 107 mm | 75% | 3 m/s | 6.6 |
| 2015 | 32.6°C | 28.8°C | 25.1°C | 34.6°C | 21.5°C | 81 mm | 74% | 3.3 m/s | 6.6 |
| 2014 | 34.6°C | 30.3°C | 26.0°C | 37.6°C | 23.2°C | 20 mm | 68% | 4.6 m/s | 6.6 |
| 2013 | 35.0°C | 30.4°C | 25.7°C | 40.2°C | 23.8°C | 29 mm | 67% | 3.9 m/s | 6.6 |
| 2012 | 35.0°C | 30.3°C | 25.6°C | 39.4°C | 23.3°C | 53 mm | 66% | 3.5 m/s | 6.6 |
| 2011 | 34.4°C | 29.8°C | 25.3°C | 36.8°C | 22.8°C | 151 mm | 68% | 4 m/s | 6.6 |
| 2010 | 34.2°C | 30.1°C | 26.1°C | 37.3°C | 24.6°C | 174 mm | 74% | 3.9 m/s | 6.7 |
| 2009 | 34.7°C | 30.0°C | 25.3°C | 37.4°C | 22.4°C | 35 mm | 69% | 3.9 m/s | 6.9 |
| 2008 | 34.6°C | 30.0°C | 25.5°C | 37.6°C | 23.8°C | 19 mm | 66% | 4.3 m/s | 7 |
| 2007 | 34.3°C | 29.9°C | 25.5°C | 36.7°C | 22.5°C | 76 mm | 70% | 3.8 m/s | 6.5 |
| 2006 | 34.6°C | 29.6°C | 24.6°C | 37.1°C | 22.2°C | 44 mm | 67% | 3.2 m/s | 6.8 |
| 2005 | 35.9°C | 31.0°C | 26.1°C | 37.8°C | 24.5°C | 11 mm | 64% | 3.8 m/s | 6.8 |
| 2004 | 32.6°C | 29.0°C | 25.4°C | 35.6°C | 24.0°C | 141 mm | 77% | 3.8 m/s | 6.3 |
| 2003 | 35.1°C | 30.5°C | 25.9°C | 37.3°C | 24.0°C | 59 mm | 71% | 3.2 m/s | 6.5 |
| 2002 | 35.0°C | 30.4°C | 25.7°C | 38.1°C | 22.4°C | 50 mm | 65% | 3.6 m/s | 6.6 |
| 2001 | 35.2°C | 30.2°C | 25.2°C | 39.6°C | 23.5°C | 65 mm | 67% | 3.4 m/s | 6.9 |
| 2000 | 33.3°C | 29.3°C | 25.3°C | 36.1°C | 23.6°C | 68 mm | 71% | 4.3 m/s | 6.2 |
| 1999 | 34.0°C | 29.9°C | 25.9°C | 36.5°C | 24.8°C | 53 mm | 70% | 3.9 m/s | 6.5 |
| 1998 🔥 | 36.6°C | 31.6°C | 26.7°C | 41.0°C | 23.9°C | 8 mm | 67% | 4.7 m/s | 7 |
| 1997 | 33.9°C | 29.3°C | 24.7°C | 35.8°C | 21.1°C | 56 mm | 71% | 3.6 m/s | 6.6 |
| 1996 | 34.7°C | 30.0°C | 25.3°C | 37.3°C | 21.5°C | 32 mm | 67% | 3.7 m/s | 6.8 |
| 1995 | 34.2°C | 29.3°C | 24.4°C | 37.3°C | 20.3°C | 62 mm | 66% | 3.6 m/s | 6.6 |
| 1994 | 34.5°C | 30.0°C | 25.5°C | 38.4°C | 24.5°C | 72 mm | 70% | 3.5 m/s | 6.1 |
| 1993 ❄️ 🌧️ | 31.1°C | 27.8°C | 24.6°C | 34.6°C | 20.9°C | 221 mm | 81% | 3.8 m/s | 5.9 |
| 1992 | 34.5°C | 29.6°C | 24.7°C | 37.0°C | 22.9°C | 36 mm | 73% | 3.4 m/s | 6.9 |
| 1991 | 34.4°C | 30.0°C | 25.7°C | 36.5°C | 24.1°C | 92 mm | 70% | 3.4 m/s | 6.1 |
| 1990 | 35.3°C | 30.6°C | 25.9°C | 37.4°C | 24.5°C | 23 mm | 66% | 4.3 m/s | 6.8 |
| 1989 | 34.8°C | 29.9°C | 25.0°C | 38.8°C | 20.1°C | 53 mm | 68% | 3.9 m/s | 6.7 |
| 1988 | 34.3°C | 29.3°C | 24.4°C | 37.9°C | 21.7°C | 50 mm | 66% | 3.1 m/s | 6.5 |
| 1987 | 32.5°C | 28.5°C | 24.5°C | 37.3°C | 22.4°C | 140 mm | 76% | 3 m/s | 6.2 |
| 1986 | 33.5°C | 29.2°C | 24.8°C | 35.7°C | 23.6°C | 83 mm | 72% | 3.2 m/s | 6.5 |
| 1985 | 32.8°C | 28.6°C | 24.4°C | 36.7°C | 20.4°C | 103 mm | 72% | 3.4 m/s | 6.2 |
| 1984 | 33.5°C | 29.0°C | 24.5°C | 37.1°C | 18.3°C | 35 mm | 68% | 4 m/s | 6.4 |
| 1983 | 34.2°C | 29.4°C | 24.6°C | 38.0°C | 20.7°C | 65 mm | 69% | 3.4 m/s | — |
| 1982 | 34.4°C | 29.9°C | 25.3°C | 37.1°C | 22.9°C | 5 mm | 69% | 4 m/s | — |
| 1981 | 33.1°C | 29.4°C | 25.7°C | 36.6°C | 23.4°C | 85 mm | 75% | 3.6 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 34.3°C with lows near 25.4°C (mean 29.9°C), based on 45 years of NASA POWER data.
June averages 74 mm of rainfall in Brownsville, a relatively wet time of year. The wettest on record was 221 mm in 1993.
The hottest June reached 42°C in 2019. The coldest dipped to 18.3°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.1°C. Daytime highs moved from 33.6°C to 34.8°C and overnight lows from 24.9°C to 26.1°C over the same span.
June is one of the warmer months of the year in Brownsville and a relatively wet time of year, so plan for around 34.3°C daytime highs and 25.4°C at night.
Not quite — June is the 10th coolest month in Brownsville, averaging 29.9°C.
For June in Brownsville, pack light, breathable clothing and sun protection, with typical highs of 34.3°C and lows of 25.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 70% — moderately humid.
Average wind speed in June is 3.7 m/s. The windiest June on record averaged 4.7 m/s (1998).
The wettest June on record was 1993 with 221 mm. On average, June sees 74 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 Brownsville behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
