May is one of the warmer months of the year in Laredo, with average highs near 35.3°C and lows around 21.5°C (mean 28.4°C). It is a relatively wet time of year, averaging 73 mm of rainfall and 61% relative humidity across the period.
May is one of the warmer months of the year in Laredo. Across 45 years of records, the warmest May in Laredo was 2024 — when the month averaged 32.2°C — while the coldest was 1992 at 25.3°C. Typical May days reach 35.3°C with nights near 21.5°C. The long-term trend is warming, about 0.3°C per decade.
May is a relatively wet time of year in Laredo, averaging 73 mm of rainfall. The wettest May on record was 1991 with 145 mm, while the driest was 1998 at 0 mm.
Relative humidity in Laredo during May averages 61%. The most humid May was 2015 at 75%, and the least humid was 1998 at 46%.
May receives about 6.1 kWh/m²/day of solar energy in Laredo. The sunniest May was 2018 at 7 kWh/m²/day, and the cloudiest was 2015 at 5.2.
Average wind speed in Laredo during May is 3.8 m/s. The windiest May was 1996 at 5 m/s, while the calmest were 1997 and 2023 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.6°C | 28.3°C | 28.8°C | 28.1°C | 29.3°C | +1.7°C |
| Avg High | 34.5°C | 35.4°C | 35.9°C | 34.8°C | 36.0°C | +1.5°C |
| Avg Low | 20.7°C | 21.3°C | 21.7°C | 21.4°C | 22.7°C | +2°C |
| Avg Rain | 87 mm | 74 mm | 59 mm | 71 mm | 75 mm | -12 mm |
May temperatures in Laredo have risen by about 2.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 8.1°C (2013) to a record high of 44.8°C (1984).
Rainfall in May is a relatively wet time of year, averaging 73 mm, with a wettest year of 145 mm.
A good time to visit Laredo
May is a good time to visit Laredo, with days averaging 35.3°C and nights around 21.5°C (mean 28.4°C, warmer than Laredo's yearly average) and moderate rainfall. March and October 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 | 36.6°C | 29.7°C | 22.9°C | 42.0°C | 17.4°C | 50 mm | 59% | 3.5 m/s | 6.1 |
| 2024 🔥 | 39.4°C | 32.2°C | 24.9°C | 43.8°C | 20.4°C | 44 mm | 59% | 3.6 m/s | 5.6 |
| 2023 | 33.6°C | 27.7°C | 21.7°C | 38.7°C | 16.0°C | 51 mm | 68% | 2.9 m/s | 5.7 |
| 2022 | 37.9°C | 30.5°C | 23.2°C | 43.4°C | 21.1°C | 59 mm | 60% | 4.3 m/s | 6.6 |
| 2021 | 33.7°C | 27.4°C | 21.2°C | 40.7°C | 16.4°C | 107 mm | 67% | 3.8 m/s | 6.1 |
| 2020 | 34.8°C | 28.4°C | 22.0°C | 40.1°C | 17.2°C | 141 mm | 64% | 3.7 m/s | 6.3 |
| 2019 | 34.8°C | 28.5°C | 22.3°C | 39.9°C | 16.2°C | 74 mm | 67% | 4.1 m/s | 5.6 |
| 2018 | 36.7°C | 29.5°C | 22.3°C | 41.8°C | 17.6°C | 34 mm | 56% | 3.9 m/s | 7 |
| 2017 | 35.1°C | 28.2°C | 21.3°C | 40.7°C | 14.5°C | 76 mm | 58% | 3.7 m/s | 6 |
| 2016 | 33.5°C | 27.7°C | 21.8°C | 40.3°C | 16.1°C | 106 mm | 67% | 3.4 m/s | 5.3 |
| 2015 | 32.0°C | 27.0°C | 22.0°C | 39.4°C | 13.1°C | 126 mm | 75% | 4.1 m/s | 5.2 |
| 2014 | 33.9°C | 26.8°C | 19.7°C | 39.4°C | 11.1°C | 67 mm | 57% | 4.1 m/s | 6.2 |
| 2013 | 33.7°C | 26.8°C | 20.0°C | 39.6°C | 8.1°C | 72 mm | 63% | 4 m/s | 5.8 |
| 2012 | 36.2°C | 28.9°C | 21.5°C | 42.4°C | 16.9°C | 59 mm | 57% | 3.8 m/s | 6.5 |
| 2011 | 37.3°C | 29.6°C | 21.9°C | 43.4°C | 11.6°C | 23 mm | 51% | 4.3 m/s | 6.4 |
| 2010 | 34.6°C | 27.8°C | 21.1°C | 38.7°C | 13.1°C | 70 mm | 63% | 4 m/s | 6.2 |
| 2009 | 35.9°C | 28.8°C | 21.7°C | 42.5°C | 15.4°C | 72 mm | 57% | 3.7 m/s | 6.4 |
| 2008 | 36.6°C | 29.1°C | 21.6°C | 41.4°C | 16.1°C | 53 mm | 54% | 3.7 m/s | 6.5 |
| 2007 | 32.9°C | 27.0°C | 21.0°C | 39.3°C | 17.4°C | 128 mm | 67% | 3.7 m/s | 5.5 |
| 2006 | 36.7°C | 29.3°C | 21.8°C | 42.9°C | 16.8°C | 61 mm | 54% | 4 m/s | 6.9 |
| 2005 | 35.5°C | 28.4°C | 21.3°C | 40.9°C | 13.7°C | 45 mm | 57% | 3.8 m/s | 5.9 |
| 2004 | 33.5°C | 26.9°C | 20.3°C | 42.9°C | 10.3°C | 49 mm | 67% | 4.2 m/s | 6.1 |
| 2003 | 38.2°C | 30.9°C | 23.6°C | 42.7°C | 21.1°C | 37 mm | 56% | 3.8 m/s | 6 |
| 2002 | 36.7°C | 29.4°C | 22.1°C | 43.8°C | 14.2°C | 46 mm | 55% | 4.6 m/s | 6.7 |
| 2001 | 36.6°C | 28.8°C | 21.0°C | 42.8°C | 17.4°C | 30 mm | 57% | 4 m/s | 6.8 |
| 2000 | 36.2°C | 29.3°C | 22.4°C | 41.6°C | 18.0°C | 73 mm | 63% | 4.1 m/s | 6.5 |
| 1999 | 36.8°C | 29.3°C | 21.8°C | 42.4°C | 17.2°C | 71 mm | 57% | 4.2 m/s | 6.5 |
| 1998 | 40.5°C | 31.5°C | 22.6°C | 44.4°C | 17.7°C | 0 mm | 46% | 4 m/s | 6.7 |
| 1997 | 31.6°C | 25.5°C | 19.4°C | 38.3°C | 13.7°C | 109 mm | 72% | 2.9 m/s | 6.2 |
| 1996 | 38.0°C | 30.3°C | 22.6°C | 42.5°C | 14.5°C | 49 mm | 55% | 5 m/s | 6.6 |
| 1995 | 37.2°C | 29.9°C | 22.5°C | 44.1°C | 17.0°C | 71 mm | 55% | 4.2 m/s | 6.1 |
| 1994 | 34.4°C | 27.8°C | 21.3°C | 39.6°C | 13.7°C | 63 mm | 65% | 3.3 m/s | 5.9 |
| 1993 | 33.8°C | 26.7°C | 19.6°C | 38.1°C | 14.1°C | 75 mm | 61% | 3.5 m/s | 6.2 |
| 1992 ❄️ | 31.2°C | 25.3°C | 19.5°C | 38.2°C | 13.3°C | 127 mm | 72% | 3.3 m/s | 5.9 |
| 1991 🌧️ | 34.6°C | 28.1°C | 21.7°C | 40.2°C | 16.6°C | 145 mm | 67% | 3.4 m/s | 5.8 |
| 1990 | 35.7°C | 28.7°C | 21.8°C | 42.3°C | 14.9°C | 30 mm | 59% | 3.9 m/s | 5.9 |
| 1989 | 38.7°C | 30.5°C | 22.4°C | 43.6°C | 17.7°C | 3 mm | 51% | 4.4 m/s | 6.7 |
| 1988 | 35.0°C | 27.7°C | 20.3°C | 40.3°C | 16.4°C | 34 mm | 56% | 3.8 m/s | 6 |
| 1987 | 32.8°C | 26.7°C | 20.6°C | 37.7°C | 16.3°C | 136 mm | 69% | 3.4 m/s | 5.6 |
| 1986 | 34.5°C | 27.6°C | 20.8°C | 38.4°C | 14.1°C | 82 mm | 62% | 3.5 m/s | 5.6 |
| 1985 | 33.4°C | 26.9°C | 20.4°C | 39.8°C | 16.2°C | 114 mm | 67% | 3.1 m/s | 6.4 |
| 1984 | 35.0°C | 27.7°C | 20.3°C | 44.8°C | 13.9°C | 103 mm | 55% | 3.6 m/s | 6.2 |
| 1983 | 36.1°C | 28.6°C | 21.2°C | 43.1°C | 15.6°C | 52 mm | 55% | 3.9 m/s | — |
| 1982 | 32.2°C | 26.3°C | 20.4°C | 37.2°C | 14.4°C | 114 mm | 70% | 4 m/s | — |
| 1981 | 32.7°C | 26.4°C | 20.0°C | 38.7°C | 12.2°C | 144 mm | 69% | 3.3 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 35.3°C with lows near 21.5°C (mean 28.4°C), based on 45 years of NASA POWER data.
May averages 73 mm of rainfall in Laredo, a relatively wet time of year. The wettest on record was 145 mm in 1991.
The hottest May reached 44.8°C in 1984. The coldest dipped to 8.1°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 2.3°C. Daytime highs moved from 33.9°C to 36.2°C and overnight lows from 20.5°C to 22.8°C over the same span.
May is one of the warmer months of the year in Laredo and a relatively wet time of year, so plan for around 35.3°C daytime highs and 21.5°C at night.
Not quite — May is the 9th coolest month in Laredo, averaging 28.4°C.
For May in Laredo, pack light, breathable clothing and sun protection, with typical highs of 35.3°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 61% — moderately humid.
Average wind speed in May is 3.8 m/s. The windiest May on record averaged 5 m/s (1996).
The wettest May on record was 1991 with 145 mm. On average, May sees 73 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 Laredo 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.
