May is one of the warmer months of the year in Wood Buffalo, with average highs near 14.8°C and lows around 2.4°C (mean 8.6°C). It is a relatively wet time of year, averaging 56 mm of rainfall and 71% relative humidity across the period.
May is one of the warmer months of the year in Wood Buffalo. Across 45 years of records, the warmest May in Wood Buffalo was 2023 — when the month averaged 14°C — while the coldest was 2004 at 3.5°C. Typical May days reach 14.8°C with nights near 2.4°C. The long-term May temperature trend is broadly flat.
May is a relatively wet time of year in Wood Buffalo, averaging 56 mm of rainfall. The wettest May on record was 1984 with 115 mm, while the driest was 1981 at 13 mm.
Relative humidity in Wood Buffalo during May averages 71%. The most humid May was 2022 at 81%, and the least humid was 2002 at 60%.
May receives about 5.5 kWh/m²/day of solar energy in Wood Buffalo. The sunniest May was 2015 at 6.5 kWh/m²/day, and the cloudiest were 2014 and 2024 at 4.7.
Average wind speed in Wood Buffalo during May is 0.2 m/s. The windiest Mays were 2019, 2020 and 2023, among others at 0.2 m/s, while the calmest were 2022, 2024 and 2025, among others at 0.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.5°C | 8.9°C | 7.5°C | 9.5°C | 8.7°C | +0.2°C |
| Avg High | 14.7°C | 15.4°C | 13.6°C | 15.9°C | 14.5°C | -0.2°C |
| Avg Low | 2.4°C | 2.5°C | 1.4°C | 3.1°C | 3.0°C | +0.6°C |
| Avg Rain | 74 mm | 45 mm | 56 mm | 46 mm | 67 mm | -7 mm |
May temperatures in Wood Buffalo have risen by about 0.9°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -12.6°C (2002) to a record high of 31.8°C (1995).
Rainfall in May is a relatively wet time of year, averaging 56 mm, with a wettest year of 115 mm.
A good time to visit Wood Buffalo
May is a good time to visit Wood Buffalo, with days averaging 14.8°C and nights around 2.4°C (mean 8.6°C, warmer than Wood Buffalo's yearly average) and moderate rainfall. July and August 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 | 16.8°C | 10.7°C | 4.7°C | 27.3°C | -5.0°C | 50 mm | 75% | 0.1 m/s | 5.8 |
| 2024 | 13.0°C | 7.7°C | 2.5°C | 22.0°C | -2.6°C | 103 mm | 79% | 0.1 m/s | 4.7 |
| 2023 🔥 | 20.7°C | 14.0°C | 7.3°C | 27.6°C | 0.1°C | 22 mm | 72% | 0.2 m/s | 5.6 |
| 2022 | 11.2°C | 6.3°C | 1.4°C | 18.6°C | -3.1°C | 77 mm | 81% | 0.1 m/s | 5.1 |
| 2021 | 12.8°C | 6.8°C | 0.8°C | 20.2°C | -6.2°C | 72 mm | 78% | 0.1 m/s | 6 |
| 2020 | 12.6°C | 6.9°C | 1.2°C | 21.8°C | -6.1°C | 78 mm | 77% | 0.2 m/s | 5.5 |
| 2019 | 13.4°C | 7.1°C | 0.8°C | 27.7°C | -11.0°C | 43 mm | 72% | 0.2 m/s | 6 |
| 2018 | 18.3°C | 11.6°C | 5.0°C | 30.4°C | -2.5°C | 24 mm | 69% | 0.2 m/s | 5.9 |
| 2017 | 16.1°C | 10.0°C | 3.9°C | 27.9°C | -0.4°C | 68 mm | 73% | 0.2 m/s | 5.7 |
| 2016 | 18.3°C | 11.8°C | 5.4°C | 28.5°C | -1.8°C | 43 mm | 70% | 0.2 m/s | 5.4 |
| 2015 | 16.1°C | 8.9°C | 1.7°C | 26.5°C | -5.0°C | 36 mm | 62% | 0.2 m/s | 6.5 |
| 2014 | 11.6°C | 6.4°C | 1.2°C | 23.5°C | -5.3°C | 87 mm | 76% | 0.1 m/s | 4.7 |
| 2013 | 17.4°C | 10.6°C | 3.8°C | 23.4°C | -12.6°C | 23 mm | 72% | 0.2 m/s | 6.1 |
| 2012 | 16.5°C | 9.9°C | 3.4°C | 24.6°C | -1.7°C | 44 mm | 64% | 0.1 m/s | 5.6 |
| 2011 | 17.2°C | 10.3°C | 3.5°C | 25.3°C | -1.8°C | 18 mm | 63% | 0.2 m/s | 6.3 |
| 2010 | 13.6°C | 8.0°C | 2.3°C | 21.8°C | -4.5°C | 72 mm | 72% | 0.2 m/s | 5.1 |
| 2009 | 12.2°C | 5.9°C | -0.5°C | 20.2°C | -6.4°C | 37 mm | 69% | 0.2 m/s | 5.7 |
| 2008 | 15.1°C | 8.4°C | 1.8°C | 22.8°C | -5.3°C | 33 mm | 71% | 0.1 m/s | 6 |
| 2007 | 15.4°C | 9.2°C | 3.0°C | 26.3°C | -3.3°C | 38 mm | 70% | 0.2 m/s | 5.4 |
| 2006 | 16.0°C | 10.4°C | 4.7°C | 23.0°C | -3.2°C | 66 mm | 73% | 0.1 m/s | 5 |
| 2005 | 14.5°C | 8.1°C | 1.7°C | 26.3°C | -10.6°C | 58 mm | 72% | 0.2 m/s | 6.1 |
| 2004 ❄️ | 8.8°C | 3.5°C | -1.7°C | 19.1°C | -8.0°C | 69 mm | 72% | 0.2 m/s | 5.1 |
| 2003 | 14.4°C | 8.3°C | 2.3°C | 27.3°C | -5.9°C | 67 mm | 71% | 0.2 m/s | 5.3 |
| 2002 | 12.0°C | 5.3°C | -1.3°C | 20.0°C | -12.6°C | 35 mm | 60% | 0.2 m/s | 6.1 |
| 2001 | 15.2°C | 9.2°C | 3.2°C | 24.8°C | -2.1°C | 97 mm | 70% | 0.2 m/s | 5.2 |
| 2000 | 12.6°C | 6.9°C | 1.2°C | 19.3°C | -5.2°C | 63 mm | 70% | 0.1 m/s | 5 |
| 1999 | 14.7°C | 8.6°C | 2.5°C | 27.0°C | -2.9°C | 47 mm | 66% | 0.1 m/s | 5.1 |
| 1998 | 18.3°C | 11.5°C | 4.6°C | 26.3°C | -1.5°C | 31 mm | 69% | 0.1 m/s | 6.1 |
| 1997 | 13.6°C | 7.5°C | 1.5°C | 22.0°C | -3.9°C | 47 mm | 72% | 0.1 m/s | 5.5 |
| 1996 | 11.7°C | 6.3°C | 0.8°C | 20.4°C | -9.2°C | 41 mm | 71% | 0.2 m/s | 5.4 |
| 1995 | 16.7°C | 9.1°C | 1.6°C | 31.8°C | -5.7°C | 21 mm | 60% | 0.2 m/s | 6.2 |
| 1994 | 15.5°C | 9.3°C | 3.1°C | 24.7°C | -4.8°C | 75 mm | 72% | 0.1 m/s | 5.4 |
| 1993 | 15.5°C | 8.6°C | 1.8°C | 25.0°C | -4.8°C | 46 mm | 68% | 0.1 m/s | 5.7 |
| 1992 | 13.9°C | 7.9°C | 1.9°C | 22.5°C | -4.3°C | 41 mm | 70% | 0.1 m/s | 5.3 |
| 1991 | 18.1°C | 11.2°C | 4.4°C | 27.2°C | -5.0°C | 31 mm | 66% | 0.1 m/s | 5.3 |
| 1990 | 15.8°C | 9.1°C | 2.4°C | 26.5°C | -4.9°C | 69 mm | 72% | 0.2 m/s | 6 |
| 1989 | 14.0°C | 8.0°C | 2.1°C | 24.8°C | -4.4°C | 107 mm | 75% | 0.2 m/s | 5.2 |
| 1988 | 14.5°C | 8.5°C | 2.4°C | 21.1°C | -3.7°C | 76 mm | 72% | 0.1 m/s | 5.2 |
| 1987 | 15.9°C | 9.6°C | 3.4°C | 23.2°C | -5.2°C | 55 mm | 70% | 0.1 m/s | 5.3 |
| 1986 | 15.7°C | 9.6°C | 3.6°C | 30.1°C | -5.8°C | 70 mm | 75% | 0.2 m/s | 5.5 |
| 1985 | 15.9°C | 9.5°C | 3.1°C | 25.7°C | -1.8°C | 88 mm | 74% | 0.2 m/s | 5.9 |
| 1984 🌧️ | 12.9°C | 7.4°C | 1.9°C | 20.7°C | -4.5°C | 115 mm | 72% | 0.1 m/s | 5 |
| 1983 | 11.0°C | 5.1°C | -0.8°C | 22.3°C | -6.3°C | 69 mm | 73% | 0.1 m/s | — |
| 1982 | 14.0°C | 8.1°C | 2.2°C | 23.5°C | -9.2°C | 73 mm | 75% | 0.2 m/s | — |
| 1981 | 18.2°C | 10.8°C | 3.4°C | 27.7°C | -5.8°C | 13 mm | 63% | 0.2 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.8°C with lows near 2.4°C (mean 8.6°C), based on 45 years of NASA POWER data.
May averages 56 mm of rainfall in Wood Buffalo, a relatively wet time of year. The wettest on record was 115 mm in 1984.
The hottest May reached 31.8°C in 1995. The coldest dipped to -12.6°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 0.9°C. Daytime highs moved from 14.4°C to 14.9°C and overnight lows from 2°C to 3.3°C over the same span.
May is one of the warmer months of the year in Wood Buffalo and a relatively wet time of year, so plan for around 14.8°C daytime highs and 2.4°C at night.
Not quite — May is the 8th coolest month in Wood Buffalo, averaging 8.6°C.
For May in Wood Buffalo, pack warm layers and a jacket for chilly mornings, with typical highs of 14.8°C and lows of 2.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 71% — moderately humid.
Average wind speed in May is 0.2 m/s. The windiest May on record averaged 0.2 m/s (1981).
The wettest May on record was 1984 with 115 mm. On average, May sees 56 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 Wood Buffalo 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.
