May is one of the warmer months of the year in Una, with average highs near 43.8°C and lows around 20.4°C (mean 32.1°C). It is one of the drier months, averaging 35 mm of rainfall and 26% relative humidity across the period.
May is one of the warmer months of the year in Una. Across 45 years of records, the warmest May in Una was 2010 — when the month averaged 35.3°C — while the coldest was 1982 at 27.5°C. Typical May days reach 43.8°C with nights near 20.4°C. The long-term May temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.7°C | 32.2°C | 32.6°C | 32.7°C | 30.7°C | -1°C |
| Avg High | 43.6°C | 44.2°C | 43.9°C | 44.3°C | 42.8°C | -0.8°C |
| Avg Low | 19.7°C | 20.2°C | 21.4°C | 21.2°C | 18.7°C | -1°C |
| Avg Rain | 41 mm | 18 mm | 31 mm | 30 mm | 70 mm | +29 mm |
May temperatures in Una have fallen by about 0.9°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 16.1°C (2004) to a record high of 47.5°C (1988).
Rainfall in May is one of the drier months, averaging 35 mm, with a wettest year of 150 mm.
A quieter season to visit Una
If your dates are flexible, the more temperate months of March and November tend to be the most comfortable for visiting Una. That said, May — with days averaging 43.8°C and nights around 20.4°C (mean 32.1°C) and moderate rainfall (35 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 41.7°C | 21.4°C | 31.5°C | 59 mm | 40% | 2 m/s | 6.2 |
| 2024 | 45.0°C | 16.7°C | 30.9°C | 19 mm | 31% | 2.1 m/s | 7.2 |
| 2023 | 42.0°C | 16.2°C | 29.1°C | 138 mm | 47% | 1.8 m/s | 6.4 |
| 2022 | 44.3°C | 19.4°C | 31.8°C | 59 mm | 30% | 2 m/s | 6.5 |
| 2021 | 41.3°C | 20.3°C | 30.8°C | 70 mm | 38% | 1.9 m/s | 6.4 |
| 2020 | 42.6°C | 18.1°C | 30.3°C | 72 mm | 42% | 2 m/s | 6.8 |
| 2019 | 44.3°C | 21.5°C | 32.9°C | 31 mm | 33% | 2 m/s | 7.1 |
| 2018 | 43.3°C | 19.6°C | 31.4°C | 26 mm | 25% | 2.3 m/s | 6.7 |
| 2017 | 42.7°C | 21.2°C | 32.0°C | 47 mm | 31% | 2.2 m/s | 6.8 |
| 2016 | 44.2°C | 22.3°C | 33.3°C | 103 mm | 33% | 2.3 m/s | 7 |
| 2015 | 42.8°C | 20.4°C | 31.6°C | 22 mm | 31% | 2.1 m/s | 7.4 |
| 2014 | 43.6°C | 20.5°C | 32.0°C | 30 mm | 34% | 2.2 m/s | 7 |
| 2013 | 46.2°C | 21.7°C | 33.9°C | 7 mm | 20% | 2.5 m/s | 7.4 |
| 2012 | 45.2°C | 18.1°C | 31.6°C | 3 mm | 21% | 2.1 m/s | 7.4 |
| 2011 | 44.1°C | 22.2°C | 33.1°C | 22 mm | 24% | 2 m/s | 7.4 |
| 2010 🔥 | 46.4°C | 24.2°C | 35.3°C | 13 mm | 19% | 2.4 m/s | 7.3 |
| 2009 | 44.1°C | 20.5°C | 32.3°C | 15 mm | 23% | 2 m/s | 7.1 |
| 2008 | 43.1°C | 22.8°C | 33.0°C | 95 mm | 32% | 1.8 m/s | 6.6 |
| 2007 | 42.3°C | 22.7°C | 32.5°C | 20 mm | 27% | 2.1 m/s | 6.7 |
| 2006 | 43.3°C | 24.7°C | 34.0°C | 35 mm | 26% | 1.9 m/s | 6.8 |
| 2005 | 41.7°C | 20.3°C | 31.0°C | 5 mm | 25% | 2.1 m/s | 7 |
| 2004 | 44.3°C | 16.1°C | 30.2°C | 39 mm | 27% | 2.2 m/s | 7.7 |
| 2003 | 43.4°C | 17.7°C | 30.6°C | 9 mm | 16% | 2.5 m/s | 7.5 |
| 2002 | 46.2°C | 22.5°C | 34.4°C | 12 mm | 15% | 2.4 m/s | 7.5 |
| 2001 | 45.6°C | 23.9°C | 34.7°C | 47 mm | 26% | 2.1 m/s | 7.1 |
| 2000 | 44.8°C | 22.5°C | 33.7°C | 30 mm | 23% | 2.1 m/s | 6.9 |
| 1999 | 43.4°C | 22.8°C | 33.1°C | 7 mm | 18% | 2.3 m/s | 6.7 |
| 1998 | 46.5°C | 20.3°C | 33.4°C | 8 mm | 19% | 2.5 m/s | 7.4 |
| 1997 | 42.6°C | 16.9°C | 29.8°C | 37 mm | 27% | 1.9 m/s | 7 |
| 1996 | 43.5°C | 20.9°C | 32.2°C | 12 mm | 22% | 2.2 m/s | 6.9 |
| 1995 | 44.3°C | 20.5°C | 32.4°C | 1 mm | 21% | 2.2 m/s | 7.3 |
| 1994 | 44.7°C | 20.5°C | 32.6°C | 47 mm | 24% | 2.2 m/s | 7.2 |
| 1993 | 45.6°C | 20.7°C | 33.2°C | 25 mm | 21% | 2.3 m/s | 6.8 |
| 1992 | 43.0°C | 18.9°C | 31.0°C | 32 mm | 25% | 2.4 m/s | 7.1 |
| 1991 | 43.1°C | 21.0°C | 32.0°C | 0 mm | 18% | 2.4 m/s | 6.7 |
| 1990 | 44.9°C | 19.5°C | 32.2°C | 9 mm | 26% | 2 m/s | 6.9 |
| 1989 | 44.5°C | 18.1°C | 31.3°C | 16 mm | 16% | 2.6 m/s | 7.4 |
| 1988 | 47.5°C | 23.0°C | 35.2°C | 1 mm | 12% | 2.5 m/s | 7.4 |
| 1987 | 41.6°C | 16.7°C | 29.1°C | 91 mm | 37% | 2.1 m/s | 6.2 |
| 1986 | 43.0°C | 18.6°C | 30.8°C | 24 mm | 21% | 2.4 m/s | 7 |
| 1985 | 44.5°C | 21.6°C | 33.0°C | 19 mm | 17% | 2.4 m/s | 7.4 |
| 1984 | 46.6°C | 20.6°C | 33.6°C | 1 mm | 14% | 2.4 m/s | 7.5 |
| 1983 | 41.8°C | 20.3°C | 31.1°C | 29 mm | 32% | 2.4 m/s | — |
| 1982 ❄️ 🌧️ | 38.4°C | 16.6°C | 27.5°C | 150 mm | 60% | 1.5 m/s | — |
| 1981 | 44.9°C | 21.9°C | 33.4°C | 38 mm | 25% | 2.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 43.8°C with lows near 20.4°C (mean 32.1°C), based on 45 years of NASA POWER data.
May averages 35 mm of rainfall in Una, one of the drier months. The wettest on record was 150 mm in 1982.
The hottest May reached 47.5°C in 1988. The coldest dipped to 16.1°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 0.9°C. Daytime highs moved from 43.2°C to 42.9°C and overnight lows from 20.2°C to 18.8°C over the same span.
May is one of the warmer months of the year in Una and one of the drier months, so plan for around 43.8°C daytime highs and 20.4°C at night.
Not quite — May is the 10th coolest month in Una, averaging 32.1°C.
For May in Una, pack light, breathable clothing and sun protection, with typical highs of 43.8°C and lows of 20.4°C.
Relative humidity in May averages 26% — relatively dry.
Average wind speed in May is 2.2 m/s. The windiest May on record averaged 2.6 m/s (1989).
The wettest May on record was 1982 with 150 mm. On average, May sees 35 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 Una 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.
