May is one of the warmer months of the year in Una, with average highs near 39.4°C and lows around 24.8°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 2002 — when the month averaged 35°C — while the coldest was 1982 at 26°C. Typical May days reach 39.4°C with nights near 24.8°C. The long-term May temperature trend is broadly flat.
May is one of the drier months in Una, averaging 35 mm of rainfall. The wettest May on record was 1982 with 150 mm, while the driest was 1991 at 0 mm.
Relative humidity in Una during May averages 26%. The most humid May was 1982 at 60%, and the least humid was 1988 at 12%.
May receives about 7 kWh/m²/day of solar energy in Una. The sunniest May was 2004 at 7.7 kWh/m²/day, and the cloudiest were 1987 and 2025 at 6.2.
Average wind speed in Una during May is 2.2 m/s. The windiest May was 1989 at 2.6 m/s, while the calmest was 1982 at 1.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 31.5°C | 32.3°C | 32.8°C | 32.5°C | 30.7°C | -0.8°C |
| Avg High | 39.0°C | 40.0°C | 40.1°C | 39.7°C | 37.3°C | -1.7°C |
| Avg Low | 24.0°C | 24.6°C | 25.5°C | 25.4°C | 24.1°C | +0.1°C |
| Avg Rain | 41 mm | 18 mm | 31 mm | 30 mm | 70 mm | +29 mm |
May temperatures in Una have fallen by about 0.5°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.
Daytime highs and overnight lows have shifted differently — highs fell about 0.3°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
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 39.4°C and nights around 24.8°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 | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 37.6°C | 31.5°C | 25.5°C | 41.7°C | 21.4°C | 59 mm | 40% | 2 m/s | 6.2 |
| 2024 | 39.7°C | 32.4°C | 25.1°C | 45.0°C | 16.7°C | 19 mm | 31% | 2.1 m/s | 7.2 |
| 2023 | 34.0°C | 27.7°C | 21.4°C | 42.0°C | 16.2°C | 138 mm | 47% | 1.8 m/s | 6.4 |
| 2022 | 39.4°C | 32.7°C | 25.9°C | 44.3°C | 19.4°C | 59 mm | 30% | 2 m/s | 6.5 |
| 2021 | 36.6°C | 30.1°C | 23.5°C | 41.3°C | 20.3°C | 70 mm | 38% | 1.9 m/s | 6.4 |
| 2020 | 36.2°C | 29.7°C | 23.3°C | 42.6°C | 18.1°C | 72 mm | 42% | 2 m/s | 6.8 |
| 2019 | 38.1°C | 31.0°C | 24.0°C | 44.3°C | 21.5°C | 31 mm | 33% | 2 m/s | 7.1 |
| 2018 | 39.4°C | 32.2°C | 25.1°C | 43.3°C | 19.6°C | 26 mm | 25% | 2.3 m/s | 6.7 |
| 2017 | 39.7°C | 32.9°C | 26.1°C | 42.7°C | 21.2°C | 47 mm | 31% | 2.2 m/s | 6.8 |
| 2016 | 39.8°C | 32.7°C | 25.5°C | 44.2°C | 22.3°C | 103 mm | 33% | 2.3 m/s | 7 |
| 2015 | 39.2°C | 32.3°C | 25.3°C | 42.8°C | 20.4°C | 22 mm | 31% | 2.1 m/s | 7.4 |
| 2014 | 37.8°C | 31.1°C | 24.4°C | 43.6°C | 20.5°C | 30 mm | 34% | 2.2 m/s | 7 |
| 2013 | 41.1°C | 33.6°C | 26.2°C | 46.2°C | 21.7°C | 7 mm | 20% | 2.5 m/s | 7.4 |
| 2012 | 39.4°C | 32.1°C | 24.7°C | 45.2°C | 18.1°C | 3 mm | 21% | 2.1 m/s | 7.4 |
| 2011 | 40.7°C | 33.5°C | 26.2°C | 44.1°C | 22.2°C | 22 mm | 24% | 2 m/s | 7.4 |
| 2010 | 41.4°C | 34.0°C | 26.6°C | 46.4°C | 24.2°C | 13 mm | 19% | 2.4 m/s | 7.3 |
| 2009 | 39.9°C | 32.5°C | 25.1°C | 44.1°C | 20.5°C | 15 mm | 23% | 2 m/s | 7.1 |
| 2008 | 37.8°C | 31.2°C | 24.5°C | 43.1°C | 22.8°C | 95 mm | 32% | 1.8 m/s | 6.6 |
| 2007 | 39.4°C | 32.4°C | 25.4°C | 42.3°C | 22.7°C | 20 mm | 27% | 2.1 m/s | 6.7 |
| 2006 | 41.1°C | 34.0°C | 27.0°C | 43.3°C | 24.7°C | 35 mm | 26% | 1.9 m/s | 6.8 |
| 2005 | 38.2°C | 31.1°C | 24.1°C | 41.7°C | 20.3°C | 5 mm | 25% | 2.1 m/s | 7 |
| 2004 | 39.7°C | 32.3°C | 24.8°C | 44.3°C | 16.1°C | 39 mm | 27% | 2.2 m/s | 7.7 |
| 2003 | 39.6°C | 31.8°C | 24.0°C | 43.4°C | 17.7°C | 9 mm | 16% | 2.5 m/s | 7.5 |
| 2002 🔥 | 43.0°C | 35.0°C | 27.0°C | 46.2°C | 22.5°C | 12 mm | 15% | 2.4 m/s | 7.5 |
| 2001 | 40.6°C | 33.2°C | 25.7°C | 45.6°C | 23.9°C | 47 mm | 26% | 2.1 m/s | 7.1 |
| 2000 | 41.8°C | 34.4°C | 27.0°C | 44.8°C | 22.5°C | 30 mm | 23% | 2.1 m/s | 6.9 |
| 1999 | 41.2°C | 33.5°C | 25.8°C | 43.4°C | 22.8°C | 7 mm | 18% | 2.3 m/s | 6.7 |
| 1998 | 41.5°C | 33.4°C | 25.4°C | 46.5°C | 20.3°C | 8 mm | 19% | 2.5 m/s | 7.4 |
| 1997 | 37.1°C | 29.7°C | 22.2°C | 42.6°C | 16.9°C | 37 mm | 27% | 1.9 m/s | 7 |
| 1996 | 39.0°C | 31.5°C | 23.9°C | 43.5°C | 20.9°C | 12 mm | 22% | 2.2 m/s | 6.9 |
| 1995 | 40.3°C | 32.7°C | 25.1°C | 44.3°C | 20.5°C | 1 mm | 21% | 2.2 m/s | 7.3 |
| 1994 | 40.3°C | 32.4°C | 24.4°C | 44.7°C | 20.5°C | 47 mm | 24% | 2.2 m/s | 7.2 |
| 1993 | 41.3°C | 33.3°C | 25.3°C | 45.6°C | 20.7°C | 25 mm | 21% | 2.3 m/s | 6.8 |
| 1992 | 38.4°C | 30.9°C | 23.4°C | 43.0°C | 18.9°C | 32 mm | 25% | 2.4 m/s | 7.1 |
| 1991 | 40.4°C | 32.7°C | 24.9°C | 43.1°C | 21.0°C | 0 mm | 18% | 2.4 m/s | 6.7 |
| 1990 | 40.1°C | 32.7°C | 25.3°C | 44.9°C | 19.5°C | 9 mm | 26% | 2 m/s | 6.9 |
| 1989 | 40.5°C | 32.3°C | 24.1°C | 44.5°C | 18.1°C | 16 mm | 16% | 2.6 m/s | 7.4 |
| 1988 | 43.2°C | 34.6°C | 26.1°C | 47.5°C | 23.0°C | 1 mm | 12% | 2.5 m/s | 7.4 |
| 1987 | 35.1°C | 28.4°C | 21.6°C | 41.6°C | 16.7°C | 91 mm | 37% | 2.1 m/s | 6.2 |
| 1986 | 39.1°C | 31.2°C | 23.4°C | 43.0°C | 18.6°C | 24 mm | 21% | 2.4 m/s | 7 |
| 1985 | 40.7°C | 32.8°C | 24.9°C | 44.5°C | 21.6°C | 19 mm | 17% | 2.4 m/s | 7.4 |
| 1984 | 43.2°C | 34.6°C | 26.1°C | 46.6°C | 20.6°C | 1 mm | 14% | 2.4 m/s | 7.5 |
| 1983 | 37.5°C | 30.8°C | 24.0°C | 41.8°C | 20.3°C | 29 mm | 32% | 2.4 m/s | — |
| 1982 ❄️ 🌧️ | 31.4°C | 26.0°C | 20.7°C | 38.4°C | 16.6°C | 150 mm | 60% | 1.5 m/s | — |
| 1981 | 40.7°C | 32.7°C | 24.7°C | 44.9°C | 21.9°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 39.4°C with lows near 24.8°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 0.5°C — but days and nights have moved in opposite directions. Overnight lows rose from 24.1°C to 24.3°C while daytime highs eased from 38.7°C to 37.5°C, narrowing the gap between day and night.
May is one of the warmer months of the year in Una and one of the drier months, so plan for around 39.4°C daytime highs and 24.8°C at night.
Not quite — May is the 11th coolest month in Una, averaging 32.1°C.
For May in Una, pack light, breathable clothing and sun protection, with typical highs of 39.4°C and lows of 24.8°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.
