May is one of the warmer months of the year in Patan, with average highs near 42.8°C and lows around 26.3°C (mean 34.6°C). It is one of the drier months, averaging 9 mm of rainfall and 37% relative humidity across the period.
May is one of the warmer months of the year in Patan. Across 45 years of records, the warmest Mays in Patan were 2010 and 2024 — when the month averaged 36°C — while the coldest was 1982 at 31.1°C. Typical May days reach 42.8°C with nights near 26.3°C. The long-term trend is warming, about 0.2°C per decade.
May is one of the drier months in Patan, averaging 9 mm of rainfall. The wettest May on record was 1982 with 98 mm, while the driest were 2011, 2018 and 2022, among others at 0 mm.
Relative humidity in Patan during May averages 37%. The most humid May was 1982 at 51%, and the least humid was 1995 at 26%.
May receives about 7.3 kWh/m²/day of solar energy in Patan. The sunniest Mays were 2005 and 2013 at 7.7 kWh/m²/day, and the cloudiest was 2025 at 6.6.
Average wind speed in Patan during May is 3.8 m/s. The windiest May was 2008 at 4.7 m/s, while the calmest was 1982 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 34.0°C | 34.6°C | 34.5°C | 34.8°C | 34.8°C | +0.8°C |
| Avg High | 42.5°C | 43.0°C | 42.8°C | 43.0°C | 42.4°C | -0.1°C |
| Avg Low | 25.4°C | 26.3°C | 26.3°C | 26.6°C | 27.2°C | +1.8°C |
| Avg Rain | 13 mm | 4 mm | 9 mm | 4 mm | 19 mm | +6 mm |
May temperatures in Patan have risen by about 0.9°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 19.2°C (2003) to a record high of 48.3°C (2024).
Rainfall in May is one of the drier months, averaging 9 mm, with a wettest year of 98 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A quieter season to visit Patan
If your dates are flexible, the more temperate months of December and February tend to be the most comfortable for visiting Patan. That said, May — with days averaging 42.8°C and nights around 26.3°C (mean 34.6°C) and low rainfall (9 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 | 41.0°C | 34.3°C | 27.6°C | 46.8°C | 24.2°C | 57 mm | 44% | 2.8 m/s | 6.6 |
| 2024 | 43.8°C | 36.0°C | 28.2°C | 48.3°C | 21.7°C | 3 mm | 31% | 3.6 m/s | 7.1 |
| 2023 | 41.3°C | 33.7°C | 26.1°C | 44.8°C | 22.3°C | 13 mm | 39% | 3.4 m/s | 7.2 |
| 2022 | 43.4°C | 35.2°C | 27.0°C | 47.1°C | 24.8°C | 0 mm | 38% | 4.4 m/s | 7.1 |
| 2021 | 41.2°C | 34.0°C | 26.9°C | 44.4°C | 24.4°C | 31 mm | 41% | 3.8 m/s | 6.7 |
| 2020 | 43.5°C | 35.4°C | 27.3°C | 46.5°C | 25.7°C | 8 mm | 35% | 3.7 m/s | 7.6 |
| 2019 | 41.9°C | 33.9°C | 25.9°C | 45.2°C | 23.2°C | 4 mm | 37% | 3.4 m/s | 7.5 |
| 2018 | 43.7°C | 35.3°C | 26.9°C | 46.3°C | 23.8°C | 0 mm | 33% | 3.2 m/s | 7.4 |
| 2017 | 43.4°C | 35.2°C | 26.9°C | 45.1°C | 24.3°C | 4 mm | 35% | 3.5 m/s | 7.4 |
| 2016 | 43.6°C | 35.5°C | 27.3°C | 48.1°C | 24.8°C | 0 mm | 37% | 4.3 m/s | 7.5 |
| 2015 | 43.3°C | 35.0°C | 26.6°C | 45.3°C | 24.9°C | 10 mm | 36% | 3.7 m/s | 7.6 |
| 2014 | 42.0°C | 34.1°C | 26.3°C | 46.3°C | 24.7°C | 17 mm | 36% | 3.4 m/s | 7.5 |
| 2013 | 43.0°C | 34.6°C | 26.2°C | 45.8°C | 23.0°C | 1 mm | 34% | 4 m/s | 7.7 |
| 2012 | 42.5°C | 34.3°C | 26.0°C | 44.6°C | 21.7°C | 1 mm | 40% | 3.7 m/s | 7.6 |
| 2011 | 42.4°C | 34.5°C | 26.7°C | 43.8°C | 22.8°C | 0 mm | 41% | 4.3 m/s | 7.6 |
| 2010 🔥 | 44.4°C | 36.0°C | 27.6°C | 48.0°C | 25.5°C | 0 mm | 33% | 4.1 m/s | 7.6 |
| 2009 | 44.0°C | 35.2°C | 26.5°C | 46.7°C | 23.8°C | 3 mm | 37% | 3.9 m/s | 7.4 |
| 2008 | 42.0°C | 33.8°C | 25.6°C | 43.5°C | 23.5°C | 1 mm | 44% | 4.7 m/s | 7.5 |
| 2007 | 43.1°C | 34.8°C | 26.6°C | 45.8°C | 24.3°C | 6 mm | 37% | 3.7 m/s | 7.6 |
| 2006 | 43.4°C | 35.0°C | 26.5°C | 46.2°C | 23.2°C | 0 mm | 39% | 4.2 m/s | 7.4 |
| 2005 | 42.1°C | 34.0°C | 25.8°C | 45.3°C | 22.4°C | 8 mm | 35% | 3.4 m/s | 7.7 |
| 2004 | 41.6°C | 34.0°C | 26.4°C | 46.5°C | 20.2°C | 15 mm | 37% | 3.6 m/s | 6.8 |
| 2003 | 43.0°C | 34.2°C | 25.5°C | 45.1°C | 19.2°C | 0 mm | 34% | 4.1 m/s | 7.3 |
| 2002 | 43.9°C | 35.3°C | 26.8°C | 47.1°C | 22.5°C | 6 mm | 39% | 4.5 m/s | 7.5 |
| 2001 | 42.6°C | 34.7°C | 26.7°C | 46.3°C | 24.4°C | 17 mm | 43% | 4.6 m/s | 7.3 |
| 2000 | 41.8°C | 34.3°C | 26.9°C | 45.0°C | 24.6°C | 36 mm | 43% | 3.7 m/s | 7.1 |
| 1999 | 41.4°C | 33.6°C | 25.8°C | 46.2°C | 24.0°C | 18 mm | 43% | 4.1 m/s | 7.4 |
| 1998 | 44.2°C | 35.6°C | 27.1°C | 46.7°C | 22.2°C | 0 mm | 28% | 3.4 m/s | 7.5 |
| 1997 | 41.3°C | 33.2°C | 25.2°C | 45.0°C | 22.3°C | 7 mm | 35% | 3.7 m/s | 7.1 |
| 1996 | 42.3°C | 34.1°C | 25.8°C | 44.9°C | 22.4°C | 4 mm | 37% | 4.1 m/s | 7.3 |
| 1995 | 43.6°C | 35.1°C | 26.5°C | 47.5°C | 24.1°C | 0 mm | 26% | 3.4 m/s | 7.2 |
| 1994 | 44.0°C | 35.2°C | 26.4°C | 48.0°C | 24.0°C | 0 mm | 33% | 3.9 m/s | 7.4 |
| 1993 | 43.6°C | 34.7°C | 25.7°C | 45.6°C | 22.9°C | 0 mm | 37% | 4.2 m/s | 7.4 |
| 1992 | 43.2°C | 34.7°C | 26.2°C | 45.2°C | 23.1°C | 0 mm | 30% | 3.3 m/s | 7.4 |
| 1991 | 43.4°C | 34.8°C | 26.3°C | 46.8°C | 24.2°C | 0 mm | 33% | 3.7 m/s | 7.2 |
| 1990 | 43.1°C | 35.4°C | 27.7°C | 46.8°C | 24.8°C | 9 mm | 37% | 3.9 m/s | 7 |
| 1989 | 43.3°C | 34.3°C | 25.4°C | 47.4°C | 21.1°C | 0 mm | 28% | 3.6 m/s | 7.4 |
| 1988 | 44.2°C | 35.2°C | 26.1°C | 47.4°C | 23.4°C | 0 mm | 37% | 4.3 m/s | 7.4 |
| 1987 | 41.1°C | 33.3°C | 25.5°C | 44.3°C | 21.6°C | 1 mm | 35% | 3.4 m/s | 7.1 |
| 1986 | 43.5°C | 34.4°C | 25.3°C | 46.6°C | 22.1°C | 6 mm | 34% | 3.8 m/s | 7.4 |
| 1985 | 43.5°C | 34.6°C | 25.8°C | 45.7°C | 22.3°C | 1 mm | 33% | 3.5 m/s | 7.4 |
| 1984 | 43.5°C | 34.4°C | 25.3°C | 45.5°C | 21.5°C | 0 mm | 36% | 3.9 m/s | 7.4 |
| 1983 | 43.2°C | 34.5°C | 25.9°C | 45.6°C | 23.6°C | 1 mm | 38% | 3.8 m/s | — |
| 1982 ❄️ 🌧️ | 38.4°C | 31.1°C | 23.8°C | 42.6°C | 20.5°C | 98 mm | 51% | 2.5 m/s | — |
| 1981 | 42.1°C | 33.8°C | 25.5°C | 45.2°C | 22.9°C | 11 mm | 42% | 4.1 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 42.8°C with lows near 26.3°C (mean 34.6°C), based on 45 years of NASA POWER data.
May averages 9 mm of rainfall in Patan, one of the drier months. The wettest on record was 98 mm in 1982.
The hottest May reached 48.3°C in 2024. The coldest dipped to 19.2°C in 2003.
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 42.1°C to 42.1°C and overnight lows from 25.3°C to 27.2°C over the same span.
May is one of the warmer months of the year in Patan and one of the drier months, so plan for around 42.8°C daytime highs and 26.3°C at night.
Not quite — May is the 12th coolest month in Patan, averaging 34.6°C.
For May in Patan, pack light, breathable clothing and sun protection, with typical highs of 42.8°C and lows of 26.3°C.
Relative humidity in May averages 37% — relatively dry.
Average wind speed in May is 3.8 m/s. The windiest May on record averaged 4.7 m/s (2008).
The wettest May on record was 1982 with 98 mm. On average, May sees 9 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 Patan 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.
