March is one of the cooler months of the year in Upper Siang, with average highs near 23.5°C and lows around 3.9°C (mean 13.7°C). It is one of the drier months, averaging 69 mm of rainfall and 73% relative humidity across the period.
March is one of the cooler months of the year in Upper Siang. Across 45 years of records, the warmest March in Upper Siang was 2010 — when the month averaged 16.2°C — while the coldest was 1997 at 11.8°C. Typical March days reach 23.5°C with nights near 3.9°C. The long-term trend is warming, about 0.4°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.2°C | 12.9°C | 13.8°C | 14.4°C | 14.3°C | +1.1°C |
| Avg High | 22.9°C | 22.9°C | 23.7°C | 24.1°C | 23.9°C | +1°C |
| Avg Low | 3.4°C | 2.8°C | 4.0°C | 4.7°C | 4.8°C | +1.4°C |
| Avg Rain | 62 mm | 67 mm | 64 mm | 80 mm | 71 mm | +9 mm |
March temperatures in Upper Siang have risen by about 1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of 1.7°C (1987) to a record high of 27.4°C (2010).
Rainfall in March is one of the drier months, averaging 69 mm, with a wettest year of 137 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A good time to visit Upper Siang
March is a good time to visit Upper Siang, with days averaging 23.5°C and nights around 3.9°C (mean 13.7°C, cooler than Upper Siang's yearly average) and moderate rainfall. October and November are marginally more temperate, but March still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 23.1°C | 3.9°C | 13.5°C | 69 mm | 80% | 0.4 m/s | 2.5 |
| 2024 | 23.3°C | 5.8°C | 14.5°C | 83 mm | 77% | 0.4 m/s | 3.1 |
| 2023 | 23.4°C | 4.0°C | 13.7°C | 105 mm | 80% | 0.4 m/s | 3.2 |
| 2022 | 26.0°C | 2.4°C | 14.2°C | 73 mm | 72% | 0.5 m/s | 4.3 |
| 2021 | 24.0°C | 5.9°C | 15.0°C | 62 mm | 78% | 0.4 m/s | 3.5 |
| 2020 | 23.5°C | 6.7°C | 15.1°C | 35 mm | 78% | 0.4 m/s | 3.6 |
| 2019 | 22.8°C | 2.3°C | 12.6°C | 52 mm | 79% | 0.4 m/s | 3.6 |
| 2018 | 22.7°C | 3.8°C | 13.3°C | 105 mm | 77% | 0.4 m/s | 3.6 |
| 2017 | 24.8°C | 5.5°C | 15.2°C | 101 mm | 81% | 0.4 m/s | 3.1 |
| 2016 | 24.7°C | 4.0°C | 14.3°C | 69 mm | 81% | 0.3 m/s | 3.4 |
| 2015 | 24.3°C | 7.1°C | 15.7°C | 41 mm | 77% | 0.4 m/s | 3.7 |
| 2014 | 23.7°C | 5.7°C | 14.7°C | 32 mm | 76% | 0.4 m/s | 3.8 |
| 2013 | 24.0°C | 6.4°C | 15.2°C | 97 mm | 74% | 0.4 m/s | 3.8 |
| 2012 | 23.7°C | 3.2°C | 13.4°C | 50 mm | 74% | 0.4 m/s | 3.6 |
| 2011 | 23.0°C | 3.8°C | 13.4°C | 118 mm | 78% | 0.4 m/s | 3.2 |
| 2010 🔥 | 27.4°C | 5.1°C | 16.2°C | 134 mm | 76% | 0.4 m/s | 2.9 |
| 2009 | 23.6°C | 2.8°C | 13.2°C | 34 mm | 70% | 0.5 m/s | 3.6 |
| 2008 | 21.5°C | 4.6°C | 13.1°C | 126 mm | 75% | 0.4 m/s | 3 |
| 2007 | 25.5°C | 3.5°C | 14.5°C | 30 mm | 68% | 0.5 m/s | 4 |
| 2006 | 22.8°C | 4.7°C | 13.7°C | 54 mm | 68% | 0.5 m/s | 3.3 |
| 2005 🌧️ | 22.5°C | 6.1°C | 14.3°C | 137 mm | 82% | 0.4 m/s | 2.5 |
| 2004 | 23.8°C | 4.4°C | 14.1°C | 108 mm | 73% | 0.4 m/s | 3 |
| 2003 | 23.8°C | 3.3°C | 13.5°C | 26 mm | 71% | 0.4 m/s | 3.6 |
| 2002 | 24.0°C | 4.2°C | 14.1°C | 61 mm | 67% | 0.5 m/s | 3.5 |
| 2001 | 23.2°C | 4.0°C | 13.6°C | 34 mm | 61% | 0.5 m/s | 3.8 |
| 2000 | 26.0°C | 2.0°C | 14.0°C | 34 mm | 66% | 0.5 m/s | 3.9 |
| 1999 | 23.8°C | 3.6°C | 13.7°C | 28 mm | 56% | 0.6 m/s | 3.6 |
| 1998 | 22.2°C | 2.1°C | 12.1°C | 67 mm | 70% | 0.5 m/s | 3.2 |
| 1997 ❄️ | 21.8°C | 1.9°C | 11.8°C | 97 mm | 69% | 0.5 m/s | 2.8 |
| 1996 | 21.7°C | 4.1°C | 12.9°C | 95 mm | 74% | 0.4 m/s | 3.5 |
| 1995 | 24.7°C | 2.1°C | 13.4°C | 46 mm | 62% | 0.5 m/s | 3.3 |
| 1994 | 22.6°C | 2.7°C | 12.6°C | 132 mm | 70% | 0.5 m/s | 3 |
| 1993 | 22.2°C | 2.7°C | 12.5°C | 55 mm | 69% | 0.5 m/s | 3.5 |
| 1992 | 23.5°C | 1.8°C | 12.6°C | 84 mm | 71% | 0.5 m/s | 3.3 |
| 1991 | 24.2°C | 4.7°C | 14.5°C | 27 mm | 67% | 0.5 m/s | 3.5 |
| 1990 | 22.5°C | 2.7°C | 12.6°C | 43 mm | 75% | 0.4 m/s | 3.1 |
| 1989 | 23.4°C | 4.0°C | 13.7°C | 25 mm | 68% | 0.5 m/s | 3.5 |
| 1988 | 21.7°C | 4.6°C | 13.1°C | 90 mm | 74% | 0.4 m/s | 3.1 |
| 1987 | 23.9°C | 1.7°C | 12.8°C | 61 mm | 73% | 0.4 m/s | 3.3 |
| 1986 | 23.4°C | 2.1°C | 12.7°C | 36 mm | 68% | 0.5 m/s | 3.5 |
| 1985 | 22.1°C | 4.6°C | 13.4°C | 103 mm | 73% | 0.5 m/s | 2.5 |
| 1984 | 23.5°C | 3.8°C | 13.6°C | 35 mm | 62% | 0.5 m/s | 3.2 |
| 1983 | 22.7°C | 2.1°C | 12.4°C | 22 mm | 69% | 0.5 m/s | — |
| 1982 | 23.2°C | 3.8°C | 13.5°C | 52 mm | 75% | 0.4 m/s | — |
| 1981 | 22.1°C | 4.3°C | 13.2°C | 137 mm | 79% | 0.4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 23.5°C with lows near 3.9°C (mean 13.7°C), based on 45 years of NASA POWER data.
March averages 69 mm of rainfall in Upper Siang, one of the drier months. The wettest on record was 137 mm in 2005.
The hottest March reached 27.4°C in 2010. The coldest dipped to 1.7°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1°C. Daytime highs moved from 22.7°C to 24°C and overnight lows from 3.7°C to 4.4°C over the same span.
March is one of the cooler months of the year in Upper Siang and one of the drier months, so plan for around 23.5°C daytime highs and 3.9°C at night.
Not quite — March is the 4th coolest month in Upper Siang, averaging 13.7°C.
For March in Upper Siang, pack warm layers and a jacket for chilly mornings, with typical highs of 23.5°C and lows of 3.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 73% — moderately humid.
Average wind speed in March is 0.4 m/s. The windiest March on record averaged 0.6 m/s (1999).
The wettest March on record was 2005 with 137 mm. On average, March sees 69 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 Upper Siang behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
