January is one of the cooler months of the year in East Siang, with average highs near 22.2°C and lows around 11.4°C (mean 16.8°C). It is one of the drier months, averaging 19 mm of rainfall and 64% relative humidity across the period.
January is one of the cooler months of the year in East Siang. Across 45 years of records, the warmest January in East Siang was 2017 — when the month averaged 19.2°C — while the coldest was 1993 at 14.7°C. Typical January days reach 22.2°C with nights near 11.4°C. The long-term trend is warming, about 0.3°C per decade.
January is one of the drier months in East Siang, averaging 19 mm of rainfall. The wettest January on record was 2020 with 52 mm, while the driest was 2010 at 0 mm.
Relative humidity in East Siang during January averages 64%. The most humid January was 2020 at 74%, and the least humid was 1999 at 49%.
January receives about 3.2 kWh/m²/day of solar energy in East Siang. The sunniest January was 2010 at 4 kWh/m²/day, and the cloudiest were 2008 and 2012 at 2.5.
Average wind speed in East Siang during January is 0.7 m/s. The windiest January was 1999 at 0.8 m/s, while the calmest was 2015 at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.6°C | 16.3°C | 16.5°C | 17.4°C | 17.2°C | +0.6°C |
| Avg High | 22.1°C | 21.9°C | 22.0°C | 22.7°C | 22.1°C | 0°C |
| Avg Low | 11.0°C | 10.6°C | 11.1°C | 12.1°C | 12.4°C | +1.4°C |
| Avg Rain | 15 mm | 22 mm | 23 mm | 12 mm | 27 mm | +12 mm |
January temperatures in East Siang have risen by about 1.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 6.9°C (1999) to a record high of 30.1°C (2015).
Rainfall in January is one of the drier months, averaging 19 mm, with a wettest year of 52 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit East Siang
January is a good time to visit East Siang, with days averaging 22.2°C and nights around 11.4°C (mean 16.8°C, cooler than East Siang's yearly average) and low rainfall. November and March are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 22.5°C | 17.8°C | 13.1°C | 25.1°C | 11.3°C | 34 mm | 71% | 0.6 m/s | 3.2 |
| 2024 | 22.8°C | 17.4°C | 11.9°C | 27.1°C | 10.2°C | 10 mm | 65% | 0.7 m/s | 3.4 |
| 2023 | 22.3°C | 17.2°C | 12.1°C | 26.9°C | 9.5°C | 7 mm | 65% | 0.6 m/s | 3 |
| 2022 | 21.9°C | 16.8°C | 11.7°C | 26.4°C | 9.4°C | 40 mm | 69% | 0.6 m/s | 3.1 |
| 2021 | 22.2°C | 17.7°C | 13.2°C | 26.1°C | 11.1°C | 19 mm | 71% | 0.6 m/s | 2.9 |
| 2020 🌧️ | 20.9°C | 16.5°C | 12.1°C | 26.7°C | 9.6°C | 52 mm | 74% | 0.6 m/s | 2.7 |
| 2019 | 24.5°C | 18.3°C | 12.2°C | 28.1°C | 9.3°C | 17 mm | 61% | 0.7 m/s | 3.7 |
| 2018 | 22.1°C | 17.4°C | 12.7°C | 26.3°C | 10.2°C | 21 mm | 72% | 0.6 m/s | 3 |
| 2017 🔥 | 25.1°C | 19.2°C | 13.4°C | 29.9°C | 11.1°C | 3 mm | 60% | 0.7 m/s | 3.8 |
| 2016 | 22.3°C | 17.1°C | 12.0°C | 28.6°C | 10.5°C | 22 mm | 71% | 0.6 m/s | 3.3 |
| 2015 | 24.3°C | 18.9°C | 13.5°C | 30.1°C | 11.7°C | 9 mm | 69% | 0.5 m/s | 3.5 |
| 2014 | 22.6°C | 17.6°C | 12.6°C | 27.5°C | 8.9°C | 3 mm | 69% | 0.6 m/s | 3.6 |
| 2013 | 23.3°C | 17.7°C | 12.1°C | 28.6°C | 7.3°C | 6 mm | 66% | 0.6 m/s | 3.5 |
| 2012 | 20.1°C | 15.2°C | 10.3°C | 26.0°C | 7.6°C | 19 mm | 67% | 0.6 m/s | 2.5 |
| 2011 | 19.8°C | 15.0°C | 10.3°C | 25.4°C | 6.9°C | 18 mm | 69% | 0.7 m/s | 2.8 |
| 2010 | 23.3°C | 17.3°C | 11.4°C | 27.0°C | 9.3°C | 0 mm | 58% | 0.7 m/s | 4 |
| 2009 | 21.9°C | 17.1°C | 12.3°C | 25.6°C | 10.4°C | 41 mm | 71% | 0.6 m/s | 3 |
| 2008 | 20.9°C | 16.1°C | 11.3°C | 25.6°C | 8.7°C | 42 mm | 67% | 0.6 m/s | 2.5 |
| 2007 | 22.5°C | 16.8°C | 11.2°C | 27.8°C | 8.9°C | 3 mm | 61% | 0.7 m/s | 3 |
| 2006 | 21.9°C | 16.6°C | 11.3°C | 26.1°C | 10.2°C | 2 mm | 57% | 0.7 m/s | 3.5 |
| 2005 | 21.5°C | 16.1°C | 10.7°C | 25.7°C | 9.1°C | 30 mm | 65% | 0.7 m/s | 3 |
| 2004 | 22.0°C | 16.3°C | 10.7°C | 29.9°C | 8.9°C | 7 mm | 63% | 0.7 m/s | 3.1 |
| 2003 | 21.5°C | 16.1°C | 10.8°C | 25.0°C | 8.8°C | 22 mm | 60% | 0.7 m/s | 3.4 |
| 2002 | 22.7°C | 17.1°C | 11.6°C | 26.3°C | 8.8°C | 38 mm | 63% | 0.6 m/s | 2.9 |
| 2001 | 21.7°C | 16.2°C | 10.6°C | 24.3°C | 8.6°C | 10 mm | 58% | 0.7 m/s | 2.9 |
| 2000 | 23.0°C | 16.9°C | 10.8°C | 26.5°C | 9.2°C | 38 mm | 58% | 0.7 m/s | 2.9 |
| 1999 | 24.0°C | 17.6°C | 11.1°C | 26.5°C | 6.9°C | 4 mm | 49% | 0.8 m/s | 3.7 |
| 1998 | 20.8°C | 15.2°C | 9.6°C | 26.0°C | 8.1°C | 19 mm | 60% | 0.7 m/s | 3 |
| 1997 | 21.8°C | 15.9°C | 10.0°C | 25.0°C | 7.0°C | 13 mm | 58% | 0.7 m/s | 3.3 |
| 1996 | 21.1°C | 15.8°C | 10.5°C | 25.3°C | 8.2°C | 30 mm | 67% | 0.7 m/s | 3 |
| 1995 | 22.9°C | 16.6°C | 10.3°C | 30.0°C | 8.6°C | 21 mm | 56% | 0.7 m/s | 3 |
| 1994 | 23.2°C | 17.6°C | 12.0°C | 27.9°C | 9.1°C | 26 mm | 58% | 0.7 m/s | 3.4 |
| 1993 ❄️ | 19.5°C | 14.7°C | 9.8°C | 24.3°C | 7.7°C | 50 mm | 70% | 0.6 m/s | 2.7 |
| 1992 | 21.3°C | 15.7°C | 10.1°C | 27.7°C | 7.6°C | 27 mm | 64% | 0.7 m/s | 3.5 |
| 1991 | 21.3°C | 15.9°C | 10.5°C | 27.1°C | 7.9°C | 3 mm | 63% | 0.7 m/s | 3.1 |
| 1990 | 23.3°C | 17.7°C | 12.0°C | 28.6°C | 9.0°C | 24 mm | 67% | 0.7 m/s | 3.3 |
| 1989 | 20.9°C | 15.6°C | 10.2°C | 26.4°C | 8.2°C | 14 mm | 64% | 0.7 m/s | 3.1 |
| 1988 | 23.4°C | 17.7°C | 12.0°C | 29.1°C | 9.9°C | 14 mm | 60% | 0.7 m/s | 3 |
| 1987 | 24.1°C | 17.9°C | 11.6°C | 29.7°C | 8.4°C | 1 mm | 59% | 0.7 m/s | 3.8 |
| 1986 | 22.5°C | 16.9°C | 11.3°C | 25.8°C | 8.4°C | 14 mm | 62% | 0.7 m/s | 3.3 |
| 1985 | 22.3°C | 16.5°C | 10.6°C | 26.6°C | 8.3°C | 9 mm | 63% | 0.7 m/s | 2.9 |
| 1984 | 20.4°C | 15.2°C | 10.0°C | 24.0°C | 7.0°C | 23 mm | 62% | 0.7 m/s | 2.9 |
| 1983 | 21.3°C | 15.6°C | 10.0°C | 24.8°C | 8.2°C | 14 mm | 59% | 0.7 m/s | — |
| 1982 | 22.4°C | 17.2°C | 12.1°C | 28.6°C | 10.6°C | 13 mm | 67% | 0.7 m/s | — |
| 1981 | 21.7°C | 16.5°C | 11.3°C | 25.0°C | 9.7°C | 32 mm | 67% | 0.6 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 22.2°C with lows near 11.4°C (mean 16.8°C), based on 45 years of NASA POWER data.
January averages 19 mm of rainfall in East Siang, one of the drier months. The wettest on record was 52 mm in 2020.
The hottest January reached 30.1°C in 2015. The coldest dipped to 6.9°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.2°C. Daytime highs moved from 21.6°C to 22.3°C and overnight lows from 10.8°C to 12.4°C over the same span.
January is one of the cooler months of the year in East Siang and one of the drier months, so plan for around 22.2°C daytime highs and 11.4°C at night.
Yes — January is the coldest month of the year in East Siang, averaging 16.8°C.
For January in East Siang, pack light layers you can adjust through the day, with typical highs of 22.2°C and lows of 11.4°C.
Relative humidity in January averages 64% — moderately humid.
Average wind speed in January is 0.7 m/s. The windiest January on record averaged 0.8 m/s (1999).
The wettest January on record was 2020 with 52 mm. On average, January sees 19 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 East Siang behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
