July is one of the warmer months of the year in Upper Siang, with average highs near 29.9°C and lows around 16.5°C (mean 23.2°C). It is a relatively wet time of year, averaging 463 mm of rainfall and 84% relative humidity across the period.
July is one of the warmer months of the year in Upper Siang. Across 45 years of records, the warmest July in Upper Siang was 2001 — when the month averaged 26.1°C — while the coldest was 2008 at 21.8°C. Typical July days reach 29.9°C with nights near 16.5°C. The long-term trend is warming, about 0.2°C per decade.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.6°C | 23.1°C | 23.5°C | 23.3°C | 23.7°C | +1.1°C |
| Avg High | 29.6°C | 29.9°C | 30.6°C | 29.4°C | 30.1°C | +0.5°C |
| Avg Low | 15.7°C | 16.2°C | 16.4°C | 17.2°C | 17.3°C | +1.6°C |
| Avg Rain | 478 mm | 414 mm | 434 mm | 476 mm | 551 mm | +73 mm |
July temperatures in Upper Siang have risen by about 1.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 14.5°C (1989) to a record high of 35.7°C (2001).
Rainfall in July is a relatively wet time of year, averaging 463 mm, with a wettest year of 1154 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 Upper Siang
If your dates are flexible, the more temperate months of October and November tend to be the most comfortable for visiting Upper Siang. That said, July — with days averaging 29.9°C and nights around 16.5°C (mean 23.2°C) and higher rainfall (463 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 | 30.2°C | 18.0°C | 24.1°C | 278 mm | 83% | 0.2 m/s | 5 |
| 2024 | 30.1°C | 16.9°C | 23.5°C | 656 mm | 86% | 0.2 m/s | 3.7 |
| 2023 | 31.9°C | 16.9°C | 24.4°C | 667 mm | 84% | 0.2 m/s | 3.7 |
| 2022 | 30.2°C | 16.8°C | 23.5°C | 254 mm | 82% | 0.2 m/s | 5.2 |
| 2021 | 29.9°C | 17.9°C | 23.9°C | 298 mm | 85% | 0.2 m/s | 4 |
| 2020 🌧️ | 28.0°C | 17.5°C | 22.8°C | 1154 mm | 90% | 0.2 m/s | 2.9 |
| 2019 | 28.7°C | 16.6°C | 22.6°C | 813 mm | 88% | 0.2 m/s | 3.6 |
| 2018 | 28.8°C | 17.9°C | 23.3°C | 501 mm | 85% | 0.2 m/s | 4.1 |
| 2017 | 30.3°C | 17.3°C | 23.8°C | 482 mm | 83% | 0.2 m/s | 4.6 |
| 2016 | 28.3°C | 17.9°C | 23.1°C | 645 mm | 88% | 0.2 m/s | 3.7 |
| 2015 | 29.2°C | 16.9°C | 23.0°C | 253 mm | 83% | 0.2 m/s | 5 |
| 2014 | 29.9°C | 17.7°C | 23.8°C | 305 mm | 85% | 0.2 m/s | 4.5 |
| 2013 | 31.6°C | 17.3°C | 24.5°C | 409 mm | 89% | 0.2 m/s | 4 |
| 2012 | 30.1°C | 17.0°C | 23.5°C | 426 mm | 87% | 0.2 m/s | 3.7 |
| 2011 | 28.5°C | 16.4°C | 22.4°C | 539 mm | 85% | 0.2 m/s | 3.6 |
| 2010 | 28.6°C | 17.1°C | 22.8°C | 389 mm | 86% | 0.2 m/s | 3.9 |
| 2009 | 31.3°C | 16.6°C | 23.9°C | 348 mm | 83% | 0.2 m/s | 4.1 |
| 2008 ❄️ | 28.2°C | 15.5°C | 21.8°C | 423 mm | 84% | 0.2 m/s | 4.1 |
| 2007 | 30.5°C | 16.5°C | 23.5°C | 492 mm | 85% | 0.2 m/s | 3.5 |
| 2006 | 30.8°C | 16.8°C | 23.8°C | 471 mm | 81% | 0.2 m/s | 4.6 |
| 2005 | 29.4°C | 16.4°C | 22.9°C | 325 mm | 81% | 0.2 m/s | 4.4 |
| 2004 | 28.2°C | 16.2°C | 22.2°C | 425 mm | 85% | 0.2 m/s | 3.6 |
| 2003 | 30.0°C | 15.7°C | 22.8°C | 635 mm | 85% | 0.2 m/s | 3.9 |
| 2002 | 31.9°C | 16.4°C | 24.1°C | 473 mm | 83% | 0.2 m/s | 3 |
| 2001 🔥 | 35.7°C | 16.5°C | 26.1°C | 300 mm | 79% | 0.2 m/s | 4.7 |
| 2000 | 29.9°C | 17.2°C | 23.6°C | 450 mm | 82% | 0.2 m/s | 4.4 |
| 1999 | 31.6°C | 16.0°C | 23.8°C | 251 mm | 81% | 0.3 m/s | 4.4 |
| 1998 | 28.1°C | 17.6°C | 22.9°C | 464 mm | 87% | 0.2 m/s | 4.8 |
| 1997 | 29.6°C | 16.7°C | 23.2°C | 416 mm | 82% | 0.2 m/s | 4.9 |
| 1996 | 31.6°C | 15.7°C | 23.6°C | 418 mm | 85% | 0.2 m/s | 4 |
| 1995 | 28.7°C | 15.7°C | 22.2°C | 388 mm | 85% | 0.2 m/s | 4.3 |
| 1994 | 30.6°C | 15.9°C | 23.2°C | 282 mm | 76% | 0.3 m/s | 5.1 |
| 1993 | 29.4°C | 16.2°C | 22.8°C | 428 mm | 82% | 0.2 m/s | 4.3 |
| 1992 | 30.1°C | 14.6°C | 22.3°C | 415 mm | 83% | 0.2 m/s | 3.9 |
| 1991 | 30.2°C | 17.3°C | 23.7°C | 520 mm | 85% | 0.2 m/s | 3.3 |
| 1990 | 29.1°C | 16.6°C | 22.8°C | 556 mm | 85% | 0.2 m/s | 3.5 |
| 1989 | 29.8°C | 14.5°C | 22.2°C | 388 mm | 84% | 0.2 m/s | 4.4 |
| 1988 | 30.7°C | 16.3°C | 23.5°C | 547 mm | 85% | 0.2 m/s | 3.2 |
| 1987 | 29.9°C | 15.4°C | 22.7°C | 470 mm | 86% | 0.2 m/s | 2.9 |
| 1986 | 30.4°C | 14.7°C | 22.5°C | 420 mm | 83% | 0.2 m/s | 3.7 |
| 1985 | 28.8°C | 16.0°C | 22.4°C | 601 mm | 86% | 0.2 m/s | 3.4 |
| 1984 | 28.9°C | 16.4°C | 22.6°C | 564 mm | 87% | 0.2 m/s | 2.1 |
| 1983 | 29.1°C | 15.8°C | 22.5°C | 310 mm | 85% | 0.2 m/s | — |
| 1982 | 29.3°C | 15.6°C | 22.5°C | 356 mm | 85% | 0.2 m/s | — |
| 1981 | 29.1°C | 16.4°C | 22.7°C | 649 mm | 86% | 0.2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 29.9°C with lows near 16.5°C (mean 23.2°C), based on 45 years of NASA POWER data.
July averages 463 mm of rainfall in Upper Siang, a relatively wet time of year. The wettest on record was 1154 mm in 2020.
The hottest July reached 35.7°C in 2001. The coldest dipped to 14.5°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.4°C. Daytime highs moved from 29°C to 30.5°C and overnight lows from 16°C to 17.3°C over the same span.
July is one of the warmer months of the year in Upper Siang and a relatively wet time of year, so plan for around 29.9°C daytime highs and 16.5°C at night.
Not quite — July is the 11th coolest month in Upper Siang, averaging 23.2°C.
For July in Upper Siang, pack light layers you can adjust through the day, with typical highs of 29.9°C and lows of 16.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 84% — quite humid.
Average wind speed in July is 0.2 m/s. The windiest July on record averaged 0.3 m/s (1994).
The wettest July on record was 2020 with 1154 mm. On average, July sees 463 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 July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
