August is one of the warmer months of the year in Supaul, with average highs near 32.4°C and lows around 26°C (mean 29.2°C). It is a relatively wet time of year, averaging 218 mm of rainfall and 84% relative humidity across the period.
August is one of the warmer months of the year in Supaul. Across 45 years of records, the warmest August in Supaul was 1994 — when the month averaged 31.1°C — while the coldest were 1987 and 2011 at 28.4°C. Typical August days reach 32.4°C with nights near 26°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Supaul, averaging 218 mm of rainfall. The wettest August on record was 2023 with 585 mm, while the driest was 2003 at 72 mm.
Relative humidity in Supaul during August averages 84%. The most humid August was 2021 at 90%, and the least humid was 1993 at 70%.
August receives about 4.8 kWh/m²/day of solar energy in Supaul. The sunniest August was 2016 at 5.6 kWh/m²/day, and the cloudiest was 2023 at 3.8.
Average wind speed in Supaul during August is 2.3 m/s. The windiest August was 1982 at 3.1 m/s, while the calmest was 2012 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.9°C | 29.6°C | 29.2°C | 29.1°C | 29.0°C | +0.1°C |
| Avg High | 32.1°C | 33.1°C | 32.4°C | 32.1°C | 31.9°C | -0.2°C |
| Avg Low | 25.8°C | 26.1°C | 26.0°C | 26.1°C | 26.2°C | +0.4°C |
| Avg Rain | 200 mm | 169 mm | 203 mm | 221 mm | 350 mm | +150 mm |
August temperatures in Supaul have stayed relatively stable across the record.
August has ranged from a record low of 23.1°C (1999) to a record high of 40.5°C (1994).
Rainfall in August is a relatively wet time of year, averaging 218 mm, with a wettest year of 585 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Supaul
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Supaul. That said, August — with days averaging 32.4°C and nights around 26°C (mean 29.2°C) and higher rainfall (218 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 | 31.8°C | 28.8°C | 25.8°C | 33.6°C | 24.3°C | 283 mm | 87% | 2.1 m/s | 4.4 |
| 2024 | 31.9°C | 29.0°C | 26.2°C | 33.6°C | 24.8°C | 325 mm | 87% | 2.2 m/s | 4.9 |
| 2023 🌧️ | 32.1°C | 29.2°C | 26.3°C | 34.3°C | 25.1°C | 585 mm | 88% | 2.2 m/s | 3.8 |
| 2022 | 32.6°C | 29.3°C | 26.0°C | 34.4°C | 23.8°C | 200 mm | 85% | 2.3 m/s | 4.8 |
| 2021 | 31.2°C | 28.7°C | 26.3°C | 33.5°C | 25.2°C | 458 mm | 90% | 2 m/s | 4.1 |
| 2020 | 31.5°C | 28.9°C | 26.3°C | 33.3°C | 24.9°C | 250 mm | 89% | 2.2 m/s | 4.9 |
| 2019 | 32.3°C | 29.4°C | 26.5°C | 35.4°C | 25.5°C | 130 mm | 86% | 2.2 m/s | 5.3 |
| 2018 | 32.2°C | 29.3°C | 26.3°C | 34.8°C | 24.9°C | 202 mm | 86% | 1.9 m/s | 4.8 |
| 2017 | 31.5°C | 29.0°C | 26.4°C | 33.9°C | 25.4°C | 362 mm | 88% | 1.8 m/s | 4.4 |
| 2016 | 32.1°C | 29.2°C | 26.2°C | 34.9°C | 25.0°C | 117 mm | 86% | 2.2 m/s | 5.6 |
| 2015 | 32.8°C | 29.7°C | 26.5°C | 35.1°C | 25.0°C | 294 mm | 84% | 1.9 m/s | 4.5 |
| 2014 | 32.6°C | 29.5°C | 26.4°C | 34.2°C | 25.2°C | 221 mm | 84% | 1.8 m/s | 4.6 |
| 2013 | 32.1°C | 28.8°C | 25.6°C | 34.9°C | 24.4°C | 170 mm | 83% | 1.8 m/s | 5 |
| 2012 | 32.1°C | 28.9°C | 25.8°C | 33.8°C | 24.4°C | 139 mm | 83% | 1.4 m/s | 5.2 |
| 2011 | 31.2°C | 28.4°C | 25.6°C | 34.6°C | 24.2°C | 313 mm | 89% | 2.4 m/s | 4.9 |
| 2010 | 32.0°C | 29.0°C | 26.0°C | 34.7°C | 25.1°C | 259 mm | 86% | 1.9 m/s | 4.8 |
| 2009 | 31.9°C | 29.0°C | 26.1°C | 35.3°C | 23.9°C | 328 mm | 87% | 2 m/s | 4.6 |
| 2008 | 31.4°C | 28.5°C | 25.7°C | 34.3°C | 24.6°C | 274 mm | 88% | 2.1 m/s | 4.5 |
| 2007 | 31.9°C | 28.9°C | 25.8°C | 34.9°C | 24.1°C | 197 mm | 86% | 1.8 m/s | 4.7 |
| 2006 | 32.6°C | 29.2°C | 25.9°C | 34.9°C | 24.7°C | 126 mm | 82% | 2.6 m/s | 5.5 |
| 2005 | 32.2°C | 29.1°C | 26.1°C | 34.6°C | 24.7°C | 363 mm | 86% | 2.1 m/s | 4.4 |
| 2004 | 31.6°C | 28.8°C | 26.0°C | 32.8°C | 25.1°C | 196 mm | 88% | 2.7 m/s | 5.2 |
| 2003 | 32.9°C | 29.6°C | 26.3°C | 35.0°C | 25.6°C | 72 mm | 83% | 2.7 m/s | 5.3 |
| 2002 | 32.0°C | 28.8°C | 25.6°C | 34.7°C | 23.4°C | 209 mm | 85% | 2.8 m/s | 5 |
| 2001 | 34.1°C | 30.4°C | 26.6°C | 37.4°C | 24.7°C | 117 mm | 77% | 2.4 m/s | 5 |
| 2000 | 33.8°C | 30.0°C | 26.2°C | 37.1°C | 24.8°C | 148 mm | 79% | 2.4 m/s | 4.8 |
| 1999 | 32.6°C | 29.2°C | 25.8°C | 37.1°C | 23.1°C | 220 mm | 83% | 2.6 m/s | 4.4 |
| 1998 | 32.1°C | 29.1°C | 26.2°C | 33.4°C | 25.2°C | 165 mm | 86% | 2.3 m/s | 4.5 |
| 1997 | 32.0°C | 28.9°C | 25.7°C | 35.4°C | 24.3°C | 166 mm | 84% | 2.5 m/s | 4.7 |
| 1996 | 31.9°C | 28.8°C | 25.7°C | 34.8°C | 24.0°C | 154 mm | 83% | 2.3 m/s | 5.1 |
| 1995 | 32.5°C | 29.3°C | 26.0°C | 34.3°C | 24.8°C | 255 mm | 84% | 2.4 m/s | 5 |
| 1994 🔥 | 35.2°C | 31.1°C | 26.9°C | 40.5°C | 25.4°C | 126 mm | 71% | 2.9 m/s | 5 |
| 1993 | 35.2°C | 31.0°C | 26.9°C | 38.9°C | 24.1°C | 137 mm | 70% | 2.5 m/s | 4.1 |
| 1992 | 34.1°C | 30.1°C | 26.0°C | 38.4°C | 24.2°C | 133 mm | 75% | 2.7 m/s | 4.7 |
| 1991 | 33.2°C | 29.7°C | 26.2°C | 36.1°C | 24.5°C | 198 mm | 79% | 2.7 m/s | 3.9 |
| 1990 | 31.9°C | 28.8°C | 25.6°C | 34.7°C | 24.5°C | 133 mm | 85% | 2.1 m/s | 5 |
| 1989 | 32.8°C | 29.2°C | 25.6°C | 35.5°C | 23.4°C | 94 mm | 81% | 2.3 m/s | 4.8 |
| 1988 | 31.9°C | 28.9°C | 25.9°C | 34.4°C | 23.6°C | 265 mm | 85% | 2 m/s | 4 |
| 1987 ❄️ | 31.1°C | 28.4°C | 25.8°C | 33.9°C | 24.7°C | 432 mm | 88% | 2.2 m/s | 4.2 |
| 1986 | 32.6°C | 29.1°C | 25.5°C | 34.3°C | 23.7°C | 165 mm | 83% | 2.2 m/s | 5.2 |
| 1985 | 32.0°C | 29.0°C | 26.0°C | 35.0°C | 24.9°C | 157 mm | 85% | 2.3 m/s | 4.8 |
| 1984 | 31.7°C | 28.7°C | 25.7°C | 34.0°C | 24.3°C | 174 mm | 86% | 2.5 m/s | 5.5 |
| 1983 | 32.8°C | 29.3°C | 25.8°C | 34.9°C | 23.5°C | 119 mm | 83% | 2.6 m/s | — |
| 1982 | 32.5°C | 29.1°C | 25.8°C | 34.4°C | 24.4°C | 134 mm | 85% | 3.1 m/s | — |
| 1981 | 31.4°C | 28.7°C | 26.1°C | 33.0°C | 25.0°C | 259 mm | 88% | 2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 32.4°C with lows near 26°C (mean 29.2°C), based on 45 years of NASA POWER data.
August averages 218 mm of rainfall in Supaul, a relatively wet time of year. The wettest on record was 585 mm in 2023.
The hottest August reached 40.5°C in 1994. The coldest dipped to 23.1°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have held steady by about 0°C — but days and nights have moved in opposite directions. Overnight lows rose from 25.9°C to 26.1°C while daytime highs eased from 32.1°C to 31.9°C, narrowing the gap between day and night.
August is one of the warmer months of the year in Supaul and a relatively wet time of year, so plan for around 32.4°C daytime highs and 26°C at night.
Not quite — August is the 8th coolest month in Supaul, averaging 29.2°C.
For August in Supaul, pack light, breathable clothing and sun protection, with typical highs of 32.4°C and lows of 26°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 2.3 m/s. The windiest August on record averaged 3.1 m/s (1982).
The wettest August on record was 2023 with 585 mm. On average, August sees 218 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 Supaul behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
