October is close to Sitamarhi's year-round average, with average highs near 31.2°C and lows around 20.9°C (mean 26.1°C). It is one of the drier months, averaging 50 mm of rainfall and 71% relative humidity across the period.
October is close to Sitamarhi's year-round average. Across 45 years of records, the warmest October in Sitamarhi was 1992 — when the month averaged 27.9°C — while the coldest was 2012 at 23.6°C. Typical October days reach 31.2°C with nights near 20.9°C. The long-term October temperature trend is broadly flat.
October is one of the drier months in Sitamarhi, averaging 50 mm of rainfall. The wettest October on record was 2025 with 234 mm, while the driest was 1981 at 1 mm.
Relative humidity in Sitamarhi during October averages 71%. The most humid October was 2021 at 89%, and the least humid was 1992 at 53%.
October receives about 4.7 kWh/m²/day of solar energy in Sitamarhi. The sunniest Octobers were 1989, 1991 and 1993 at 5.3 kWh/m²/day, and the cloudiest was 2013 at 3.7.
Average wind speed in Sitamarhi during October is 1.3 m/s. The windiest October was 2021 at 1.8 m/s, while the calmest were 2006, 2008 and 2020 at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.8°C | 26.6°C | 26.1°C | 25.7°C | 26.1°C | +0.3°C |
| Avg High | 31.3°C | 32.5°C | 31.3°C | 30.6°C | 30.1°C | -1.2°C |
| Avg Low | 20.3°C | 20.8°C | 20.9°C | 20.8°C | 22.0°C | +1.7°C |
| Avg Rain | 44 mm | 28 mm | 49 mm | 48 mm | 99 mm | +56 mm |
October temperatures in Sitamarhi have stayed relatively stable across the record.
October has ranged from a record low of 13°C (2012) to a record high of 37.2°C (1983).
Rainfall in October is one of the drier months, averaging 50 mm, with a wettest year of 234 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Sitamarhi
October is a good time to visit Sitamarhi, with days averaging 31.2°C and nights around 20.9°C (mean 26.1°C, close to Sitamarhi's yearly average) and moderate rainfall. November and February are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 29.4°C | 25.7°C | 21.9°C | 31.4°C | 17.9°C | 234 mm | 84% | 1.5 m/s | 3.9 |
| 2024 | 30.6°C | 26.6°C | 22.6°C | 31.8°C | 20.3°C | 17 mm | 84% | 1.6 m/s | 4.2 |
| 2023 | 30.0°C | 25.7°C | 21.4°C | 31.8°C | 17.3°C | 55 mm | 80% | 1.2 m/s | 4.5 |
| 2022 | 30.3°C | 25.7°C | 21.1°C | 34.0°C | 17.6°C | 89 mm | 80% | 1.3 m/s | 4.7 |
| 2021 | 29.4°C | 25.9°C | 22.5°C | 32.9°C | 16.5°C | 172 mm | 89% | 1.8 m/s | 4 |
| 2020 | 30.9°C | 26.7°C | 22.4°C | 32.3°C | 16.6°C | 30 mm | 80% | 0.9 m/s | 4.6 |
| 2019 | 29.1°C | 25.0°C | 20.8°C | 31.1°C | 18.5°C | 3 mm | 82% | 1.3 m/s | 4 |
| 2018 | 33.5°C | 27.1°C | 20.7°C | 36.3°C | 18.0°C | 14 mm | 57% | 1.3 m/s | 4.8 |
| 2017 | 32.7°C | 27.6°C | 22.5°C | 35.0°C | 16.9°C | 31 mm | 72% | 1.4 m/s | 4.4 |
| 2016 | 30.7°C | 26.0°C | 21.4°C | 32.7°C | 17.7°C | 52 mm | 78% | 1 m/s | 4.7 |
| 2015 | 31.7°C | 26.2°C | 20.7°C | 33.7°C | 16.2°C | 23 mm | 67% | 1.1 m/s | 4.8 |
| 2014 | 29.4°C | 25.0°C | 20.7°C | 31.8°C | 15.9°C | 56 mm | 81% | 1.2 m/s | 4.6 |
| 2013 | 29.2°C | 25.2°C | 21.1°C | 32.5°C | 17.0°C | 197 mm | 83% | 1.7 m/s | 3.7 |
| 2012 ❄️ | 29.1°C | 23.6°C | 18.0°C | 31.2°C | 13.0°C | 24 mm | 79% | 1.6 m/s | 5 |
| 2011 | 30.5°C | 25.8°C | 21.0°C | 32.0°C | 16.5°C | 7 mm | 76% | 1 m/s | 4.7 |
| 2010 | 30.5°C | 25.9°C | 21.4°C | 32.8°C | 16.0°C | 69 mm | 77% | 1.2 m/s | 4.4 |
| 2009 | 31.2°C | 25.5°C | 19.9°C | 34.8°C | 15.3°C | 69 mm | 69% | 1.5 m/s | 4.6 |
| 2008 | 29.9°C | 25.5°C | 21.0°C | 31.8°C | 15.7°C | 17 mm | 80% | 0.9 m/s | 4.9 |
| 2007 | 29.4°C | 25.2°C | 21.0°C | 32.2°C | 17.1°C | 30 mm | 83% | 1 m/s | 4.5 |
| 2006 | 30.7°C | 25.8°C | 21.0°C | 32.1°C | 17.9°C | 20 mm | 73% | 0.9 m/s | 4.9 |
| 2005 | 31.5°C | 26.6°C | 21.6°C | 34.5°C | 18.4°C | 105 mm | 72% | 1.4 m/s | 4.4 |
| 2004 | 30.8°C | 25.5°C | 20.2°C | 32.4°C | 16.6°C | 44 mm | 67% | 1.3 m/s | 4.7 |
| 2003 | 32.3°C | 26.5°C | 20.7°C | 34.9°C | 16.4°C | 81 mm | 67% | 1.7 m/s | 4.4 |
| 2002 | 33.1°C | 26.9°C | 20.7°C | 36.2°C | 16.3°C | 48 mm | 62% | 1.3 m/s | 4.8 |
| 2001 | 30.5°C | 26.1°C | 21.7°C | 32.3°C | 19.0°C | 77 mm | 77% | 1.3 m/s | 4.4 |
| 2000 | 33.1°C | 27.2°C | 21.2°C | 36.3°C | 17.5°C | 3 mm | 63% | 1.2 m/s | 5 |
| 1999 | 32.2°C | 26.9°C | 21.5°C | 35.0°C | 18.4°C | 80 mm | 69% | 1.5 m/s | 4.3 |
| 1998 | 31.9°C | 27.2°C | 22.4°C | 33.5°C | 16.2°C | 52 mm | 76% | 1.6 m/s | 4.7 |
| 1997 | 31.8°C | 25.9°C | 20.0°C | 34.2°C | 17.1°C | 21 mm | 63% | 1.3 m/s | 4.7 |
| 1996 | 31.4°C | 25.9°C | 20.5°C | 33.0°C | 15.6°C | 38 mm | 69% | 1.4 m/s | 4.8 |
| 1995 | 33.0°C | 27.2°C | 21.4°C | 34.4°C | 16.9°C | 12 mm | 61% | 1 m/s | 5.1 |
| 1994 | 33.1°C | 26.3°C | 19.5°C | 34.3°C | 14.8°C | 14 mm | 58% | 1.3 m/s | 5.1 |
| 1993 | 32.5°C | 26.6°C | 20.8°C | 33.8°C | 14.7°C | 7 mm | 62% | 1.1 m/s | 5.3 |
| 1992 🔥 | 34.2°C | 27.9°C | 21.6°C | 37.0°C | 15.8°C | 35 mm | 53% | 1.2 m/s | 4.8 |
| 1991 | 33.1°C | 26.7°C | 20.2°C | 34.7°C | 17.6°C | 1 mm | 59% | 1.1 m/s | 5.3 |
| 1990 | 31.4°C | 25.8°C | 20.2°C | 35.0°C | 15.5°C | 23 mm | 67% | 1.5 m/s | 4.8 |
| 1989 | 33.7°C | 27.6°C | 21.5°C | 36.6°C | 15.9°C | 24 mm | 57% | 1.2 m/s | 5.3 |
| 1988 | 31.6°C | 25.9°C | 20.2°C | 33.6°C | 16.7°C | 16 mm | 69% | 1.2 m/s | 5.2 |
| 1987 | 28.8°C | 24.4°C | 20.1°C | 31.2°C | 15.5°C | 58 mm | 82% | 1 m/s | 4.8 |
| 1986 | 31.3°C | 25.3°C | 19.3°C | 33.7°C | 14.4°C | 69 mm | 62% | 1.3 m/s | 4.9 |
| 1985 | 28.4°C | 24.5°C | 20.6°C | 31.3°C | 15.5°C | 148 mm | 83% | 1.2 m/s | 4.7 |
| 1984 | 31.2°C | 25.6°C | 20.0°C | 33.7°C | 15.4°C | 11 mm | 69% | 1.2 m/s | 5 |
| 1983 | 33.0°C | 27.2°C | 21.4°C | 37.2°C | 16.8°C | 58 mm | 60% | 1.5 m/s | — |
| 1982 | 33.2°C | 26.9°C | 20.6°C | 35.1°C | 17.1°C | 10 mm | 55% | 1.2 m/s | — |
| 1981 | 30.8°C | 24.9°C | 19.1°C | 32.3°C | 15.9°C | 1 mm | 71% | 1.4 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 31.2°C with lows near 20.9°C (mean 26.1°C), based on 45 years of NASA POWER data.
October averages 50 mm of rainfall in Sitamarhi, one of the drier months. The wettest on record was 234 mm in 2025.
The hottest October reached 37.2°C in 1983. The coldest dipped to 13°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 20.3°C to 21.9°C while daytime highs eased from 31.3°C to 29.9°C, narrowing the gap between day and night.
October is close to Sitamarhi's year-round average and one of the drier months, so plan for around 31.2°C daytime highs and 20.9°C at night.
Not quite — October is the 5th coolest month in Sitamarhi, averaging 26.1°C.
For October in Sitamarhi, pack light, breathable clothing and sun protection, with typical highs of 31.2°C and lows of 20.9°C.
Relative humidity in October averages 71% — moderately humid.
Average wind speed in October is 1.3 m/s. The windiest October on record averaged 1.8 m/s (2021).
The wettest October on record was 2025 with 234 mm. On average, October sees 50 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 Sitamarhi behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
