June is one of the warmer months of the year in South Sikkim, with average highs near 27.7°C and lows around 19.6°C (mean 23.7°C). It is a relatively wet time of year, averaging 244 mm of rainfall and 77% relative humidity across the period.
June is one of the warmer months of the year in South Sikkim. Across 45 years of records, the warmest June in South Sikkim was 1995 — when the month averaged 24.9°C — while the coldest were 2020 and 2022 at 22.3°C. Typical June days reach 27.7°C with nights near 19.6°C. The long-term trend is cooling, about 0.2°C per decade.
June is a relatively wet time of year in South Sikkim, averaging 244 mm of rainfall. The wettest June on record was 2024 with 768 mm, while the driest was 1992 at 78 mm.
Relative humidity in South Sikkim during June averages 77%. The most humid June was 2022 at 89%, and the least humid was 1986 at 64%.
June receives about 4.6 kWh/m²/day of solar energy in South Sikkim. The sunniest June was 1989 at 5.8 kWh/m²/day, and the cloudiest was 2022 at 3.7.
Average wind speed in South Sikkim during June is 1.4 m/s. The windiest Junes were 2002, 2004 and 2007, among others at 1.6 m/s, while the calmest was 2013 at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.8°C | 24.2°C | 23.5°C | 23.5°C | 22.8°C | -1°C |
| Avg High | 28.1°C | 28.8°C | 27.7°C | 27.2°C | 26.1°C | -2°C |
| Avg Low | 19.4°C | 19.7°C | 19.4°C | 19.8°C | 19.5°C | +0.1°C |
| Avg Rain | 219 mm | 158 mm | 178 mm | 258 mm | 511 mm | +292 mm |
June temperatures in South Sikkim have fallen by about 0.8°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 16.2°C (1986) to a record high of 33.1°C (1987).
Rainfall in June is a relatively wet time of year, averaging 244 mm, with a wettest year of 768 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.5°C per decade while lows rose 0.1°C per decade, narrowing the gap between day and night.
A good time to visit South Sikkim
June is a good time to visit South Sikkim, with days averaging 27.7°C and nights around 19.6°C (mean 23.7°C, warmer than South Sikkim's yearly average) and higher rainfall. April and May are marginally more temperate, but June still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 26.5°C | 22.9°C | 19.4°C | 28.8°C | 16.6°C | 302 mm | 84% | 1.3 m/s | 4.6 |
| 2024 🌧️ | 26.2°C | 23.1°C | 20.0°C | 27.6°C | 18.0°C | 768 mm | 87% | 1.3 m/s | 3.9 |
| 2023 | 27.8°C | 23.7°C | 19.7°C | 31.3°C | 17.6°C | 422 mm | 77% | 1.4 m/s | 4.4 |
| 2022 | 25.4°C | 22.3°C | 19.3°C | 27.2°C | 18.4°C | 678 mm | 89% | 1.4 m/s | 3.7 |
| 2021 | 25.7°C | 22.6°C | 19.5°C | 27.4°C | 17.8°C | 382 mm | 88% | 1.5 m/s | 4.1 |
| 2020 ❄️ | 25.2°C | 22.3°C | 19.3°C | 27.7°C | 17.2°C | 513 mm | 88% | 1.5 m/s | 3.8 |
| 2019 | 27.9°C | 24.0°C | 20.0°C | 30.5°C | 17.6°C | 203 mm | 81% | 1.3 m/s | 4.6 |
| 2018 | 26.6°C | 23.3°C | 19.9°C | 29.1°C | 18.3°C | 232 mm | 84% | 1.3 m/s | 4.2 |
| 2017 | 27.6°C | 23.8°C | 20.0°C | 30.5°C | 18.7°C | 201 mm | 80% | 1.5 m/s | 4.5 |
| 2016 | 26.4°C | 23.2°C | 20.0°C | 29.7°C | 17.7°C | 326 mm | 84% | 1.4 m/s | 4.2 |
| 2015 | 26.9°C | 23.4°C | 19.9°C | 28.9°C | 19.0°C | 284 mm | 82% | 1.3 m/s | 4.2 |
| 2014 | 27.8°C | 24.0°C | 20.2°C | 29.9°C | 18.9°C | 291 mm | 79% | 1.3 m/s | 4.4 |
| 2013 | 26.7°C | 23.2°C | 19.7°C | 29.2°C | 17.8°C | 287 mm | 81% | 1.2 m/s | 4.4 |
| 2012 | 28.3°C | 24.2°C | 20.1°C | 31.6°C | 18.5°C | 204 mm | 75% | 1.3 m/s | 4.1 |
| 2011 | 27.0°C | 23.1°C | 19.1°C | 29.1°C | 17.4°C | 300 mm | 79% | 1.4 m/s | 4.4 |
| 2010 | 26.8°C | 23.0°C | 19.3°C | 29.0°C | 17.8°C | 251 mm | 81% | 1.4 m/s | 4.5 |
| 2009 | 28.1°C | 23.6°C | 19.2°C | 30.4°C | 17.5°C | 90 mm | 74% | 1.3 m/s | 4.5 |
| 2008 | 26.4°C | 22.8°C | 19.3°C | 28.4°C | 18.0°C | 296 mm | 84% | 1.5 m/s | 4 |
| 2007 | 27.1°C | 23.2°C | 19.3°C | 30.9°C | 18.3°C | 189 mm | 80% | 1.6 m/s | 4.4 |
| 2006 | 27.5°C | 23.4°C | 19.3°C | 29.8°C | 17.4°C | 195 mm | 78% | 1.5 m/s | 4.2 |
| 2005 | 29.1°C | 24.4°C | 19.7°C | 32.7°C | 17.3°C | 120 mm | 69% | 1.5 m/s | 4.3 |
| 2004 | 27.4°C | 23.3°C | 19.2°C | 29.8°C | 17.0°C | 182 mm | 79% | 1.6 m/s | 4.1 |
| 2003 | 28.6°C | 24.2°C | 19.8°C | 30.9°C | 18.8°C | 197 mm | 72% | 1.5 m/s | 3.9 |
| 2002 | 27.6°C | 23.5°C | 19.4°C | 29.4°C | 17.9°C | 152 mm | 79% | 1.6 m/s | 4.4 |
| 2001 | 27.3°C | 23.3°C | 19.2°C | 29.2°C | 18.0°C | 179 mm | 81% | 1.6 m/s | 4.7 |
| 2000 | 27.4°C | 23.5°C | 19.5°C | 32.3°C | 17.7°C | 183 mm | 80% | 1.5 m/s | 4.3 |
| 1999 | 28.2°C | 23.9°C | 19.6°C | 31.6°C | 17.3°C | 160 mm | 74% | 1.5 m/s | 4.8 |
| 1998 | 28.7°C | 24.4°C | 20.1°C | 32.8°C | 17.8°C | 165 mm | 75% | 1.4 m/s | 5.3 |
| 1997 | 29.6°C | 24.6°C | 19.5°C | 31.8°C | 17.3°C | 150 mm | 65% | 1.6 m/s | 5.5 |
| 1996 | 28.4°C | 23.9°C | 19.5°C | 30.8°C | 16.3°C | 130 mm | 70% | 1.6 m/s | 5.4 |
| 1995 🔥 | 29.5°C | 24.9°C | 20.4°C | 31.8°C | 18.6°C | 99 mm | 73% | 1.6 m/s | 5 |
| 1994 | 28.8°C | 24.4°C | 20.0°C | 31.4°C | 18.7°C | 185 mm | 72% | 1.6 m/s | 4.9 |
| 1993 | 28.5°C | 23.8°C | 19.2°C | 31.0°C | 16.7°C | 183 mm | 71% | 1.4 m/s | 5 |
| 1992 | 29.6°C | 24.3°C | 19.0°C | 32.0°C | 16.9°C | 78 mm | 65% | 1.5 m/s | 5.3 |
| 1991 | 27.7°C | 23.5°C | 19.2°C | 30.1°C | 17.0°C | 260 mm | 76% | 1.5 m/s | 4.9 |
| 1990 | 29.1°C | 24.6°C | 20.0°C | 31.8°C | 18.8°C | 166 mm | 74% | 1.6 m/s | 5.1 |
| 1989 | 26.4°C | 22.5°C | 18.7°C | 29.7°C | 17.2°C | 271 mm | 81% | 1.3 m/s | 5.8 |
| 1988 | 28.6°C | 24.0°C | 19.4°C | 33.0°C | 17.9°C | 170 mm | 74% | 1.6 m/s | 5.2 |
| 1987 | 29.4°C | 24.6°C | 19.8°C | 33.1°C | 17.8°C | 160 mm | 70% | 1.4 m/s | 5.1 |
| 1986 | 29.3°C | 24.4°C | 19.5°C | 32.2°C | 16.2°C | 234 mm | 64% | 1.6 m/s | 5.5 |
| 1985 | 28.5°C | 23.9°C | 19.3°C | 31.0°C | 17.7°C | 220 mm | 73% | 1.4 m/s | 5.4 |
| 1984 | 26.5°C | 23.1°C | 19.7°C | 32.2°C | 18.5°C | 311 mm | 84% | 1.4 m/s | 5 |
| 1983 | 29.8°C | 24.7°C | 19.5°C | 32.7°C | 17.4°C | 135 mm | 64% | 1.4 m/s | — |
| 1982 | 27.3°C | 23.3°C | 19.2°C | 30.7°C | 17.6°C | 249 mm | 78% | 1.4 m/s | — |
| 1981 | 27.3°C | 23.3°C | 19.4°C | 30.2°C | 16.7°C | 220 mm | 77% | 1.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 27.7°C with lows near 19.6°C (mean 23.7°C), based on 45 years of NASA POWER data.
June averages 244 mm of rainfall in South Sikkim, a relatively wet time of year. The wettest on record was 768 mm in 2024.
The hottest June reached 33.1°C in 1987. The coldest dipped to 16.2°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have fallen by about 0.8°C — but days and nights have moved in opposite directions. Overnight lows rose from 19.4°C to 19.6°C while daytime highs eased from 27.9°C to 26.3°C, narrowing the gap between day and night.
June is one of the warmer months of the year in South Sikkim and a relatively wet time of year, so plan for around 27.7°C daytime highs and 19.6°C at night.
Not quite — June is the 12th coolest month in South Sikkim, averaging 23.7°C.
For June in South Sikkim, pack light layers you can adjust through the day, with typical highs of 27.7°C and lows of 19.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 77% — quite humid.
Average wind speed in June is 1.4 m/s. The windiest June on record averaged 1.6 m/s (1986).
The wettest June on record was 2024 with 768 mm. On average, June sees 244 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 South Sikkim behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
