April is one of the warmer months of the year in East Siang, with average highs near 30.8°C and lows around 19.2°C (mean 25°C). It is about average for rainfall, averaging 214 mm of rainfall and 63% relative humidity across the period.
April is one of the warmer months of the year in East Siang. Across 45 years of records, the warmest April in East Siang was 1999 — when the month averaged 27.9°C — while the coldest was 1990 at 23°C. Typical April days reach 30.8°C with nights near 19.2°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in East Siang, averaging 214 mm of rainfall. The wettest April on record was 2010 with 534 mm, while the driest was 1991 at 38 mm.
Relative humidity in East Siang during April averages 63%. The most humid April was 2022 at 76%, and the least humid was 1999 at 50%.
April receives about 3.6 kWh/m²/day of solar energy in East Siang. The sunniest April was 1997 at 4.7 kWh/m²/day, and the cloudiest were 2001 and 2016 at 2.8.
Average wind speed in East Siang during April is 0.6 m/s. The windiest Aprils were 2022, 2023 and 2024, among others at 0.6 m/s, while the calmest were 2015, 2020 and 2025, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.6°C | 25.1°C | 25.4°C | 25.1°C | 24.9°C | +0.3°C |
| Avg High | 30.5°C | 31.6°C | 31.2°C | 30.3°C | 30.3°C | -0.2°C |
| Avg Low | 18.8°C | 18.5°C | 19.6°C | 19.8°C | 19.6°C | +0.8°C |
| Avg Rain | 204 mm | 148 mm | 203 mm | 274 mm | 255 mm | +51 mm |
April temperatures in East Siang have risen by about 0.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 13.6°C (1990) to a record high of 40.4°C (2020).
Rainfall in April is about average for rainfall, averaging 214 mm, with a wettest year of 534 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.1°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
April is a good time to visit East Siang, with days averaging 30.8°C and nights around 19.2°C (mean 25°C, close to East Siang's yearly average) and higher rainfall. November and March are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.0°C | 25.1°C | 20.3°C | 32.5°C | 17.2°C | 451 mm | 69% | 0.5 m/s | 3.2 |
| 2024 | 31.2°C | 25.7°C | 20.2°C | 33.7°C | 17.7°C | 182 mm | 65% | 0.6 m/s | 3.1 |
| 2023 | 30.5°C | 24.9°C | 19.3°C | 33.7°C | 15.8°C | 122 mm | 66% | 0.6 m/s | 3.5 |
| 2022 | 28.6°C | 24.2°C | 19.8°C | 32.6°C | 17.0°C | 467 mm | 76% | 0.6 m/s | 2.9 |
| 2021 | 30.9°C | 25.1°C | 19.4°C | 36.4°C | 16.9°C | 111 mm | 65% | 0.6 m/s | 3.9 |
| 2020 | 30.5°C | 24.6°C | 18.8°C | 40.4°C | 16.6°C | 197 mm | 66% | 0.5 m/s | 3.4 |
| 2019 | 30.9°C | 25.6°C | 20.2°C | 35.8°C | 14.7°C | 161 mm | 67% | 0.6 m/s | 4.3 |
| 2018 | 30.7°C | 25.2°C | 19.6°C | 33.4°C | 16.7°C | 151 mm | 66% | 0.6 m/s | 4.2 |
| 2017 | 29.3°C | 24.7°C | 20.1°C | 32.8°C | 17.3°C | 421 mm | 73% | 0.6 m/s | 3.4 |
| 2016 | 29.5°C | 24.8°C | 20.0°C | 33.1°C | 16.9°C | 437 mm | 76% | 0.6 m/s | 2.8 |
| 2015 | 28.6°C | 23.9°C | 19.2°C | 32.0°C | 17.3°C | 267 mm | 73% | 0.5 m/s | 3.2 |
| 2014 | 33.6°C | 27.0°C | 20.4°C | 36.8°C | 16.9°C | 57 mm | 54% | 0.6 m/s | 3.9 |
| 2013 | 31.1°C | 25.5°C | 19.8°C | 34.5°C | 16.5°C | 206 mm | 66% | 0.5 m/s | 3.2 |
| 2012 | 29.7°C | 24.4°C | 19.1°C | 33.4°C | 15.2°C | 348 mm | 69% | 0.6 m/s | 3.1 |
| 2011 | 30.2°C | 24.8°C | 19.3°C | 32.8°C | 15.6°C | 156 mm | 65% | 0.6 m/s | 3.8 |
| 2010 🌧️ | 29.4°C | 24.8°C | 20.2°C | 32.7°C | 18.2°C | 534 mm | 75% | 0.6 m/s | 3.4 |
| 2009 | 31.1°C | 25.3°C | 19.5°C | 34.8°C | 15.3°C | 171 mm | 65% | 0.6 m/s | 3.6 |
| 2008 | 31.5°C | 25.7°C | 19.9°C | 35.1°C | 16.9°C | 222 mm | 60% | 0.6 m/s | 3.3 |
| 2007 | 30.3°C | 24.9°C | 19.6°C | 35.0°C | 15.6°C | 235 mm | 66% | 0.6 m/s | 3.6 |
| 2006 | 31.0°C | 25.2°C | 19.4°C | 36.0°C | 16.7°C | 205 mm | 61% | 0.6 m/s | 3.5 |
| 2005 | 30.0°C | 24.6°C | 19.3°C | 32.2°C | 15.5°C | 224 mm | 66% | 0.6 m/s | 3.2 |
| 2004 | 30.1°C | 24.7°C | 19.3°C | 33.4°C | 15.7°C | 192 mm | 65% | 0.6 m/s | 3.9 |
| 2003 | 32.2°C | 26.3°C | 20.3°C | 36.0°C | 17.0°C | 143 mm | 59% | 0.6 m/s | 3.6 |
| 2002 | 31.9°C | 25.6°C | 19.4°C | 39.4°C | 16.5°C | 321 mm | 59% | 0.6 m/s | 3.8 |
| 2001 | 32.3°C | 26.1°C | 19.9°C | 35.6°C | 17.3°C | 104 mm | 53% | 0.6 m/s | 2.8 |
| 2000 | 31.4°C | 25.4°C | 19.4°C | 35.9°C | 17.1°C | 215 mm | 59% | 0.6 m/s | 3.3 |
| 1999 🔥 | 35.4°C | 27.9°C | 20.3°C | 39.0°C | 17.3°C | 237 mm | 50% | 0.6 m/s | 3.3 |
| 1998 | 32.4°C | 25.7°C | 19.1°C | 36.0°C | 15.9°C | 83 mm | 56% | 0.6 m/s | 4.2 |
| 1997 | 29.6°C | 23.5°C | 17.5°C | 34.9°C | 14.7°C | 113 mm | 58% | 0.6 m/s | 4.7 |
| 1996 | 32.1°C | 25.2°C | 18.2°C | 36.3°C | 14.3°C | 155 mm | 56% | 0.6 m/s | 3.9 |
| 1995 | 32.4°C | 25.3°C | 18.1°C | 36.2°C | 14.4°C | 132 mm | 53% | 0.6 m/s | 4 |
| 1994 | 31.1°C | 24.8°C | 18.5°C | 34.3°C | 16.5°C | 188 mm | 58% | 0.6 m/s | 3.7 |
| 1993 | 30.8°C | 24.5°C | 18.2°C | 34.1°C | 14.1°C | 105 mm | 57% | 0.6 m/s | 3.7 |
| 1992 | 31.1°C | 24.7°C | 18.4°C | 34.4°C | 16.3°C | 176 mm | 59% | 0.6 m/s | 4.2 |
| 1991 | 32.7°C | 26.0°C | 19.2°C | 36.8°C | 16.3°C | 38 mm | 51% | 0.6 m/s | 3.3 |
| 1990 ❄️ | 28.1°C | 23.0°C | 17.8°C | 32.1°C | 13.6°C | 251 mm | 70% | 0.6 m/s | 3.1 |
| 1989 | 30.8°C | 24.5°C | 18.2°C | 33.9°C | 14.3°C | 224 mm | 60% | 0.6 m/s | 4.1 |
| 1988 | 31.4°C | 25.1°C | 18.8°C | 34.2°C | 14.7°C | 202 mm | 62% | 0.6 m/s | 3.7 |
| 1987 | 30.7°C | 24.8°C | 18.8°C | 33.5°C | 16.7°C | 229 mm | 63% | 0.6 m/s | 4 |
| 1986 | 30.4°C | 24.7°C | 19.0°C | 36.3°C | 15.7°C | 209 mm | 62% | 0.6 m/s | 3.9 |
| 1985 | 31.1°C | 25.3°C | 19.5°C | 36.7°C | 16.0°C | 152 mm | 63% | 0.6 m/s | 3.6 |
| 1984 | 31.7°C | 25.8°C | 19.8°C | 34.8°C | 17.7°C | 228 mm | 61% | 0.6 m/s | 3.6 |
| 1983 | 30.2°C | 24.0°C | 17.9°C | 33.6°C | 15.8°C | 146 mm | 56% | 0.6 m/s | — |
| 1982 | 28.7°C | 23.7°C | 18.7°C | 31.7°C | 15.8°C | 227 mm | 71% | 0.6 m/s | — |
| 1981 | 29.5°C | 23.8°C | 18.1°C | 32.7°C | 15.3°C | 218 mm | 66% | 0.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 30.8°C with lows near 19.2°C (mean 25°C), based on 45 years of NASA POWER data.
April averages 214 mm of rainfall in East Siang, about average for rainfall. The wettest on record was 534 mm in 2010.
The hottest April reached 40.4°C in 2020. The coldest dipped to 13.6°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.5°C. Daytime highs moved from 30.2°C to 30.2°C and overnight lows from 18.8°C to 19.8°C over the same span.
April is one of the warmer months of the year in East Siang and about average for rainfall, so plan for around 30.8°C daytime highs and 19.2°C at night.
Not quite — April is the 6th coolest month in East Siang, averaging 25°C.
For April in East Siang, pack light, breathable clothing and sun protection, with typical highs of 30.8°C and lows of 19.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 63% — moderately humid.
Average wind speed in April is 0.6 m/s. The windiest April on record averaged 0.6 m/s (1981).
The wettest April on record was 2010 with 534 mm. On average, April sees 214 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 April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
