May is one of the warmer months of the year in Banka, with average highs near 40.1°C and lows around 26.4°C (mean 33.3°C). It is about average for rainfall, averaging 81 mm of rainfall and 45% relative humidity across the period.
May is one of the warmer months of the year in Banka. Across 45 years of records, the warmest May in Banka was 1991 — when the month averaged 36°C — while the coldest were 2020 and 2021 at 30.9°C. Typical May days reach 40.1°C with nights near 26.4°C. The long-term trend is cooling, about 0.3°C per decade.
May is about average for rainfall in Banka, averaging 81 mm of rainfall. The wettest May on record was 2021 with 313 mm, while the driest was 1995 at 11 mm.
Relative humidity in Banka during May averages 45%. The most humid May was 2018 at 60%, and the least humid was 1996 at 28%.
May receives about 6.3 kWh/m²/day of solar energy in Banka. The sunniest May was 1985 at 7.2 kWh/m²/day, and the cloudiest was 2021 at 5.1.
Average wind speed in Banka during May is 2.4 m/s. The windiest May was 1989 at 3.3 m/s, while the calmest was 2007 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 33.3°C | 34.3°C | 33.2°C | 33.2°C | 31.9°C | -1.4°C |
| Avg High | 40.6°C | 41.6°C | 39.7°C | 39.9°C | 38.1°C | -2.5°C |
| Avg Low | 26.0°C | 27.0°C | 26.6°C | 26.5°C | 25.8°C | -0.2°C |
| Avg Rain | 61 mm | 41 mm | 71 mm | 104 mm | 153 mm | +92 mm |
May temperatures in Banka have fallen by about 1.3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 18.9°C (1986) to a record high of 47.4°C (1988).
Rainfall in May is about average for rainfall, averaging 81 mm, with a wettest year of 313 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.6°C per decade while lows fell 0.1°C per decade, narrowing the gap between day and night.
A quieter season to visit Banka
If your dates are flexible, the more temperate months of November and February tend to be the most comfortable for visiting Banka. That said, May — with days averaging 40.1°C and nights around 26.4°C (mean 33.3°C) and higher rainfall (81 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 | 38.0°C | 32.0°C | 26.0°C | 43.5°C | 22.4°C | 111 mm | 54% | 2.1 m/s | 5.5 |
| 2024 | 39.4°C | 32.9°C | 26.4°C | 45.2°C | 22.7°C | 128 mm | 47% | 2.6 m/s | 5.8 |
| 2023 | 39.9°C | 32.9°C | 25.9°C | 43.3°C | 23.0°C | 50 mm | 40% | 2 m/s | 6.2 |
| 2022 | 38.0°C | 32.0°C | 26.0°C | 42.9°C | 24.1°C | 152 mm | 57% | 2.1 m/s | 5.8 |
| 2021 🌧️ | 36.3°C | 30.9°C | 25.6°C | 41.1°C | 23.5°C | 313 mm | 58% | 2.3 m/s | 5.1 |
| 2020 ❄️ | 37.1°C | 30.9°C | 24.7°C | 44.0°C | 22.2°C | 166 mm | 57% | 2 m/s | 5.7 |
| 2019 | 42.1°C | 34.1°C | 26.2°C | 44.3°C | 21.9°C | 73 mm | 38% | 2.4 m/s | 6.5 |
| 2018 | 37.5°C | 31.4°C | 25.3°C | 42.6°C | 23.0°C | 112 mm | 60% | 2.5 m/s | 5.7 |
| 2017 | 39.1°C | 32.8°C | 26.4°C | 42.8°C | 23.6°C | 127 mm | 54% | 2.1 m/s | 6 |
| 2016 | 39.4°C | 33.1°C | 26.7°C | 44.1°C | 24.6°C | 152 mm | 48% | 2 m/s | 5.9 |
| 2015 | 40.5°C | 33.4°C | 26.4°C | 44.9°C | 23.6°C | 77 mm | 47% | 2.1 m/s | 6.3 |
| 2014 | 40.7°C | 34.2°C | 27.7°C | 45.2°C | 23.7°C | 149 mm | 38% | 2.9 m/s | 6.3 |
| 2013 | 38.8°C | 32.3°C | 25.7°C | 43.6°C | 23.1°C | 144 mm | 50% | 2.3 m/s | 5.7 |
| 2012 | 42.5°C | 35.2°C | 28.0°C | 45.8°C | 24.5°C | 15 mm | 32% | 2.3 m/s | 6.6 |
| 2011 | 38.7°C | 32.3°C | 26.0°C | 42.2°C | 23.1°C | 105 mm | 55% | 2.2 m/s | 6.3 |
| 2010 | 40.1°C | 33.5°C | 26.9°C | 45.7°C | 24.9°C | 83 mm | 49% | 2.6 m/s | 5.9 |
| 2009 | 38.8°C | 32.5°C | 26.2°C | 44.3°C | 23.8°C | 62 mm | 49% | 2.8 m/s | 5.9 |
| 2008 | 39.4°C | 33.2°C | 26.9°C | 43.5°C | 25.3°C | 73 mm | 47% | 2.1 m/s | 6.3 |
| 2007 | 38.9°C | 32.7°C | 26.5°C | 42.8°C | 24.3°C | 89 mm | 49% | 1.9 m/s | 6.3 |
| 2006 | 38.9°C | 32.9°C | 26.9°C | 43.4°C | 24.4°C | 89 mm | 52% | 2.4 m/s | 6 |
| 2005 | 41.4°C | 34.2°C | 26.9°C | 45.3°C | 22.7°C | 35 mm | 39% | 2.2 m/s | 6.7 |
| 2004 | 41.4°C | 34.2°C | 27.1°C | 45.1°C | 20.0°C | 34 mm | 40% | 2.2 m/s | 6.7 |
| 2003 | 40.0°C | 32.7°C | 25.4°C | 43.1°C | 22.2°C | 83 mm | 42% | 2.3 m/s | 6.5 |
| 2002 | 39.5°C | 33.0°C | 26.5°C | 45.2°C | 22.9°C | 67 mm | 51% | 2.8 m/s | 5.9 |
| 2001 | 39.4°C | 33.3°C | 27.1°C | 41.8°C | 24.7°C | 83 mm | 52% | 2.7 m/s | 6.2 |
| 2000 | 38.9°C | 32.8°C | 26.6°C | 43.5°C | 23.7°C | 93 mm | 55% | 2.4 m/s | 5.8 |
| 1999 | 39.1°C | 32.9°C | 26.6°C | 46.5°C | 24.0°C | 114 mm | 52% | 2.3 m/s | 6 |
| 1998 | 41.1°C | 34.1°C | 27.0°C | 46.4°C | 24.2°C | 42 mm | 44% | 2.5 m/s | 6.4 |
| 1997 | 41.9°C | 34.1°C | 26.3°C | 44.8°C | 21.6°C | 37 mm | 30% | 2.3 m/s | 6.5 |
| 1996 | 43.8°C | 35.7°C | 27.6°C | 47.2°C | 22.4°C | 17 mm | 28% | 2.3 m/s | 6.6 |
| 1995 | 42.2°C | 34.9°C | 27.6°C | 45.9°C | 25.3°C | 11 mm | 31% | 2.6 m/s | 6.4 |
| 1994 | 41.8°C | 34.6°C | 27.3°C | 44.9°C | 23.8°C | 38 mm | 34% | 2.2 m/s | 6.7 |
| 1993 | 41.6°C | 34.3°C | 26.9°C | 46.2°C | 25.0°C | 31 mm | 40% | 2.3 m/s | 7 |
| 1992 | 40.3°C | 32.9°C | 25.6°C | 45.1°C | 22.1°C | 55 mm | 39% | 2.3 m/s | 6.8 |
| 1991 🔥 | 43.9°C | 36.0°C | 28.2°C | 46.2°C | 24.1°C | 14 mm | 29% | 2.5 m/s | 6.6 |
| 1990 | 40.2°C | 33.6°C | 27.1°C | 43.5°C | 24.6°C | 56 mm | 46% | 2.6 m/s | 6.4 |
| 1989 | 40.8°C | 33.6°C | 26.3°C | 45.5°C | 22.2°C | 57 mm | 39% | 3.3 m/s | 6.7 |
| 1988 | 41.9°C | 34.5°C | 27.1°C | 47.4°C | 24.6°C | 34 mm | 41% | 2.5 m/s | 7.1 |
| 1987 | 40.8°C | 33.1°C | 25.4°C | 45.3°C | 20.7°C | 48 mm | 36% | 2 m/s | 6.8 |
| 1986 | 38.8°C | 31.5°C | 24.1°C | 40.7°C | 18.9°C | 92 mm | 46% | 2 m/s | 6.5 |
| 1985 | 41.8°C | 34.4°C | 27.0°C | 45.2°C | 24.5°C | 32 mm | 37% | 2.4 m/s | 7.2 |
| 1984 | 40.9°C | 33.3°C | 25.6°C | 46.3°C | 20.9°C | 51 mm | 43% | 2.8 m/s | 6.9 |
| 1983 | 41.2°C | 33.8°C | 26.5°C | 45.0°C | 22.0°C | 37 mm | 39% | 2.2 m/s | — |
| 1982 | 41.1°C | 33.8°C | 26.4°C | 44.2°C | 21.4°C | 38 mm | 34% | 2 m/s | — |
| 1981 | 38.2°C | 31.9°C | 25.5°C | 42.9°C | 23.2°C | 159 mm | 57% | 2.5 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 40.1°C with lows near 26.4°C (mean 33.3°C), based on 45 years of NASA POWER data.
May averages 81 mm of rainfall in Banka, about average for rainfall. The wettest on record was 313 mm in 2021.
The hottest May reached 47.4°C in 1988. The coldest dipped to 18.9°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have fallen by about 1.3°C. Daytime highs moved from 40.6°C to 38.3°C and overnight lows from 26.2°C to 26°C over the same span.
May is one of the warmer months of the year in Banka and about average for rainfall, so plan for around 40.1°C daytime highs and 26.4°C at night.
Not quite — May is the 12th coolest month in Banka, averaging 33.3°C.
For May in Banka, pack light, breathable clothing and sun protection, with typical highs of 40.1°C and lows of 26.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 45% — relatively dry.
Average wind speed in May is 2.4 m/s. The windiest May on record averaged 3.3 m/s (1989).
The wettest May on record was 2021 with 313 mm. On average, May sees 81 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 Banka behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
