East Java weather in May
May is a fair month to visit East Java: highs of 30°C (86°F) and about 123 mm (4.8 in) of rain on average. Nights average 26°C (79°F) and cloud cover 61% (NASA POWER, 2001–2025 averages). It is the 6th driest month of the year and the 6th coolest. Compared with April, it is about as warm and drier; June brings highs of 30°C (87°F) and 74 mm (2.9 in) of rain.
Figures are long-term averages for Surabaya, the largest city in East Java. See below for other places.
Is May a good time to visit East Java?
fair month Weather score 67/100.
May is a fair month in East Java. The weather is usually best in Jun–Sep.
Does it rain a lot in East Java in May?
Some rain is normal: about 123 mm (4.8 in) falls in an average May. It is the 6th driest month of the year.
How warm is East Java in May?
Days average 30°C (86°F) and nights 26°C (79°F).
East Java weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (84°F) | 26°C (78°F) | 337 mm | 90% | least pleasant |
| February | 29°C (83°F) | 25°C (78°F) | 316 mm | 88% | least pleasant |
| March | 29°C (84°F) | 26°C (78°F) | 272 mm | 84% | least pleasant |
| April | 30°C (85°F) | 26°C (79°F) | 193 mm | 76% | fair |
| May | 30°C (86°F) | 26°C (79°F) | 123 mm | 61% | fair |
| June | 30°C (87°F) | 25°C (77°F) | 74 mm | 52% | best |
| July | 31°C (88°F) | 24°C (76°F) | 35 mm | 45% | best |
| August | 32°C (90°F) | 24°C (76°F) | 11 mm | 39% | best |
| September | 33°C (92°F) | 25°C (78°F) | 18 mm | 40% | best |
| October | 33°C (92°F) | 26°C (80°F) | 63 mm | 58% | fair |
| November | 32°C (89°F) | 27°C (80°F) | 140 mm | 78% | fair |
| December | 30°C (85°F) | 26°C (78°F) | 300 mm | 91% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across East Java in May
Weather can differ a lot within East Java: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Surabaya | 30°C (86°F) | 26°C (79°F) | 123 mm | fair |
| Malang | 27°C (81°F) | 21°C (70°F) | 126 mm | fair |
| Situbondo | 30°C (85°F) | 27°C (80°F) | 114 mm | fair |
| Kediri | 28°C (83°F) | 22°C (72°F) | 123 mm | fair |
| Jember | 27°C (81°F) | 20°C (68°F) | 112 mm | fair |
| Probolinggo | 28°C (82°F) | 22°C (71°F) | 119 mm | fair |
| Batu | 27°C (81°F) | 21°C (70°F) | 126 mm | fair |
| Pasuruan | 30°C (85°F) | 26°C (78°F) | 117 mm | fair |
| Madiun | 29°C (84°F) | 22°C (71°F) | 119 mm | fair |
| Singosari | 27°C (81°F) | 21°C (70°F) | 126 mm | fair |
| Blitar | 28°C (83°F) | 22°C (72°F) | 123 mm | fair |
| Mojokerto | 29°C (84°F) | 23°C (73°F) | 121 mm | fair |