GreenlyLast and first frost dates in Surabaya
Indonesia
Surabaya had no frost in 2016–2025, so crops are planted by warmth and rain rather than by frost dates.
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| Last spring frost | none in ten years |
|---|---|
| First autumn frost | none in ten years |
Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.
There is no frost season here: crops are planted by warmth and rain rather than by frost dates.
When the soil warms up in Surabaya
The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo).
| Soil | Date |
|---|---|
| 5 °C | already in the first week of July |
| 10 °C | already in the first week of July |
| 15 °C | already in the first week of July |
| 18 °C | already in the first week of July |
Frost dates near Surabaya
| City | Distance | Last spring frost | First autumn frost |
|---|---|---|---|
| Malang | 82 km | — | — |
| Semarang | 258 km | — | — |
| Yogyakarta | 269 km | — | — |
| Denpasar | 316 km | — | — |
| Bandung | 567 km | — | — |
Seeds, seedlings and markets in Surabaya
Within 15 km of Surabaya OpenStreetMap lists 1 farm-supply shop, 1 plant nursery and 97 markets (collected 28 October 2026). The nearest farm supply to the city centre is PT Angkasa Mulya Trading, 2 km away.
- PT Angkasa Mulya Trading — farm supply
Jalan Kedungdoro 161, 60251 · Mon–Sat 08:30–16:30 · 2 km - Pasar Krempyeng Plampitan Kalimir — market
Jalan Plampitan Kalimir · Mon–Sun 05:00–10:00 · 0 km - Pasar Kedungsari — market
Mon–Sun, public holidays 04:00–13:00 · 2 km - Pasar Asemrowo — market
Jalan Asemrowo, Surabaya · Setiap Hari, Pukul 05.00–13.00 · 3 km - Pasar Pacuan Kuda — market
Jalan Pacuan Kuda · Mon–Sun 05:00–09:00 · 3 km - Pasar Loak Dupak Baru — market
Jalan Dupak Rukun · Mon–Sun 07:00–12:00 · 3 km
Places: © OpenStreetMap contributors, ODbL.
Surabaya: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Surabaya by month
Average weather in Surabaya over 2016–2025: the warmest month is October. Months that average 20 °C or more by day: January–December (29.9–32.7 °C). Months that average 30 °C or more by day: March–January (30.2–32.7 °C). No month averages below 0 °C at night; the coldest nights, in July, average 23.7 °C. About 1905 mm of rain falls in a year, on 206 days; February is the wettest month (326 mm) and August the driest (12 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 30.2 | 24.8 | 312 | 30 |
| February | 29.9 | 24.6 | 326 | 28 |
| March | 30.3 | 24.9 | 285 | 28 |
| April | 30.5 | 25.3 | 177 | 23 |
| May | 30.8 | 25.4 | 107 | 13 |
| June | 30.6 | 24.7 | 64 | 11 |
| July | 30.7 | 23.7 | 23 | 5 |
| August | 31.2 | 23.7 | 12 | 2 |
| September | 32.2 | 24.4 | 23 | 5 |
| October | 32.7 | 25 | 88 | 11 |
| November | 31.7 | 25.3 | 218 | 22 |
| December | 30.8 | 25 | 270 | 28 |
Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).
