Sydney in December: what to plant
Over the last 5 years, December in Sydney has run 17.2–25.4°C with about 72 mm of rain across the month. Here is what weather like that will carry to harvest.
Everything above is a five-year average. In the game it is this — the weather Sydney is actually having, today.
Grow one in Sydney's weather right now →❄️ No sub-zero nights in December in the last 5 years — frost is not the limiting factor here.
🗓️ No night at or below 0°C in the last 5 years — frost is not a limiting factor here, and tender crops can stay out year-round.
☀️ About 11.5 h of sunshine a day this month. Temperatures hold steady through the month.
Sow this month — when would you harvest?
Assuming you sow in mid-December, then adding up the warmth Sydney usually gets, one day at a time — which is why some of these run past the end of the month.
| Crop | Days | Harvest around |
|---|---|---|
| 🥢 Yardlong bean | 96 | Mar 20 |
| 🥒 Cucumber | 83 | Mar 7 |
| 🫛 Edamame | 99 | Mar 23 |
| 🎃 Pumpkin | 94 | Mar 18 |
| 🌿 Amaranth greens | 46 | Jan 29 |
| 🌻 Sunflower | 71 | Feb 23 |
| 🥬 Celery | 76 | Feb 28 |
| 🥔 Potato | 60 | Feb 12 |
| 🧅 Leek | 64 | Feb 16 |
| 🥬 Cabbage | 58 | Feb 10 |
| 🍒 Cherry Radish | 19 | Jan 2 |
| 🌿 Dill | 33 | Jan 16 |
Best crops to sow now
They are all ideal for this month — the only real difference is how long each one takes, so pick whatever you want to eat.
- 🥢 Yardlong bean about 106 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🥒 Cucumber about 92 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🫛 Edamame about 106 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🎃 Pumpkin about 102 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🌿 Amaranth greens about 49 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🌻 Sunflower about 76 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🥬 Celery about 80 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🥔 Potato about 63 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🧅 Leek about 67 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🥬 Cabbage about 61 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🍒 Cherry Radish about 19 days to harvest Recent mean 21.3°C — right in the sweet spot
- 🌿 Dill about 34 days to harvest Recent mean 21.3°C — right in the sweet spot
Leave these for another month
- 🌿 Rocket — 26 day(s) of heat stress
- 🌿 Spinach — 16 day(s) of heat stress
- 🫛 Peas — Recent mean 21.3°C is too hot (ideal 7–21°C)
Other months in Sydney
📍 Somewhere else? Look up your own city →
Temperature and rainfall come from Open-Meteo's historical observations for Sydney, averaged day by day over the last 5 years. Whether a crop finishes in time is worked out from its own starting temperature and heat requirement — those numbers are listed on each crop page if you want to check them.