Hong Kong in May: what to plant
Over the last 5 years, May in Hong Kong has run 22.9–27.0°C with about 309 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 Hong Kong is actually having, today.
Grow one in Hong Kong's weather right now →❄️ No sub-zero nights in May 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 7.7 h of sunshine a day this month. Within the month it warms by about 2.5°C from the first ten days to the last.
Sow this month — when would you harvest?
Assuming you sow in mid-May, then adding up the warmth Hong Kong usually gets, one day at a time — which is why some of these run past the end of the month.
| Crop | Days | Harvest around |
|---|---|---|
| 🟣 Beetroot | 32 | Jun 15 |
| 🥔 Potato | 47 | Jun 30 |
| 🌶️ Okra | 63 | Jul 16 |
| 🍆 Aubergine | 92 | Aug 14 |
| 🥒 Luffa | 81 | Aug 3 |
| 🥬 Bok Choy | 22 | Jun 5 |
| 🥬 Swiss chard | 31 | Jun 14 |
| 🌿 Garlic chives | 40 | Jun 23 |
| 🌶️ Chili Pepper | 85 | Aug 7 |
| 🥕 Carrot | 43 | Jun 26 |
| 🌻 Sunflower | 54 | Jul 7 |
| 🧅 Onion | 49 | Jul 2 |
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.
- 🟣 Beetroot about 34 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🥔 Potato about 51 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🌶️ Okra about 76 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🍆 Aubergine about 109 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🥒 Luffa about 95 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🥬 Bok Choy about 23 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🥬 Swiss chard about 33 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🌿 Garlic chives about 43 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🌶️ Chili Pepper about 98 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🥕 Carrot about 46 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🌻 Sunflower about 60 days to harvest Recent mean 24.9°C — right in the sweet spot
- 🧅 Onion about 53 days to harvest Recent mean 24.9°C — right in the sweet spot
Leave these for another month
- 🌿 Coriander — Recent mean 24.9°C is too hot (ideal 8–24°C)
- 🫘 Broad bean — Recent mean 24.9°C is too hot (ideal 6–22°C)
- 🥕 Parsnip — Recent mean 24.9°C is too hot (ideal 6–22°C)
Other months in Hong Kong
📍 Somewhere else? Look up your own city →
Temperature and rainfall come from Open-Meteo's historical observations for Hong Kong, 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.