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When to plant peas in Sapporo: 18 April – 4 August

In Sapporo, peas: sow straight into the bed from 18 April to 4 August.

Peas in Sapporo: soil, season and weather

Peas tolerates light frost and could go in three weeks before the last frost (9 May), but the top 7 cm of soil reaches its minimum of 4 °C only around 5 May, 17 days after that.

Last spring frost9 May
Top 7 cm of soil at 4 °C5 May, 4 days before the last frost
First autumn frost17 October, 182 days after the start
Days in the bed to the first harvest (card)74
First harvest, if planted in this window1 July – 17 October
Days left for picking108
Daylight13:31 on 18 April
Watering outdoors when fruiting (card)every 3 days; the driest month, April, has 13 rainy days

Peas in Sapporo: care after planting

Planted on 18 April: in the first weeks water every 6 days.

Pests and diseases of peas to watch for:

Weather in Sapporo during the peas season

About 923 mm of rain falls in the season; April is the driest month (87 mm) and August the wettest (200 mm).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
April6.7-1.8871313:23
May14.44.9931314:39
June17.89.61331615:21
July22.314.81511615:04
August22.115.22001713:59
September18.110.61391312:33
October10.93.31201411:06

ERA5 2016–2025, Open-Meteo

Peas in nearby cities

All the nearest cities on our list plant peas earlier than Sapporo; the closest date is in Khabarovsk, 9 days earlier.

CityDistanceDateDifference
Sendai534 km10 March – 10 September39 days earlier
Niigata604 km15 February – 7 October62 days earlier
Vladivostok768 km18 March – 23 August31 days earlier
Khabarovsk774 km9 April – 3 August9 days earlier
Tokyo832 km24 February – 1 October53 days earlier
Nagoya956 km1 March – 27 September48 days earlier

Where to buy peas seeds in Sapporo

Seeds go straight into the bed from 18 April to 4 August; buy them before that. Within 15 km of Sapporo OpenStreetMap lists 2 garden centres, 1 farm-supply shop, 2 markets and 3 farm shops (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions

When to plant peas in Sapporo?

In Sapporo, peas: sow straight into the bed from 18 April to 4 August.

When is the last spring frost in Sapporo?

Last spring frost around 9 May, first autumn frost around 17 October.

Other crops in Sapporo, with their dates