How much rain this month?

Polymarket's monthly rain markets in NYC, Seattle, London, Hong Kong and Seoul. Each share of the range the month's official total lands in pays $1, and a total exactly on a boundary counts in the higher range.

Create a free account

Hong Kong · October

$62,092 traded

This market will resolve according to the total precipitation in mm in Hong Kong between October 1 and October 31, 2026, according to the Hong Kong Observatory.

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 70 to 120 mm at 97¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 20 mm<1¢
20 to 40 mm<1¢
40 to 50 mm<1¢
50 to 70 mm<1¢
70 to 120 mmfavorite97¢
120 to 210 mm<1¢
210 mm or more1¢

Seoul · October

$58,968 traded

This market will resolve according to the total precipitation in mm in Seoul in October, 2026, according to the Korea Meteorological Administration's information for the region/branch of "Seoul".

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 70 to 85 mm at 96¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 20 mm1¢
20 to 30 mm<1¢
30 to 40 mm1¢
40 to 50 mm<1¢
50 to 70 mm<1¢
70 to 85 mmfavorite96¢
85 mm or more1¢

Seattle · October

$52,915 traded

This market will resolve according to the total precipitation in inches in Seattle between October 1 and October 31, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).

The month so far

0.88 in

the Seattle City Area record, through Oct 29. NOAA adds each day the next morning.

Not Sea-Tac airport, the station Kalshi's Seattle markets go by.

The market

Favorite: under 1.75 in at 99¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePriceThe month so far
under 1.75 infavorite99¢in it now
1.75 to 2.5 in1¢0.87 in to go
2.5 to 3 in1¢1.62 in to go
3 to 3.75 in<1¢2.12 in to go
3.75 to 4.75 in<1¢2.87 in to go
4.75 to 6 in<1¢3.87 in to go
6 in or more<1¢5.12 in to go

London · October

$50,273 traded

This market will resolve according to the total precipitation in mm at Heathrow (London Airport) in October, 2026, according to the Met Office.

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 70 to 85 mm at 92¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 35 mm<1¢
35 to 45 mm1¢
45 to 60 mm1¢
60 to 70 mm1¢
70 to 85 mmfavorite92¢
85 to 110 mm<1¢
110 mm or more4¢

NYC · October

$47,096 traded

This market will resolve according to the total precipitation in inches in Central Park, New York City between October 1 and October 31, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).

The month so far

2.22 in

Central Park, through Oct 30. NOAA adds each day the next morning.

The market

Favorite: under 3 in at 99¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePriceThe month so far
under 3 infavorite99¢in it now
3 to 4.25 in1¢0.78 in to go
4.25 to 4.75 in1¢2.03 in to go
4.75 to 5.25 in<1¢2.53 in to go
5.25 to 6.25 in<1¢3.03 in to go
6.25 in or more1¢4.03 in to go

Seoul · November

$141 traded

This market will resolve according to the total precipitation in mm in Seoul in November, 2026, according to the Korea Meteorological Administration's information for the region/branch of "Seoul".

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 55 to 65 mm at 37¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 20 mm14¢
20 to 30 mm16¢
30 to 45 mm18¢
45 to 55 mm33¢
55 to 65 mmfavorite37¢
65 to 85 mm35¢
85 mm or more35¢

London · November

$131 traded

This market will resolve according to the total precipitation in mm at Heathrow (London Airport) in November, 2026, according to the Met Office.

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 60 to 75 mm at 49¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 30 mm28¢
30 to 40 mm11¢
40 to 50 mm35¢
50 to 60 mm44¢
60 to 75 mmfavorite49¢
75 to 100 mm39¢
100 mm or more49¢

NYC · November

$130 traded

This market will resolve according to the total precipitation in inches in Central Park, New York City between November 1 and November 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 3 to 3.5 in at 49¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 2 in43¢
2 to 3 in13¢
3 to 3.5 infavorite49¢
3.5 to 4.25 in47¢
4.25 to 5.75 in40¢
5.75 in or more14¢

Hong Kong · November

$49 traded

This market will resolve according to the total precipitation in mm in Hong Kong between November 1 and November 30, 2026, according to the Hong Kong Observatory.

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 10 to 25 mm at 45¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 5 mm44¢
5 to 10 mm40¢
10 to 25 mmfavorite45¢
25 to 35 mm44¢
35 to 60 mm45¢
60 to 95 mm43¢
95 mm or more41¢

Seattle · November

$20 traded

This market will resolve according to the total precipitation in inches in Seattle between November 1 and November 30, 2026, 11:59PM ET according to the National Oceanic and Atmospheric Administration (NOAA).

The month so far

No running total here: the official figure comes out after the month ends.

The market

Favorite: 4.5 to 5 in at 45¢

Prices 30 minutes late on the free view.

The market and its rules on Polymarket

RangePrice
under 3 in36¢
3 to 4.5 in36¢
4.5 to 5 infavorite45¢
5 to 5.75 in44¢
5.75 to 6.75 in36¢
6.75 to 7.75 in36¢
7.75 in or more38¢

Will it rain today? (Kalshi, daily) · World cities' highs · How Polymarket's markets settle

The month so far adds up NOAA's daily figures for the record each market's rules name: a guide to the monthly total, which NOAA finalizes after the month ends. Almanac shows information and tools. It never says what to buy or sell and never places an order.