Beach
Thirty-first Street Beach
Illinois · United States · Pacific Ocean
41.8386, -87.6067 · Douglas, 1 km
- 22°Sea · August
- 25°High · July
- 8.6 hSunshine · July
Your month at the beach
Thirty-first Street Beach in January
- 0°CAir, daytime high-5°C at night
- 3°CSea temperature
- 2.2 hSunshine a day
- 9 daysRainy days in the month48 mm in total
- 25 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in February
- 0°CAir, daytime high-5°C at night
- 2°CSea temperature
- 3.5 hSunshine a day
- 8 daysRainy days in the month54 mm in total
- 24 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in March
- 5°CAir, daytime high-1°C at night
- 2°CSea temperature
- 5.0 hSunshine a day
- 9 daysRainy days in the month62 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in April
- 10°CAir, daytime high4°C at night
- 4°CSea temperature
- 6.0 hSunshine a day
- 13 daysRainy days in the month94 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in May
- 15°CAir, daytime high9°C at night
- 7°CSea temperature
- 6.6 hSunshine a day
- 14 daysRainy days in the month118 mm in total
- 18 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in June
- 21°CAir, daytime high15°C at night
- 14°CSea temperature
- 7.9 hSunshine a day
- 14 daysRainy days in the month102 mm in total
- 16 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in July
- 25°CAir, daytime high20°C at night
- 21°CSea temperature
- 8.6 hSunshine a day
- 13 daysRainy days in the month95 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in August
- 25°CAir, daytime high20°C at night
- 22°CSea temperature
- 7.6 hSunshine a day
- 13 daysRainy days in the month105 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in September
- 22°CAir, daytime high16°C at night
- 20°CSea temperature
- 6.6 hSunshine a day
- 11 daysRainy days in the month86 mm in total
- 18 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in October
- 15°CAir, daytime high10°C at night
- 14°CSea temperature
- 4.5 hSunshine a day
- 10 daysRainy days in the month99 mm in total
- 22 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in November
- 9°CAir, daytime high4°C at night
- 9°CSea temperature
- 3.2 hSunshine a day
- 9 daysRainy days in the month61 mm in total
- 24 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Thirty-first Street Beach in December
- 3°CAir, daytime high-2°C at night
- 6°CSea temperature
- 2.1 hSunshine a day
- 9 daysRainy days in the month58 mm in total
- 25 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 37Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 13 kmAirport: Chicago Midway International Airport (MDW)In a straight line; by road it is further
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
January from 2020 to 2025
In January 2025 the sea averaged 2.6 °C — 0.7 °C below the 1991–2020 average.
1991–2020 average: 3.3 °C
1991–2020 average: -0.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
February from 2020 to 2025
In February 2025 the sea averaged 1.1 °C — 0.9 °C below the 1991–2020 average.
1991–2020 average: 2.0 °C
1991–2020 average: 0.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
March from 2020 to 2025
In March 2025 the sea averaged 2.6 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 2.0 °C
1991–2020 average: 4.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
April from 2020 to 2025
In April 2025 the sea averaged 6.1 °C — 2.3 °C above the 1991–2020 average.
1991–2020 average: 3.8 °C
1991–2020 average: 10.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
May from 2020 to 2025
In May 2025 the sea averaged 9.7 °C — 2.6 °C above the 1991–2020 average.
1991–2020 average: 7.1 °C
1991–2020 average: 15.0 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
June from 2020 to 2025
In June 2025 the sea averaged 16.5 °C — 2.4 °C above the 1991–2020 average.
1991–2020 average: 14.1 °C
1991–2020 average: 21.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
July from 2020 to 2025
In July 2025 the sea averaged 23.4 °C — 2.5 °C above the 1991–2020 average.
1991–2020 average: 20.9 °C
1991–2020 average: 25.2 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
August from 2020 to 2025
In August 2025 the sea averaged 23.5 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 22.5 °C
1991–2020 average: 25.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
September from 2020 to 2025
In September 2025 the sea averaged 20.7 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 20.1 °C
1991–2020 average: 21.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
October from 2020 to 2025
In October 2025 the sea averaged 17.3 °C — 2.8 °C above the 1991–2020 average.
1991–2020 average: 14.5 °C
1991–2020 average: 15.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
November from 2020 to 2025
In November 2025 the sea averaged 10.2 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 9.2 °C
1991–2020 average: 8.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
December from 2020 to 2025
In December 2025 the sea averaged 4.7 °C — 0.9 °C below the 1991–2020 average.
1991–2020 average: 5.6 °C
1991–2020 average: 2.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
When to go
1991–2020 averagesThe year at a glance
- Jan3°2 h48 mm
- Feb2°4 h54 mm
- Mar2°5 h62 mm
- Apr4°6 h94 mm
- May7°7 h118 mm
- Jun14°8 h102 mm
- Jul21°9 h95 mm
- Aug22°8 h105 mm
- Sep20°7 h86 mm
- Oct14°4 h99 mm
- Nov9°3 h61 mm
- Dec6°2 h58 mm
Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.
Sea temperature
1991–2020 averagesClimate through the year
1991–2020 averagesRain
Sunshine
Sunshine hours are estimated from measured solar radiation, not observed directly.
Month by month
1991–2020 averagesEvery month at Thirty-first Street Beach: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 0 | -5 | 3 | 48 | 9 | 2.2 | 25 |
| February | 0 | -5 | 2 | 54 | 8 | 3.5 | 24 |
| March | 5 | -1 | 2 | 62 | 9 | 5.0 | 21 |
| April | 10 | 4 | 4 | 94 | 13 | 6.0 | 21 |
| May | 15 | 9 | 7 | 118 | 14 | 6.6 | 18 |
| June | 21 | 15 | 14 | 102 | 14 | 7.9 | 16 |
| July | 25 | 20 | 21 | 95 | 13 | 8.6 | 15 |
| Augustwarmest sea | 25 | 20 | 22 | 105 | 13 | 7.6 | 15 |
| September | 22 | 16 | 20 | 86 | 11 | 6.6 | 18 |
| October | 15 | 10 | 14 | 99 | 10 | 4.5 | 22 |
| November | 9 | 4 | 9 | 61 | 9 | 3.2 | 24 |
| December | 3 | -2 | 6 | 58 | 9 | 2.1 | 25 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
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About these numbers
Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.
| What | Where it comes from | Nearest measurement |
|---|---|---|
| Air, rain and sunshine | NASA POWER | 20 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 4 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 20 km away |
| Lifeguards and places to stay | OpenStreetMap | within 1–5 km |
| Nearest airport | OurAirports | straight-line distance |
| Image at the top | Sentinel-2 cloudless (EOX) | at this spot |