**Current forecasts for Jeddah on July 19 center on a daily maximum near 39–41 °C, producing the tight clustering of market-implied odds around the 39 °C, 40 °C, and 41 °C-or-higher brackets.** Numerical weather prediction ensembles show modest spread driven by coastal Red Sea humidity, which typically limits afternoon peaks a few degrees below inland values, combined with prevailing northwesterly flow that enhances mixing and sea-breeze moderation. July climatology places the long-term mean daily maximum near 37–39 °C, with occasional excursions above 40 °C when regional subsidence strengthens under stable high pressure. Traders are weighing this baseline against short-range model updates that could shift the exact peak by 1–2 °C depending on precise timing of maximum insolation, boundary-layer moisture, and any subtle changes in steering winds. With resolution hinging on the official Saudi National Center for Meteorology observation, the close probabilities reflect genuine uncertainty in the final 1–2 °C of the forecast envelope rather than divergent scientific signals.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Jeddah on July 19?
Highest temperature in Jeddah on July 19?
38°C 24%
40°C 24%
39°C 22%
41°C or higher 20%
NEW
NEW
Jul 19, 2026
31°C or below
<1%
32°C
<1%
33°C
1%
34°C
<1%
35°C
1%
36°C
7%
37°C
10%
38°C
24%
39°C
22%
40°C
24%
41°C or higher
20%
38°C 24%
40°C 24%
39°C 22%
41°C or higher 20%
NEW
NEW
Jul 19, 2026
31°C or below
$229 Vol.
<1%
32°C
$136 Vol.
<1%
33°C
$41 Vol.
1%
34°C
$779 Vol.
<1%
35°C
$198 Vol.
1%
36°C
$19 Vol.
7%
37°C
$54 Vol.
10%
38°C
$27 Vol.
24%
39°C
$26 Vol.
22%
40°C
$47 Vol.
24%
41°C or higher
$72 Vol.
20%
This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 Jul '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Current forecasts for Jeddah on July 19 center on a daily maximum near 39–41 °C, producing the tight clustering of market-implied odds around the 39 °C, 40 °C, and 41 °C-or-higher brackets.** Numerical weather prediction ensembles show modest spread driven by coastal Red Sea humidity, which typically limits afternoon peaks a few degrees below inland values, combined with prevailing northwesterly flow that enhances mixing and sea-breeze moderation. July climatology places the long-term mean daily maximum near 37–39 °C, with occasional excursions above 40 °C when regional subsidence strengthens under stable high pressure. Traders are weighing this baseline against short-range model updates that could shift the exact peak by 1–2 °C depending on precise timing of maximum insolation, boundary-layer moisture, and any subtle changes in steering winds. With resolution hinging on the official Saudi National Center for Meteorology observation, the close probabilities reflect genuine uncertainty in the final 1–2 °C of the forecast envelope rather than divergent scientific signals.
This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 Jul '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jul 17, 2026, 1:03 AM ET
Volume
$1,627End Date
Jul 19, 2026Market Opened
Jul 17, 2026, 1:03 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 Jul '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Current forecasts for Jeddah on July 19 center on a daily maximum near 39–41 °C, producing the tight clustering of market-implied odds around the 39 °C, 40 °C, and 41 °C-or-higher brackets.** Numerical weather prediction ensembles show modest spread driven by coastal Red Sea humidity, which typically limits afternoon peaks a few degrees below inland values, combined with prevailing northwesterly flow that enhances mixing and sea-breeze moderation. July climatology places the long-term mean daily maximum near 37–39 °C, with occasional excursions above 40 °C when regional subsidence strengthens under stable high pressure. Traders are weighing this baseline against short-range model updates that could shift the exact peak by 1–2 °C depending on precise timing of maximum insolation, boundary-layer moisture, and any subtle changes in steering winds. With resolution hinging on the official Saudi National Center for Meteorology observation, the close probabilities reflect genuine uncertainty in the final 1–2 °C of the forecast envelope rather than divergent scientific signals.
This market will resolve to the temperature range that contains the highest temperature recorded at the King Abdulaziz International Airport Station in degrees Celsius on 19 Jul '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the King Abdulaziz International Airport Station, available here: https://www.wunderground.com/history/daily/sa/jeddah/OEJN.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volume
$1,627End Date
Jul 19, 2026Market Opened
Jul 17, 2026, 1:03 AM ETResolution Source
https://www.wunderground.com/history/daily/sa/jeddah/OEJNResolver
0x69c47De9D...**Current forecasts for Jeddah on July 19 center on a daily maximum near 39–41 °C, producing the tight clustering of market-implied odds around the 39 °C, 40 °C, and 41 °C-or-higher brackets.** Numerical weather prediction ensembles show modest spread driven by coastal Red Sea humidity, which typically limits afternoon peaks a few degrees below inland values, combined with prevailing northwesterly flow that enhances mixing and sea-breeze moderation. July climatology places the long-term mean daily maximum near 37–39 °C, with occasional excursions above 40 °C when regional subsidence strengthens under stable high pressure. Traders are weighing this baseline against short-range model updates that could shift the exact peak by 1–2 °C depending on precise timing of maximum insolation, boundary-layer moisture, and any subtle changes in steering winds. With resolution hinging on the official Saudi National Center for Meteorology observation, the close probabilities reflect genuine uncertainty in the final 1–2 °C of the forecast envelope rather than divergent scientific signals.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions