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Government construction cost estimate, maximum

12,500 THB/m² — In Samut Sakhon province

Source: Treasury Department (กรมธนารักษ์) construction cost appraisal · License: Open Data Common (Treasury Department building valuation catalogue) · 2024-08-15 to 2027-12-31

Government construction cost estimate, typical

8,000 THB/m² — In Samut Sakhon province

Source: Treasury Department (กรมธนารักษ์) construction cost appraisal · License: Open Data Common (Treasury Department building valuation catalogue) · 2024-08-15 to 2027-12-31

Government construction cost estimate, minimum

400 THB/m² — In Samut Sakhon province

Source: Treasury Department (กรมธนารักษ์) construction cost appraisal · License: Open Data Common (Treasury Department building valuation catalogue) · 2024-08-15 to 2027-12-31

Treasury land appraisal (subdistrict), maximum — assessed value, not market price

45,500 THB/sq_wah — In Tha Mai subdistrict

Source: Treasury Department (กรมธนารักษ์) land valuation (ราคาประเมินที่ดิน) - attach_all_20240805.csv · License: Open Data Common · 2024-08-14 to 2024-08-14

Treasury land appraisal (subdistrict), typical — assessed value, not market price

3,000 THB/sq_wah — In Tha Mai subdistrict

Source: Treasury Department (กรมธนารักษ์) land valuation (ราคาประเมินที่ดิน) - attach_all_20240805.csv · License: Open Data Common · 2024-08-14 to 2024-08-14

Treasury land appraisal (subdistrict), minimum — assessed value, not market price

1,150 THB/sq_wah — In Tha Mai subdistrict

Source: Treasury Department (กรมธนารักษ์) land valuation (ราคาประเมินที่ดิน) - attach_all_20240805.csv · License: Open Data Common · 2024-08-14 to 2024-08-14

Driest month

December — In Samut Sakhon province

Source: Open-Meteo (ERA5 reanalysis, via archive-api.open-meteo.com) · License: CC BY 4.0 (Attribution 4.0 International) -- https://open-meteo.com/en/licence · 1991-01-01 to 2020-12-31

Climate rainfall annual total mean mm

1,170.6 mm — In Samut Sakhon province

Source: Open-Meteo (ERA5 reanalysis, via archive-api.open-meteo.com) · License: CC BY 4.0 (Attribution 4.0 International) -- https://open-meteo.com/en/licence · 1991-01-01 to 2020-12-31

Wettest month

October — In Samut Sakhon province

Source: Open-Meteo (ERA5 reanalysis, via archive-api.open-meteo.com) · License: CC BY 4.0 (Attribution 4.0 International) -- https://open-meteo.com/en/licence · 1991-01-01 to 2020-12-31

Height above nearest drainage (typical)

0.2 m — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Height above nearest drainage (lowest 10%)

-3.4 m — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Terrain slope (typical)

0% — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Terrain slope (steepest 10%)

0.1% — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Distance to nearest watercourse (typical)

7,833.2 m — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Distance to nearest watercourse (closest 10%)

2,727.9 m — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Flash-flood terrain susceptibility

low — In Samut Sakhon province

Source: Terrain-derived flash-flood indicators (HAND + slope + OSM drainage proximity; NOT a forecast or probability, not calibrated against observed events) from Copernicus DEM GLO-30 (via Mapterhorn terrain tiles) and OpenStreetMap waterway data. The banded metric flags whether the region CONTAINS terrain susceptible to flash flooding somewhere within it -- not the susceptibility of the region as a whole, and not of any individual property. · License: Copernicus WorldDEM-30 Licence, commercial use permitted (see ./region-elevation.ts's ELEVATION_SOURCE_LICENSE for the full citation) combined with OpenStreetMap contributors: ODbL 1.0 (https://www.openstreetmap.org/copyright) · 2010-12-12 to 2015-01-07

Elevation, maximum

5.8 m — In Tha Mai subdistrict

Source: Mapterhorn terrain tiles (Copernicus DEM GLO-30 / WorldDEM-30, terrarium encoding, via tiles.mapterhorn.com) · License: Copernicus WorldDEM-30 Licence (COP-DEM-GLO-30-F, 'Global 30m Full, Free & Open' -- https://documentation.dataspace.copernicus.eu/APIs/SentinelHub/Data/DEM/resources/license/License-COPDEM-30.pdf); free of charge, reproduction/distribution/public-communication/adaptation all granted, commercial use permitted; required notice: "produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved." Tiles served by Mapterhorn (© Mapterhorn, https://mapterhorn.com/attribution) -- both notices required. · 2010-12-12 to 2015-01-07

Elevation, typical

3 m — In Tha Mai subdistrict

Source: Mapterhorn terrain tiles (Copernicus DEM GLO-30 / WorldDEM-30, terrarium encoding, via tiles.mapterhorn.com) · License: Copernicus WorldDEM-30 Licence (COP-DEM-GLO-30-F, 'Global 30m Full, Free & Open' -- https://documentation.dataspace.copernicus.eu/APIs/SentinelHub/Data/DEM/resources/license/License-COPDEM-30.pdf); free of charge, reproduction/distribution/public-communication/adaptation all granted, commercial use permitted; required notice: "produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved." Tiles served by Mapterhorn (© Mapterhorn, https://mapterhorn.com/attribution) -- both notices required. · 2010-12-12 to 2015-01-07

Elevation, minimum

1 m — In Tha Mai subdistrict

Source: Mapterhorn terrain tiles (Copernicus DEM GLO-30 / WorldDEM-30, terrarium encoding, via tiles.mapterhorn.com) · License: Copernicus WorldDEM-30 Licence (COP-DEM-GLO-30-F, 'Global 30m Full, Free & Open' -- https://documentation.dataspace.copernicus.eu/APIs/SentinelHub/Data/DEM/resources/license/License-COPDEM-30.pdf); free of charge, reproduction/distribution/public-communication/adaptation all granted, commercial use permitted; required notice: "produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved." Tiles served by Mapterhorn (© Mapterhorn, https://mapterhorn.com/attribution) -- both notices required. · 2010-12-12 to 2015-01-07

Elevation, range

4.8 m — In Tha Mai subdistrict

Source: Mapterhorn terrain tiles (Copernicus DEM GLO-30 / WorldDEM-30, terrarium encoding, via tiles.mapterhorn.com) · License: Copernicus WorldDEM-30 Licence (COP-DEM-GLO-30-F, 'Global 30m Full, Free & Open' -- https://documentation.dataspace.copernicus.eu/APIs/SentinelHub/Data/DEM/resources/license/License-COPDEM-30.pdf); free of charge, reproduction/distribution/public-communication/adaptation all granted, commercial use permitted; required notice: "produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved." Tiles served by Mapterhorn (© Mapterhorn, https://mapterhorn.com/attribution) -- both notices required. · 2010-12-12 to 2015-01-07

Share of 10-day periods with rainfall deficit (10-year)

22.5% — In Krathum Baen district

Source: Climate Hazards Center UC Santa Barbara & WFP -- Thailand: Rainfall Indicators at Subnational Level (HDX) · License: CC BY (Creative Commons Attribution International) · 2016-01-01 to 2025-12-31

Worst 3-month rainfall deficit (10-year)

27.4% — In Krathum Baen district

Source: Climate Hazards Center UC Santa Barbara & WFP -- Thailand: Rainfall Indicators at Subnational Level (HDX) · License: CC BY (Creative Commons Attribution International) · 2016-01-01 to 2025-12-31

PM2.5, annual average (low-cost sensor)

17.8 µg/m³ — In Samut Sakhon province

Source: OpenAQ — โรงเรียนบ้านสันดาบ-2781548 (low-cost) · License: CC BY 4.0 (AirGradient via OpenAQ) · 2025-01-01 to 2026-01-01

PM2.5, annual average

34.6 µg/m³ — In Samut Sakhon province

Source: OpenAQ — Highway District-2167 (reference) · License: Open Data Common (Pollution Control Department) · 2025-01-01 to 2026-01-01

Recent 3-month rainfall vs. normal

91.5% — In Krathum Baen district

Source: Climate Hazards Center UC Santa Barbara & WFP -- Thailand: Rainfall Indicators at Subnational Level (HDX) · License: CC BY (Creative Commons Attribution International) · 2026-07-01 to 2026-09-21