Water Temperature and Weather Data - Marine Environmental Sensing Network (MESN) | National University of Singapore

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Water Temperature and Weather Data - Marine Environmental Sensing Network (MESN)

(National University of Singapore)

This dataset contains monthly averages of water temperature, air temperature, air pressure, relative humidity, solar irradiance and wind speed, read by MESN buoys located at St. John's Island, Raffles Lighthouse, and Pulau Ubin.

MESN is the ocean monitoring arm of St. John's Island National Marine Laboratory (SJINML). Besides water temperature and weather, MESN collects data on a variety of seawater parameters important to biogeochemical and oceanographic processes that are relevant to the study of climate change. For more information on MESN data, please visit https://ombak.mesn.sg/more/parameters

This dataset will be updated biannually (June and December).

Last updated 2 months ago (17 Jun 2026)

Sample OpenAPI query

This code can be used to test a sample API query. It retrieves the data catalogue of this dataset. For a complete guide on query parameters and syntax, please refer to the API documentation

Adding an API key gives you higher rate limits and priority support. Log in to create your API key.

import requests
          
dataset_id = "d_db2cd76f4349bfe4b40db22d8b295e54"
url = "https://api-open.data.gov.sg/v1/public/api/datasets/" + dataset_id + "/poll-download"
        
response = requests.get(url)
json_data = response.json()
if json_data['code'] != 0:
    print(json_data['errMsg'])
    exit(1)

url = json_data['data']['url']
response = requests.get(url)
print(response.text)

Citation

This dataset can be reused and cited in research publications.

National University of Singapore. (2025). Water Temperature and Weather Data - Marine Environmental Sensing Network (MESN) (2026) [Dataset]. data.gov.sg. Retrieved September 9, 2026 from https://data.gov.sg/datasets/d_db2cd76f4349bfe4b40db22d8b295e54/view

Water Temperature and Weather Data - Marine Environmental Sensing Network (MESN)

Sample OpenAPI query

Citation

About this dataset

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