Evidences
84 results
For the week of October 12-18, 2026, Costa Rica's National Meteorological Institute (IMN) forecasts a generalization of dry conditions nationwide: the Pacific, Caribbean, Northern Zone, Central Valley, and Northwestern Zone would all see below-normal rainfall, with the forecast's uncertainty level rated as high.
IMN Costa Rica (2026)
Instituto Meteorologico Nacional (IMN) de Costa Rica. (2026, September). Pronostico subestacional: valido del 21 de setiembre al 18 de octubre de 2026. https://www.imn.ac.cr/web/imn/busqueda?_101_assetEntryId=564589&_101_struts_action=%2Fasset_publisher%2Fview_content&_101_type=content&_101_urlTitle=contenido-pronostico-subestacional&p_p_id=101&p_p_lifecycle=0&p_p_mode=view&p_p_state=maximized
For the period September 21 to October 18, 2026, Costa Rica's National Meteorological Institute (IMN) forecasts below-normal rainfall across the Pacific slope, Central Valley, and Northwestern Zone, driven by trade winds unusually stronger than typical for this time of year - an atypical pattern consistent with the rainfall deficit El Nino has been driving across Central America during 2026. The Caribbean and Northern Zone would remain rainy through the second half of September before returning to normal conditions in October.
IMN Costa Rica (2026)
Instituto Meteorologico Nacional (IMN) de Costa Rica. (2026, September). Pronostico subestacional: valido del 21 de setiembre al 18 de octubre de 2026. https://www.imn.ac.cr/web/imn/busqueda?_101_assetEntryId=564589&_101_struts_action=%2Fasset_publisher%2Fview_content&_101_type=content&_101_urlTitle=contenido-pronostico-subestacional&p_p_id=101&p_p_lifecycle=0&p_p_mode=view&p_p_state=maximized
The share of the United States and Puerto Rico in drought grew by 12.2 percentage points over the past month, reaching 49.77% as of September 15, 2026 (59.37% across the Lower 48 states); the affected population grew 11.2% over the same period, to 103.5 million people, according to the U.S. Drought Monitor.
U.S. Drought Monitor / Drought.gov (2026)
National Integrated Drought Information System (NIDIS). (2026, September 15). National Current Conditions. Drought.gov. https://www.drought.gov/current-conditions
Flash drought continues to worsen across the Southern Plains and the Lower Mississippi River Basin, and this week began affecting parts of the Southeastern United States as well, according to the U.S. Drought Monitor (week of September 9-15, 2026). Conditions improved in the Midwest and showed little change in the West.
U.S. Drought Monitor / Drought.gov (2026)
National Integrated Drought Information System (NIDIS). (2026, September 15). National Current Conditions. Drought.gov. https://www.drought.gov/current-conditions
5 to 15°F above normal were temperatures across much of Texas, Oklahoma, Arkansas, Mississippi and Tennessee the week of September 8, 2026, worsening soil moisture deficits and driving widespread agricultural drought impacts across the region.
Riganti & Tadesse (2026)
Riganti, C., & Tadesse, T. (2026, 8 de septiembre). National Drought Summary for September 8, 2026. U.S. Drought Monitor, National Drought Mitigation Center. https://droughtmonitor.unl.edu/services/data/summary/html/usdm_summary_20260908.html
10 to 15°F above normal were temperatures across large parts of Iowa, Missouri and Illinois (Corn Belt) the week of September 8, 2026, driving widespread agricultural drought impacts in south-central and southwest Missouri.
Riganti & Tadesse (2026)
Riganti, C., & Tadesse, T. (2026, 8 de septiembre). National Drought Summary for September 8, 2026. U.S. Drought Monitor, National Drought Mitigation Center. https://droughtmonitor.unl.edu/services/data/summary/html/usdm_summary_20260908.html
312,700 tonnes of sugarcane were harvested in Guadeloupe in 2026, approximately 35% less than in 2025.
Agence France-Presse (2026).
Agence France-Presse. (2026, September 6). En Guadeloupe, la sécheresse met en péril la future récolte de canne à sucre. https://www-pp.afp.com/fr/en-guadeloupe-la-secheresse-met-en-peril-la-future-recolte-de-canne-sucre
13 eastern Caribbean territories experienced some degree of dryness during July 2026: Tobago, Barbados, St Thomas, St Vincent, Saint Lucia, Martinique, Dominica, St Maarten, Guadeloupe, St Kitts, Antigua, St Croix and Anguilla.
Caribbean Regional Climate Centre (2026).
Caribbean Regional Climate Centre. (2026, September 4). SPI Monitor July 2026. https://rcc.cimh.edu.bb/recent/
Primera-season maize in Honduras and Nicaragua was rated 'Poor' (yields 5-25% below the 5-year average) due to prolonged dry spells and high temperatures. Guatemala and El Salvador are also showing concern over the same climate driver.
GEOGLAM Crop Monitor (2026)
GEOGLAM Crop Monitor. (2026, September 3). Global Crop Monitor (No. 47). https://www.cropmonitor.org/global-crop-monitor
>70% is the probability of much below-normal precipitation across the northeastern Caribbean from September through November 2026, according to the North American Multi-Model Ensemble.
National Weather Service San Juan (2026).
National Weather Service San Juan. (2026, September 3). Drought Information Statement for Puerto Rico and the U.S. Virgin Islands. https://forecast.weather.gov/product.php?issuedby=SJU&product=DGT&site=NWS
